Difference between revisions of "Castiel"
(i think we'll keep his status as presumed dead for the moment - not sure I'm willing to trust the word of leviathans just yet)
(as confirmed at VanCon timeline pretty much fits with actual time DESPITE the jump by a year in season6)
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Castiel an [[Angel|Angel of Heaven]], who manifested on Earth inside his [[Vessel]], [[Jimmy Novak]].
Many angels laid siege to [[Hell]] to rescue [[Dean]], but it was Castiel who ultimately pulled Dean out. According to Castiel, he did so "because God commanded it". His hand print was burned into Dean's left shoulder. It is later revealed that he was the one who raised [[Sam]]'s soulless body from [[Lucifer's Cage]].
Many angels laid siege to [[Hell]] to rescue [[Dean]], but it was Castiel who ultimately pulled Dean out. According to Castiel, he did so "because God commanded it". His hand print was burned into Dean's left shoulder. It is later revealed that he was the one who raised [[Sam]]'s soulless body from [[Lucifer's Cage]].
Revision as of 00:58, 26 September 2011
|Actor|| Misha Collins|
|Dates||Before Humanity - 2011 (presumed dead)|
|Location||No fixed location|
|Occupation|| Angel (Formerly)|
|Episode(s)||various in Seasons 4-7 (see below)|
I'm the one who gripped you tight and raised you from perdition.
– Castiel to Dean, 4.01 Lazarus Rising
Many angels laid siege to Hell to rescue Dean, but it was Castiel who ultimately pulled Dean out. According to Castiel, he did so "because God commanded it". His hand print was burned into Dean's left shoulder. It is later revealed that he was the one who raised Sam's soulless body from Lucifer's Cage.
After succeeding in his secret plot to take in the power of the millions of souls in Purgatory, Castiel declares himself the new God - though Death later downgrades his up-titled status to "mutated Angel". After smiting many people he considered to be doing evil in God's name, he blacks out and loses control of his Vessel, and his powers, to possessing Leviathans. Conceding to Dean and Sam's wishes, Castiel is forced to attempt to return all of the souls and the Leviathans to Purgatory. Some of the Leviathans hang on inside of his Vessel while Castiel unloads the souls to Purgatory. They forcefully take control and state that Castiel is now dead.
Castiel manifests on Earth through possession of a vessel - in his case Jimmy Novak. Castiel describe's his true angelic form as a "multidimensional wavelength of celestial intent  that is is as big as the Chrysler Building in New York, which is 1047 feet (319 m) in height..Looking on Castiel's true form will burn out a human's eyes, as Pamela Barnes found when she tried to summon him in a seance.
Castiel's true voice, like the true voices of other angels, is piercing to the human ear. He communicates with his vessel, Jimmy Novak, through the electronics in his home, and appears to use an analogous method to communicate with Dean and Sam in Heaven. Castiel can also speak to his vessel unaided; he converses with Jimmy to obtain his consent to serve as a vessel. Castiel, using his vessel, can easily overpower and kill demons, sometimes even groups of them, often just by touching them.
Castiel is able to teleport himself, and in some cases groups of people, through time and space. He can cover great distances in a matter of seconds, as shown in 6.06 You Can't Handle The Truth when he believes Gabriel's Horn of Truth has been discovered, and searches an entire city in moments. The angel possesses vast occult knowledge, ranging from lore, to spells cast in Enochian, to the structure and defenses of Hell. His knowledge of human customs and behavior is somewhat lacking. Cas can move objects with a gesture. Castiel is also proficient with an Angel Sword, generally outmatching his angelic opponents while using it.
Castiel's initial rank in The Host of Heaven is unknown, and the abilities he displays have varied based on his changing status. In the past Anna Milton, in her angelic state, was his superior in their Angel Garrison. Uriel appears to be junior to him, until he is promoted when Castiel's superiors become concerned about Cas's empathy for Dean. Zachariah was also his superior. However, Castiel seems to have been higher in rank than the henchmen that often accompanied Zachariah. He states in 5.02 Good God Y'All that he has been cut off from Heaven after helping Dean escape from Zachariah in 4.22 Lucifer Rising. This means that he lost some of his abilities, and he does not have the power to heal Bobby. After banishing himself and a group of other angels, Castiel loses more of his powers and appears almost mortal at the end of Season 5.
Castiel has died twice and been resurrected: in 5.01 Sympathy For The Devil after he was killed by Raphael, and in 5.22 Swan Song after he was killed by Lucifer. After he dies and comes back for a second time, Castiel states the he believes God brought him back "new and improved". He is able to heal others with a touch, as shown with Dean, and resurrect people at will, as shown with Bobby, and later implied in 6.20 The Man Who Would Be King. He demonstrates pyrokinesis when he burns Crowley's bones. In 6.19 Mommy Dearest, Castiel shows the ability to incinerate lesser monsters, such as the vampire Lenore, by touch. He also releases a blast of white light from his palms that instantly kills anything that sees it.
Castiel began a civil war in Heaven after the defeat of Lucifer to prevent Raphael from restarting the Apocalypse. After taking in the souls of Purgatory, Castiel defeats Raphael. With the souls, he no longer is affected by an Angel Sword; he claims that he is no longer an angel, but the new "God". He sets about smiting his enemies and righting the wrongs he perceives, but he cannot keep the Purgatory creatures inside him at bay, and begins to deteriorate. He goes to Sam, Dean, and Bobby, who with help from Death rework the ritual to open Purgatory. The souls leave Castiel, and he collapses. He appears dead, but his vessel heals and he awakes. He apologizes to Dean, and pledges to find some way of redeeming himself. His plans are cut short when one (or some) of the creatures inside him (Leviathans) who managed to hold on takes over his body and declares that 'Cas' is dead.
Because he was an angel, Castiel initially expressed almost no emotion towards humans, and had little room for disobedience or feelings, as he was driven to follow his orders, although he reveals does have doubts about the morality of his orders.. As he spends more time with Dean, he develops empathy and affection for him, and eventually for those close to him, and humans in general. Castiel's superiors begin to question his loyalty and promote Uriel to oversee him. Castiel eventually rebels against and is ostracised from heaven. He allies himself with Dean, and despite his despondency over the absence of his maker and their desperate situation, Castiel continues to fight against the Apocalypse.
After his second resurrection by God, with enhanced abilities, he sees his decisions and support of freewill to have been affirmed. Castiel begins to show pride, while remaining somewhat naive with regard to consequences. Crowley is able manipulate this budding sense pride to get Castiel to start the Angelic Civil War. Castiel becomes dedicated to his own decisions, and tends to pass over other opinions, even Dean's, in the absence of another clear course. He eventually doublecrosses Crowley, taking in the souls of Purgatory alone. He then insists on worship from his former friends. He intends to be an involved god, a better and loving god who will not abandon the world. He renounces his dedication to free will, saying that angels need a firm hand. He is quick to smite those he feels to be hypocritical and unjust, and rewards those who have faith. But Castiel is being influenced by entities inside him (Leviathans, and his actions become erratic and violent. He realizes he is not strong enough to contain the power, and at a prompt from Sam, he goes to the brothers for help. He is apologetic and humbled; after the souls are out of him he wants to find a way to redeem himself before the brothers. The Leviathans end his plans.
- Castiel's name is first mentioned in the Season 3 episode 3.06 Red Sky At Morning during the graveyard scene where Sam reads aloud a summoning ritual from his father's journal. He speaks the names of several angels during the ritual, and one of them is Castiel.
- Misha Collins reports that "Kripke wanted to base the look of the character on the comic book character ‘Constantine’" Source.
- There was great secrecy around the introduction of the character. When the role was being cast it was advertised as being for a demon. It was only at the audition that Misha found out Castiel was an Angel. Read the casting sides for Castiel.
- Mark Pellegrino who plays Lucifer also auditioned for the role of Castiel.
- Dean first refers to Castiel as "Cas" in 4.04 Metamorphosis. The nickname is subsequently used by Sam and Anna then Uriel as well; later several characters refer to him by the nickname, e.g. Ellen Harvelle.
- The shows' writers spell the nickname "Cass" (Source). In fandom, and particularly in Fanfiction it is almost exclusively spelled "Cas".
- On the Season 4 DVD the english subtitles call him "Cass" and other times it's "Cas".
- According to "A Dictionary of Angels: Including the Fallen Angels"(ISBN-13: 978-0029070529), Castiel is an Angel Of Thursday in the occult lore. This may be a reference to the fact that Supernatural aired on Thursday nights on The CW when the character was introduced. Crowley refers to Cas as "The Angel of Thursday" in 6.20 The Man Who Would Be King. He also comments that it isn't Castiel's day; this may refer to the show having been moved to Fridays.
- There is a municipality in Switzerland called Castiel. Its coat of arms is Saint George killing a dragon. It looks similar to Michael fighting a dragon. This image has appeared in paintings in 2.13 Houses of the Holy and 4.22 Lucifer Rising.
Castiel in Fandom
- spn_castiel - Castiel group on LJ
- deancastiel - LJ community to the relationship between Castiel and Dean
- Angel Whump - LJ community for fic where Castiel gets "whumped" i.e. hurt
- Rock Salt And Feathers - A fan fiction archive for the pairing of Dean and Castiel
- Fanfiction featuring Castiel on Fanfiction.net
- @HeWhoIsCastiel - Castiel role playing account on Twitter
- thisisverystrange - Castiel RP Tumblr Blog
When Dean awakens and climbs out of his coffin, he does not know who rescued him from Hell. Castiel tries to 'speak' to Dean after his resurrection, but all Dean hears is a piercing sound. When Pamela Barnes conducts a seance to reveal the being who saved Dean, she reveals that its name is Castiel. Pamela orders him to appear and attempts to catch a glimpse of him. Castiel warns her off, but she persists and is blinded when she encounters him psychically. Again, while Dean is alone in his hotel room in Pontiac, Castiel tries to speak to Dean, but his 'voice' shatters all the glass in the room and makes Dean's ears bleed.
Assuming that what resurrected him is evil, Dean is intent on summoning Castiel and destroying him. Dean and Bobby prepare an empty warehouse with protective sigils and symbols, and Bobby performs a summoning ritual. The ritual does not produce immediate results, but Dean and Bobby wait to see if something will manifest. When Castiel appears, Bobby and Dean shoot him with rock salt, but this has no effect. Dean stabs Castiel with Ruby's Knife, also to no avail. Castiel touches Bobby on the forehead, causing him to pass out.
Dean questions Castiel, demanding to know what he is. Castiel reveals that he is "an angel of the Lord" and that he is occupying a vessel. Castiel tells Dean he is inside the body of a pious man who "prayed for this". Castiel explains that he saved Dean from Hell on God's command. He tells Dean that God "has work for him."
Castiel appears to Dean in a dream set in Bobby's kitchen, and confirms that the spirits who attacked them were Witnesses. He tells Dean that Lilith summoned them, and that in so doing she broke one of The 66 Seals. He explains that the angels are fighting to keep the other seals in tact, because when the last one is broken, Lucifer will be freed.
Castiel sends Dean back 1973 to meet his parents when they were young. The purpose of this was to show Dean the truth of what happened with Mary Winchester and Azazel. Castiel explains that the angels still have no idea what Azazel's endgame is. He then tells Dean that Sam is headed down a dangerous road and that if Dean doesn't stop him, the angels will.
Dean and Sam return to their motel room to find Castiel and Uriel waiting. Sam is thrilled to meet Castiel. Castiel's response is to acknowledge Sam as the the 'boy with the demon blood' and says that he is glad Sam is no longer using his powers. Castiel reveals they found a hex bag, which would've killed the boys, secreted in the room. He then tells them that the raising of Samhain by the witch will break another of The 66 Seals. He advises Sam and Dean to leave town because he and Uriel are going to destroy it. Sam and Dean argue that they can find and kill the witch and stop the summoning of Samhain.
Later Uriel expresses his contempt for humans and tries to persuade Castiel that they should destroy the town anyway. Castiel reminds him that Dean was saved because he has 'potential', and reminds Uriel that they must follow their 'true orders'.
After Sam has used his powers to send Samhain to Hell, Castiel appears to Dean. He reveals that their true orders were to follow Dean's decision, as a test under battlefield conditions. Dean, thinking he's failed, asserts that he'd make the same decisions all over again if he had to, because of what he and Sam have saved. Castiel confides that he was praying Dean would choose as he did, and that he respects and loves humans as God's creations. He also admits that he has doubts about the plan from Heaven, and is no longer sure what is right and what is wrong. He warns that in the coming months, there will be more hard decisions for Dean -- and the angel does not envy him that.
Castiel appears with Uriel to kill Anna at the end of the episode.
Castiel and Uriel appear and demand that Sam and Dean hand over Anna, with Castiel announcing, "We're here for Anna...she has to die." Uriel states that Anna is not as innocent as she appears. The boys protest but the angels attack. Suddenly a bright light engulfs them and the angels are repelled and disappear. The boys go to the room where Anna was hiding, and find that she has used her blood to draw sigils on a mirror and use some spell against the angels.
Uriel and Castiel reappear from being banished later to take Anna. Dean's choice is revealed: either Anna dies - or Sam. As the angels are about to take her, an injured Ruby appears with Alastair. The demons and angels confront each other and a fight ensues. During the confrontation Castiel faces off with Alastair, landing several blows and trying to cast the demon back into the Pit. It proves ineffective and Alastair pins Castiel to the ground, strangles him and starts a demonic chant. Castiel is saved from Alastair's grip when Dean hits the demon across the back with a tire iron and distracts him from Castiel.
During the fight Anna steals her grace from Uriel and becomes an angel again. During her transformation, Alastair disappears and his host is destroyed. Uriel and Castiel leave, and it is discovered that Sam had planned all along to bring the demons and angels together to get them to fight each other.
Castiel, pretending to be Bobby Singer, tells Sam by phone about a scenario described in a version of Revelations:
- And he bloodied death under the newborn sky
- Sweet to taste
- But bitter once devoured
This is one of The 66 Seals which will be broken if two reapers are killed under a solstice moon. Castiel needs Sam and Dean to prevent the killing because the demons responsible are holed up in a refuge covered in Enochian Sigils that prevent angels from entering. The boys are successful in preventing the seal from being broken, and in the process Castiel captures Alastair.
After talking with a reaper, Dean asks Castiel why, if death is part of the natural order, he was rescued from Hell. Castiel replies "You're different."
In the first scene, Castiel finds an angel from his garrison dead.
Castiel and Uriel then appear in the Winchester's hotel, explaining to Dean that the torturing skills he learned in Hell are required to break Alastair so that they can identify which demon is killing angels. Dean refuses to accompany them, but Uriel and Castiel transport him to the place where Alastair is kept in spite of this protest.
Once there, Dean insists on speaking to Cas alone. Uriel departs. Castiel then explains that he has been placed under Uriel's authority because his superiors feel he is too emotionally involved with the Winchesters. They believe that this is impairing his judgment. Castiel tells Dean that the angels need, rather then want, him to do this. Dean is convinced, and enters the room where Alastair is held. Castiel waits outside, listening.
Anna arrives and attempts to convince Castiel that forcing Dean into torturing again is morally wrong, and that it could not truly be God's orders. Castiel is clearly uncertain. Anna approaches him, explaining that she felt doubt before she left Heaven. She tries to persuade him that together they could find an answer. Castiel backs away from her, insisting that they have nothing in common because she fell. He tells her to leave, and she does.
Meanwhile, Alastair is freed from the devils trap and attacks Dean. Castiel enters the room and fights him, but Alastair manages to trap him. Alastair then begins to chant a demonic spell to send Castiel back to Heaven, but Sam interrupts him using his demonic powers, saving Castiel. Alastair is killed by Sam after insisting that no demon is responsible for the deaths of the angels.
Later, Castiel confronts Sam at the hospital where Dean is being treated. Sam assures Castiel that Alastair was not lying.
Uriel and Castiel meet at a playground to talk about how 'something is wrong' in Heaven. Castiel then calls Anna and tells her that he is considering disobedience; however, he does not believe it is 'good'. He asks her to tell him what he should do, but she refuses, reminding him that he had thought her help beneath him a short while before. She tells him to make his own decisions.
Castiel returns to the warehouse where Alastair was kept and finds out that a leaky pipe enabled Alastair to escape from the devils trap. Uriel arrives while Castiel is examining the trap. Castiel declares that he built the Old Enochian trap, and insists that a demon could not have defeated it. He demands to know the truth. Uriel admits that he was responsible for the deaths of the 7 angels, and that he wishes Lucifer to rise and humanity to be destroyed. He has been converting other members of the garrison to this viewpoint, and killing those that disagreed. Uriel attempts to recruit Castiel, but fails, and Castiel attacks him. Uriel fights back, bringing Castiel to his knees. Anna arrives clandestinely and stabs Uriel from behind, saving Castiel.
Castiel visits Dean in the hospital and confirms that Dean's actions in Hell resulted in the breaking of the first seal. When Dean asks why he was not left in Hell, Castiel responds that "the righteous man who begins it is the only one who can end it".
Sam and Dean have encountered Chuck Shirley, a man who has written detailed accounts of the Winchesters' lives. Everything Chuck writes seems to come true. When Chuck predicts that Sam will encounter Lilith, Dean, afraid for Sam, angrily insists on an explanation of the writings. He threatens Chuck with violence, but Castiel arrives to stop Dean and reveals that Chuck Shirley is a Prophet of God. His books will one day be known as the Winchester Gospels. As a prophet, Chuck must not be harmed.
Dean returns to his motel to find that Sam has burned the protective hex bags Dean made. He is seeking the confrontation with Lilith that Chuck foresaw. Frustrated, Dean threatens to leave Sam to his fate, but changes his mind and instead storms out into the parking lot. Desperate, Dean starts to pray and Castiel appears, pleased by the sign of faith. Dean asks for help in preventing what Chuck has predicted, but Castiel refuses to interfere directly, saying that what a prophet has seen will come to pass. However, Castiel explains that Chuck is watched over by an archangel that will annihilate any threat to the prophet, including a demon like Lilith. Dean thanks him and uses the information by putting Chuck in the same room with Lilith as she and Sam are about to fight. This causes the archangel to appear, and Lilith flees.
Castiel appears in a dream to Dean, and asks him to meet him in the real world because there is something he needs to tell him. When Dean and Sam arrive at the address provided by Castiel, they find signs of a violent confrontation. They encounter Castiel's vessel, Jimmy Novak, and determine that Castiel has been taken back to Heaven by force.
Castiel's vessel Jimmy Novak remembers little, but describes being possessed by Castiel as being "chained to a comet". Jimmy is anxious to return to his family. Sam and Dean try to prevent him from leaving, but Jimmy escapes. He returns home, but demons soon intrude, trying to capture the "empty vessel". Sam and Dean help the Novaks to escape, but the demons capture Jimmy's wife and his daughter, and offer to trade their lives for his.
Jimmy goes to meet the demons and is shot as a captive Sam and Dean watch. Suddenly Castiel returns, possessing Jimmy's daughter Claire Novak. She, like Jimmy, is an angelic vessel, having inherited the something "is in his blood" that made Jimmy a vessel. After defeating the demons, Castiel agrees to Jimmy's dying plea that Castiel use him as a vessel instead of his daughter.
As Castiel leaves, Dean asks him what it was he wanted to tell them, but Castiel rebuffs him, saying that he learned his lesson in Heaven. He doesn't serve man...or Dean, only Heaven.
After discovering that Sam has been drinking demon blood, Dean and Bobby imprison him in Bobby's Panic Room. Dean calls on Castiel, demanding to know if Sam is capable of killing Lilith. Castiel says yes, but that consuming the amount of demon blood required would make him inhuman. Castiel reiterates that the angels believe Dean can be the one to stop the apocalypse, rather than Sam, and asks if Dean will accept that role. Dean agrees for Sam's sake, and swears fealty and obedience to God and the angels at Castiel's insistence.
Later Castiel comes secretly into Bobby's house and uses his powers to release Sam's bonds and open the door to Bobby's Panic Room. Sam escapes, and Castiel leaves. Anna visits Castiel at a waterfront, and confronts him over his actions, but he says he is acting on orders. He tells her that she should not have come to see him, and she is taken captive by other angels.
Castiel and Zachariah hold Dean captive in the Green Room, waiting as the apocalypse approaches. Dean pleads with Castiel to let him see Sam, but Castiel refuses, saying that it is not advisable. The doors of the room are removed to prevent Dean's escape.
Later, after Zachariah reveals the angels' real plan, Castiel returns and apologises to Dean for deceiving him. Dean is angry, and argues with Castiel, trying to convince him to help stop the apocalypse. Cas initially refuses, arguing that they would all be hunted. They argue, and Cas leaves. He then returns abruptly, forces Dean against a wall, and signals for silence. Cutting his forearm, Cas draws a sigil on the wall in blood. Zachariah arrives to stop him, but Castiel places a bloody hand on the sigil and Zachariah is sent away. Castiel says he will take Dean to Sam to stop him killing Lilith - because her death IS the final seal.
Castiel and Dean visit Chuck Shirley, who has foreseen that Sam is at the Convent. An archangel arrives, and Castiel says he will hold it off and sends Dean directly to the Convent. Castiel and Chuck wait for the archangel as the house continues to shake.
Early in the episode, the Winchesters visit Chuck Shirley to discover what happened to Castiel when the archangel attacked at the end of 4.22 Lucifer Rising. Chuck reveals that Castiel was killed, that he exploded "like a water balloon of chunky soup".
After luring the Winchesters to their father's storage unit, Zachariah reveals that Dean is the archangel Michael's vessel. Dean refuses to act as a vessel, so Zachariah tries to coerce Dean's agreement by torturing both Dean and Sam. Suddenly, Castiel appears. He attacks the two angels Zachariah brought with him, killing both with an Angel Killing Sword. He then orders Zachariah to heal Sam and Dean, then leave. Zachariah complies.
Castiel informs the brothers that Lucifer is preparing to take a vessel and that they must be on their guard. He touches Sam and Dean, burning Enochian sigils into their ribs that will hide them from all angels, including Lucifer. When asked what brought him back to life, Cas does not answer, and vanishes.
Castiel calls Sam to find out where the boys are; he cannot locate them because the Enochian Sigils he etched into their ribs hide them from all angels, including himself. He meets them at the hospital where Bobby is being treated. He reveals that he is cut off from Heaven following to rebellion, and has lost some his powers, including the ability to heal. This means that he cannot help Bobby. He then says that in order to defeat Lucifer he plans to find God. He asks Dean for his amulet, which Cas says will burn hot in God's presence. Dean mocks Castiel's plan, and Cas responds angrily, detailing what he has done for the Winchesters and what he has lost as a result. Dean relents and gives him the amulet, with orders not to lose it.
I killed two angels this week. My brothers. I'm hunted. I rebelled and I did it -- all of it -- for you. And you failed. You and your brother destroyed the world. And I lost everything -- for nothing. So keep your opinions to yourself.
– Castiel, 5.02 Good God Y'All
Castiel visits Dean in a hotel room to ask for help. He wants Dean to help him find Raphael, the archangel who killed Castiel. Cas hopes to trap and interrogate Raphael, forcing him to divulge the location of God. Castiel also says that he is asking because Dean is "the only one who'll help me". Dean agrees to go along, but only if they drive. Cas and Dean arrive in the Maine town where Raphael was sighted and go to the local sheriff for information. Cas wants to tell the sheriff about Raphael, but Dean persuades him that the truth is not a good idea in this situation. He gives Castiel an FBI badge and straightens his tie.
After an awkward (and amusing) conversation with the sheriff, they discover that Raphael's vessel has been taken to a local hospital. Cas decides to trap Raphael using a very dangerous ritual involving holy oil obtained from Jerusalem. He admits to Dean that even though Dean, as Michael's vessel, will not be harmed, Castiel may not survive. Dean considers this, and asks Castiel what he would like to do on his last night on Earth. Dean throws out a few suggestions, and discovers from Cas's reactions that the angel is a virgin. In response, Dean takes Cas to a brothel. At a table in the bar area, Castiel looks terribly uncomfortable. Dean orders him to relax, to no effect. A girl comes over and Dean introduces her to Castiel. She leads the nervous angel to a back room, leaving behind a bemused Dean. A few moments later, a scream from the back sends Dean in search of Cas, who is being yelled at by the frightened prostitute. It seems that Cas tried to comfort the girl by telling her it wasn't her fault that her father ran away; it was because he hated his job at the post office. Dean laughs, and the two of them run as a pair of bouncers appear.
The next morning, Dean and Castiel place Raphael's vessel in a circle of holy oil in his room at the hospital. Castiel chants in Enochian to summon Raphael, then lights the oil. Raphael does not manifest, and hours later Dean and Castiel return to their base in an empty house. Raphael, occupying his vessel, is inside when they enter. He threatens to take Dean to Michael, but Dean lights a hidden circle of holy oil, trapping the archangel. Castiel and Raphael argue, with Raphael insisting that God is dead. Castiel refuses to believe him, and he and Dean leave Raphael trapped in the circle of fire. Later, Castiel says he believes God is out there, and that he will keep searching.
Castiel: Let's go.
Raphael: Castiel, I'm warning you. Do not leave me here. I will find you.Castiel: Maybe one day. But today, you're my little bitch.
– Castiel to Raphael, while Raphael is trapped in holy oil.
Castiel phones Dean, eager to meet up and search for the Colt, but Dean begs that he wait until morning. Castiel agrees and continues standing, rather forlornly, on the side of a highway.
Dean wakes in the morning to find that Zachariah has zapped him five years into the future, into 2014. In appears that in 2012, Lucifer's minions re-released the Croatoan demon virus. In this post-apocalyptic world, most humans have been reduced to murderous zombies. Dean goes in search of Bobby, and finds a photo showing that Castiel is at Camp Chitaqua. When Dean arrives, he finds that Future Dean, Future Chuck and other survivors are also there.
Future Castiel informs Dean that sometime after the Croatoan virus was released, the Angels left, and so did most of his angelic powers, so that Cas is now effectively human. He can however detect that Dean from 2009 is different from Future Dean. He is embittered at his situation and has immersed himself in "women and decadence". When Dean first encounters him, he is organising an orgy, and when Dean asks if he is stoned, he says "Generally - yeah".
Future Castiel is presumably killed during the attack Future Dean leads on Lucifer.
When Zachariah brings Dean back to the present, he once again asks him to be Michael's vessel. When Dean refuses, Zachariah is about to take him prisoner and torture him again, but Castiel intervenes, transporting Dean to safety at the roadside where Cas has been waiting. Dean comments on his good timing, and Castiel smiles, saying "we had an appointment".
Sam and Dean ask Castiel for help when they discover that Jesse Turner is a Cambion, the son of Julia Wright and a demon. Castiel insists that Jesse must be killed as he is incredibly powerful, even capable of "killing the Host of Heaven with one word". Because he can transport himself anywhere Jesse cannot be held prisoner, and though Jesse is not himself evil, Castiel is unwilling to take the risk that Jesse would choose to serve Lucifer. However, when he attempts to kill the boy, Jesse turns Castiel into a small action figure. Castiel is restored when Jesse leaves and goes into hiding.
When the Trickster traps Sam and Dean in an unending series of TV shows, Castiel tries to rescue them but is banished. When he reappears, Castiel is bloodied and bruised, and says he thinks it may be something more powerful than the Trickster - who appears and again banishes him. Finally, after the Trickster is revealed to be Gabriel, Dean gets him to bring Castiel back.
Castiel discovers the crossroads demon Crowley making a deal with a banker. He follows the demon to the house Crowley is occupying, and informs Dean of its location by phone, then reveals that the house is protected from angels by Enochian symbols. Sam and Dean recruit Ellen and Jo to help with the mission, and the four of them breach the house. Sam and Dean find Crowley and are shocked when he willingly hands over the Colt and the location of Lucifer.
The team regroups at Bobby's, and Castiel does shots with Ellen and Jo (after the latest 5 he declares that he's "starting to feel something"). The hunters prepare to take on Lucifer in Carthage, Missouri, and Bobby insists on taking a photo of them all so he has something to remember them by. The others laugh off Bobby's comment, but Castiel observes that "Tomorrow we hunt the Devil. This is our last night on earth".
When the team arrives in Missouri, Castiel sees Reapers everywhere. He follows one, trying to find out why they are there and is captured by Lucifer, who imprisons Cas in a ring of flaming Holy Oil. Lucifer describes Castiel as a "peculiar thing", and questions him about his arrival and who he has brought with him. He tries to convince Castiel to join him, because Castiel will be Heaven's target if Lucifer is defeated, but Castiel refuses. Lucifer leaves to finish his ritual, leaving Meg to watch over Castiel. Castiel manages to loosen the fittings on an overhead pipe and uses it to knock Meg into the flaming circle. Castiel tries to cast her out of her host, but finds that without Heaven's support he is unable to do so. Meg mocks him as powerless, and Castiel throws her onto the holy fire, walking over her to escape. He arrives in time to save Sam and Dean from Lucifer.
Anna comes to Dean in a dream, telling him that she has been held prisoner in heaven after being turned in by Castiel, but has escaped. She wants Dean to meet her, but instead of Dean, Castiel arrives. He does not believe she could have escaped on her own, having himself experienced "Heaven's persuasion". He accuses her of working for Heaven against the Winchesters. Anna denies this, but insists that Sam must die so that Lucifer cannot take him as a vessel. She fails to convince Castiel, who refers to Sam as his friend. He informs her that, despite their shared experiences, if she attempts to harm Sam, he will kill her.
Later, after informing Sam and Dean of the situation, Castiel performs a ritual to determine Anna's location. He discovers that Anna has gone back in time to kill Sam and Dean's parents. Sam and Dean insist that he bring them along, but Castiel protests that time travel is extremely difficult, even with Heaven's support. Because he is outcast, he tells them that "taking this trip, with passengers no less...it'll weaken me". However, he gives in to their continued insistence and packs a satchel containing holy oil and his Angel Killing Sword, then gives it to Sam. Cas touches the brothers' foreheads, and suddenly they arrive in the year 1978. Sam and Dean find Castiel slumped against a car, bleeding and breathing heavily. He insists that he is better than he expected to be, but then coughs up blood and passes out. Dean books Castiel into the honeymoon suite at a hotel to regain his strength while they fight Anna. Sam is concerned about Cas, but Dean describes him as "tough for a little nerdy dude with wings".
After Sam and Dean are returned to their time by Michael, Castiel appears in their hotel room. He does not immediately realize where he is, but when informed that he has made it back, he admits to being very surprised. He passes out, and the brothers drag him over to a bed to rest.
Sam and Dean investigate cases of people who abruptly kill themselves in odd ways near Valentine's Day. While examining the remains of the victims post-autopsy Sam notices an inscribed angel sigil on two of the hearts. Dean phones Castiel for angelic assistance. Cas appears directly in front of Dean while they are still on the phone. He recognizes the sigils as a mark of union placed on the victims by a Cupid, a lower angel called a Cherub. Castiel, Sam, and Dean go to a couple-filled restaurant, suspecting that Cupid will be drawn to the love-filled environment. While there, Cas asks to eat Dean's untouched hamburger, but before he can take a bite he senses the Cupid has arrived. Castiel traps Cupid in the back room of the restaurant and forces him to show himself.
Cupid manifests as a naked man and goes around giving Dean, Castiel and Sam enthusiastic hugs, lifting them up off the floor. Castiel informs them that this is the Cupid's way of shaking hands, and that no one likes it. The three interrogate the cherub about the strange deaths, and he begins to cry. Castiel tries to comfort him, earning another intense hug. The cherub then asks Cas to read his mind so that they will understand that he was not involved in the deaths. Cas agrees and makes eye contact with the other angel. After a moment he turns away, announcing that Cupid is telling the truth.
Later, Sam fights a demon and takes its briefcase. At their motel, Sam and Dean open the case and release a brilliant light. Castiel appears behind them, holding a paper bag of hamburgers, and explains that the brothers released a soul. As he eats the hamburgers, Castiel announces that Famine is in town and is causing the strange, starved behavior among the victims. Even Cas has been affected through his vessel, Jimmy, who craves red meat. Once strengthened by consuming souls, Famine will be able to march across the lands with authority.
Sam is incapacitated by his craving for demon blood, so Castiel and Dean search for Famine. Cas continues to eat, saying that the hamburgers make him very happy. They locate Famine, but Castiel is distracted by a tray of raw ground beef and Dean is captured. Sam arrives after killing two demons and drinking their blood. With his powers he is able to defeat Famine, but is then locked in Bobby's Panic Room by Dean and Castiel. Castiel tries to reassure Dean that Sam will be okay when the blood is out of his system, but Dean leaves.
Dean: What are you, the Hamburglar?
Castiel: I've developed a taste for ground beef.
Dean: Well have you even tried to stop it?
Castiel: I'm an angel, I can stop anytime I want.
– Background conversation, 5.14 My Bloody Valentine
Sam and Dean are killed, and Dean wakes up inside his Impala. Young Sam is there, and Dean realizes he's reliving a happy memory. When Dean remembers that he and Sam were shot, the memory disappears, and Dean hears Castiel's voice coming from the Impala's radio. Castiel tells Dean that he is dead and is in Heaven. He urges a confused Dean that he must follow the asphalt road in front of him if he is to find Sam. The connection between Castiel and the radio, made possible by a spell, fades, and Dean is on his own again.
Dean and Sam are reunited in a Thanksgiving memory of Sam's that takes place in an old girlfriend's house. Suddenly a bright light streams through the windows and shakes the ground, forcing Sam and Dean to hide behind furniture in the living room. When the light has passed, a TV turns on. Castiel's face appears on screen, and though the message is grainy and full of static, they can communicate. Castiel warns them "Don't go into the light," revealing that the light is actually Zachariah searching for them. Zachariah's goal is to send Sam and Dean back to Earth and convince them to say 'yes' to Lucifer and Michael. Castiel sends them on a mission to find an angel named Joshua, who resides in the center of Heaven, in Heaven's Garden. Joshua, according to Castiel, is rumored to be the angel that God speaks to, and their only chance of finding God on Earth. To find him, the brothers must follow the Road, the axis mundi, for it will lead them to Heaven's Garden. The Road weaves through Sam and Dean's memories, and they become lost and are eventually captured by Zachariah.
Joshua interrupts Zachariah with a message for Sam and Dean. He informs them that though God was the one who saved them from Lucifer and resurrected Castiel, God will not intervene to destroy Lucifer and stop the Apocalypse. Sam and Dean are returned to Earth with the knowledge that their last resort has failed. The brothers relay the devastating news to Castiel.
At first, unwilling to believe, Castiel suggests that maybe Joshua was lying. Sam regretfully assures Castiel that he believes Joshua was honest. Slowly walking towards the door, his faith broken, Castiel stops and looks up, murmuring,
"You son-of-a-bitch...I believed in..."
He pauses a moment before turning to Dean and returning his amulet, saying, "It's worthless," before disappearing.
And as Sam tries to console Dean, insisting that they will find a way to stop Lucifer. Dean pauses a moment as he leaves the room to throw the amulet away.
After being called by Sam, Castiel turns up in the brothers motel room. As he staggers forward, Sam asks if Cas is drunk. He denies this initially, then admits that he found a liquor store, then drank it. Sam asks if he his alright, and Cas motions for him to lean down and mutters "Don't ask stupid questions". When asked about the local prophet, Castiel reveals that the names of all the prophets are "seared" into his mind, and that her name is not among them. He helps the boys determine that they are dealing with the Whore Of Babylon and supplies them with a stake of cypress from Babylon with which to kill her. He also informs them that only a "true servant of Heaven" can kill the Whore, and that neither he, Dean, or Sam qualifies. Castiel finds the town pastor and brings him to the brothers, who explain the situation. The pastor is shocked, and wonders why an angel like Castiel could not kill the creature. Castiel responds that he is a poor example of an angel.
Outside the motel, Castiel sits on a bench and leans forward, rubbing his forehead. Dean tosses him a large bottle of aspirin, and suggests that he take them all. They talk briefly about absent fathers. Later, Castiel is injured when the Whore Of Babylon attacks him.
As Dean prepares to say yes to Michael, Castiel and Sam appear and take Dean back to Bobby's. As they argue over alternatives, Castiel is struck with a sudden pain. When asked if he's okay, Cas replies that "somethings happening" and vanishes. He arrives in a wooded area where the trees have been flattened by angelic power - the angels have resurrected someone. The ground in the center of the fallen trees pulsates and Castiel tries to help the resurrected man out of his grave. As he leans forward, an angel attacks him from behind. They fight, and another angel appears. Castiel manages to kill his assailants, and turns back to the figure struggling out of the ground. Cas pulls him out and transports him Bobby's. The others gather round, and it is revealed that the Winchesters half-brother, Adam Milligan, is the man. Castiel shields Adam with a set of Enochian Sigil. The Winchesters talk with Adam, who claims that he is supposed to act as Michael's vessel. Castiel suggests that the angels have decided that Dean will not say yes, and so are turning to Adam as a back-up as he is also John Winchester's son.
While Sam, Bobby, and Castiel try to plan their course of action, they keep an eye on Adam and lock Dean in the panic room. When Castiel goes to check on him, Dean tricks him into entering the room then puts his hand to a hidden Angel Banishing Sigil, sending Castiel away and giving Dean time to escape.
Once in town, Dean approaches a street preacher and asks him to call the angels so that he can assent to Michael. Castiel appears and touches the preacher, causing him to pass out. Castiel attacks Dean, beating him severely and raging that Dean is prepared to surrender after all the sacrifices the angel has made to help the Winchesters avoid the Apocalyptic battle between Michael and Lucifer. Lying on the ground, Dean encourages Castiel to kill him, but Castiel relents and taps Dean on the shoulder, knocking him out. Cas then takes him back to Bobby's, where it is discovered that the angels have taken Adam.
Castiel determines that Adam is being held in the Green Room, and that it is heavily guarded. Castiel takes Sam and Dean to an abandoned warehouse where he says they can access the Green Room. Castiel says he can get them in there, but must fight five angels to do so. Dean suggests that the idea is suicidal. Cas agrees that it may be, but says that is preferable to watching Dean fail, and that he doesn't have the faith in Dean that Sam does. He then removes his tie and takes a box cutter from his pocket.
Inside the dark warehouse, Castiel is attacked by an angel, but defeats and kills him. Four other angels appear, and Castiel drops his sword and yells at them to attack. As they close in on him, he rips open his shirt, revealing that he has carved an Angel Banishing Sigil into his chest. As he slaps his hand to it, it releases a bright flash and send away all the angels, including himself.
Dean receives a sudden phone call from Castiel, who disappeared at the end of 5.18 Point Of No Return and has not been heard from since. Cas informs Dean that he woke up in a hospital, much to the surprise of the doctors treating him, who thought he was brain-dead. He says that he was found on a shrimping boat off Delacroix sometime after banishing himself and the other angels. Dean tells him that he is with Sam and Bobby, and that Cas should transport himself there. Castiel replies that he cannot teleport because his "batteries are drained"; he is effectively a human. He asks for money for transportation and for "more pain medication, ideally", and Dean agrees to have Bobby send it. Before hanging up, Cas apologizes to Dean for losing faith in him and believing he would turn himself over to Michael.
Dean and Sam meanwhile go after Pestilence, who is using a nursing home as a base of operations. As they approach the room where Pestilence is located, they become stricken by a variety of diseases. When they find the room they need, they are unable to do more than collapse on the floor in front of Pestilence. At this moment Castiel shows up to help, having taken a bus to this location. He enters the room and is immediately struck down by Pestilence, who eyes him with curiosity. He refers to Castiel as an "occupied vessel...but powerless". He speculates that Castiel has no spark of angel left in him, but Castiel mutters maybe a little, grabs the knife dropped by Dean and lunges at Pestilence, managing to sever his ring finger. Cas, along with Sam and Dean, is healed, and he kills a demon that was accompanying Pestilence. The Horseman vanishes, saying that they are already too late.
Later, Castiel accompanies Sam and Bobby in an attempt to destroy a building containing the Croatoan virus, which is disguised as a swine flu vaccine. On the way, Castiel is filled in on Sam's idea to say yes to Lucifer as a means of getting him back into his cage. Unlike Dean and Bobby, Castiel does not dismiss the option, saying that it may be possible and that Sam and Dean have often exceeded his expectations in the past. He also tells Sam that Lucifer's vessel would need to be strengthened by demon blood. Castiel also informs Sam that Michael is now likely using Adam Milligan for a vessel.
At the vaccine shipping facility, Castiel saves Sam from an infected human, using a shotgun for the first time and pronouncing it effective.
Sam, Dean, Bobby, and the now quasi-human Castiel have committed to the plan to trap Lucifer and return him to his cage by allowing him to enter Sam. In preparation, they drain a group of demons and bottle their blood for Sam to consume. Next, the four of them travel to Detroit.
In Detroit, Sam says his goodbyes. He asks Castiel to look after Dean and Bobby. Cas states that the request is impossible, but then realizes that he is "supposed to lie". Sam and Dean go to confront Lucifer, and Sam says 'yes'. Lucifer enters him and takes hold, and Sam cannot force him into the cage. Lucifer departs, leaving Dean to return to Castiel and Bobby. Dean asks for suggestions on what to do next, and Castiel suggests they get drunk while they wait for the end. Dean refuses to give up, however, and contacts the prophet Chuck Shirley, who gives him the location of the impending battle between Lucifer and Michael. Dean heads for the location, Stull Cemetery near Lawrence, Kansas. He interrupts the two angels before the fight, insisting on a conversation with Sam, which angers Michael. Suddenly Castiel yells at Michael to get his attention, then hurls a Molotov cocktail full of Holy Oil at the archangel. Michael is engulfed in flames and vanishes. Cas tells Dean that he will return, but that Dean will have time to talk to Sam.
Outraged by Castiel's audacity in attacking Michael, Lucifer obliterates him with a snap of his fingers, then kills Bobby moments later. After Dean and Sam succeed, and Lucifer (as well as Sam) and Michael are imprisoned, Castiel returns. An astonished Dean asks the angel if he is God, and Cas says no, but he believes God brought him back. Cas's angelic nature has been restored, and his powers improved. Castiel heals Dean of his injuries and brings Bobby back to life.
Castiel leaves the cemetery with Dean, riding in the Impala. Dean asks Castiel about his plans. Castiel says that Heaven must be in chaos without Michael, and that he will return to help restore order. Dean is critical of Castiel's willingness to return to Heaven in the service of God after all they have been through. Castiel believes that God likely helped them more than they suspect. Before he leaves, Cas suggests that Dean even got what he asked for: "No Paradise. No Hell. Just more of the same. I mean it Dean. What would you rather have? Peace - or freedom?"
Sam tells Dean that after he came back from Lucifer's Cage, he prayed to Castiel in hopes that he could explain what happened. Castiel didn't answer, and he does not appear in this episode.
Following a string of deaths that resemble three of the Twelve Plagues of Egypt, Dean prays to Castiel in the hope that he will be able to answer some of their questions. Sam is certain that the angel will not appear, because Sam has prayed to Castiel several times since he escaped Lucifer's Cage a year ago without receiving an answer. Castiel appears behind Sam, and greets the brothers, much to Sam's chagrin.
Sam: Hello? Hello.
Castiel: That is still the term.
Sam: I spent all that time trying to get through to you, Dean calls once and now it’s hello?!
Sam: So what, you like him better or something?
Castiel: Dean and I do share a more profound bond. I wasn’t going to mention it.
Dean: Cas, I think what he’s trying to say is that he went to hell for us. I mean he really took one for the team. You remember that? And then he comes back without a clue and you can’t take five freaking minutes to give him some answers.
Castiel: If I had any answers, I might have responded but I don’t know. Sam, we have no idea who brought you back from the cage or why.
Castiel then goes on to explain that he came, not because Dean called him, but because the recent deaths have been caused by a powerful angelic weapon known as the Staff of Moses. He tells them that Heaven has been in chaos following the Apocalypse and the loss of Michael, and several of Heaven's weapons have been stolen. He asks the Winchesters for their help in finding the Staff. Together, the three of them visit the family of a boy who was murdered and then framed by the recent plague victims. They soon discover that the boy's brother, Aaron, has a piece of the Staff. Castiel takes the Staff fragment from him and Aaron explains that he sold his soul to an angel in exchange for the weapon. Castiel insists that they must find the angel and the other pieces of the Staff.
Castiel teleports Sam, Dean, and an unconscious Aaron back to the brothers' motel room. He reveals that he can read the unknown angel's mark within the boy, but notes that it will be excruciatingly painful for Aaron. Dean objects, but Sam agrees that it is necessary. Castiel proceeds, and discovers the angel is Balthazar, a close friend of his who was believed to have died during the war. Before Castiel can make sense of Balthazar's actions, an angel appears and attacks him. The two fight and fall out a window, landing on Sam's car, crushing it. Castiel recovers and the second angel departs. Castiel explains that the other angel is a servant of Raphael, who is free and has gathered a following of traditionalists who wish to restart the Apocalypse. Sam surmises that the angels are in a state of civil war; Castiel admits that this is the case, and that he is ashamed of his brothers' actions. He then conducts a spell to locate Balthazar, and transports the three of them to his location.
Castiel ventures into Balthazar's suite alone and confronts him about his conduct. Balthazar explains that he is simply following in Castiel's footsteps by making his own decisions and doing whatever he likes. Castiel demands he return the stolen weapons, but Balthazar declines. They hear an indication of Raphael's arrival, and Balthazar disappears. A hostile angel attacks Castiel, who pleads for him to stand down, but is forced to kill the other angel. Raphael appears and beats Castiel mercilessly, throwing him down a flight of stairs. Just as Raphael is about to kill Castiel, Balthazar reappears and destroys Raphael's vessel using Lot's Salt. He remarks that Raphael will be too preoccupied looking for a new vessel to pose a threat anytime soon.
Before Balthazar can leave, Dean lights a hidden ring of Holy Oil, trapping the angel. Dean demands the return of Aaron's soul. Balthazar is furious, but agrees when Castiel refuses to interfere. After he releases the soul, Castiel frees Balthazar before Dean can demand anything else, declaring that his debt to the second angel is cleared. Balthazar and Castiel vanish.
When Dean discovers that an antique horn was recently stolen from a local music store, he theorizes that it is an angelic weapon, Gabriel's Horn of Truth, and is causing the disruption in Calumet City. He prays to Castiel, who appears immediately when Dean mentions the possibility of a holy weapon being in town. Dean is angry with him for only answering when it's in Castiel's own interest to do so, because Dean has been calling Cas for help with Sam. Dean is afraid that Sam may still be possessed by Lucifer, but Castiel tells him that the angels would feel it if Lucifer were free. He picks up a bottle and pours Dean another drink. Castiel once again tells Dean that he doesn't know what's going on with Sam, and reminds him that he is fighting a civil war.
Dean: What is wrong with him?
Castiel: I don't know Dean. I'm sorry.
Dean: What happened to you Cas? You used to be human, or at least like one.
Castiel: I'm at war. Certain regrettable things are now required of me.
Dean starts to explain his theory about the Horn, and Castiel disappears before he can finish. He then reappears two seconds later and announces that the Horn of Truth is not causing the disturbance because it is not in town; he knows because he looked everywhere. Before he goes again, he tells Dean that he does want to help with Sam and that he'll make some inquiries.
Dean calls Castiel for help immediately following the events of 6.06 You Can't Handle The Truth. Sam is tied to a chair and still bloody from Dean's pummeling. Castiel takes the opportunity to ask Sam a few questions. He quickly discovers that Sam is no longer sleeping or feeling any emotions, which worries him, so Castiel performs a ritual similar to the one he used prior on Aaron Birch. He reaches inside Sam's abdomen with his angelic powers, and, as it is an extremely painful experience, he has Sam bite down on his belt. What Castiel learns from the examination is that Sam's soul is missing and is likely still in Lucifer's Cage. With no other clues, they decide to head to the Campbell Compound and question Samuel Campbell, who came back from the dead at the same time that Sam escaped Lucifer's cage. Before they leave, Dean has Castiel heal Sam's earlier injuries.
At the compound, Dean questions Samuel about his resurrection, but Samuel reiterates that he doesn't remember anything before waking up alive. Dean insists that Samuel talk to their 'wingman', and Castiel appears beside Samuel.
Samuel: This Castiel? (to Castiel) You're scrawnier than I pictured.
Castiel: This is a vessel. My true form is approximately the size of your Chrysler Building.
Dean: Alright, alright, quit bragging.
Castiel tests Samuel to see if he still has a soul - he does - and Castiel leaves shortly afterward. Before goes, though, he promises Dean that he will be on the lookout for something to help Sam regain his soul.
Sam prays to Castiel, and when the angel does not answer, claims that he has found the Lost Ark of the Covenant. Fooled, Castiel appears to Sam and asks where it is, but is met with hostility and derision because he is unaware that Sam was referencing Raiders of the Lost Ark. Sam demands that he help them track down Crowley. Castiel informs Sam that he is in the middle of a battle but Sam doesn't care and threatens to kill Castiel if he does not help him. Castiel simply replies "You need help", but agrees to assist nonetheless by performing a spell to locate Crowley. The spell fails because Crowley is shielded. Castiel then accompanies Sam and Dean to Samuel's office in the Campbell Compound, but is asked to leave when Samuel catches them so that the family may discuss matters in private. He is later seen watching a porno and struggling to understand it while Sam and Dean do research at their hideout.
Samuel comes around and tells them where they can find the demonic prison housing the monsters, though he refuses to take part in the attempt on Crowley. Outside, they meet with Meg and three of her demon cohorts. Castiel is displeased with the notion of working with an "abomination", Meg in particular. There is a confrontation in which Sam kills one of Meg's associates, but they agree to proceed together. Alone with Dean, who is preparing for the mission, Castiel suggests that forcing Sam's soul back into his body could have catastrophic consequences for him, as Lucifer and Michael will no doubt have spent the last year tormenting him. Dean is convinced that restoring his brother is the right thing to do, however. The group infiltrates Crowley's base, a disused prison protected by demons, hellhounds, and spellwork.
Inside they are attacked by hellhounds, losing the other two demons following Meg before blocking the dogs behind a locked door and a line of salt. Deciding that she would have the best chance of holding them off, Meg tells the brothers and Castiel to find and kill Crowley. Suddenly, she kisses Castiel passionately while reaching inside his coat. To everyone's surprise, Castiel reciprocates, apparently inspired by the porno he saw earlier. When they pull away from each other, Meg is holding his Angel Killing Sword. Castiel does not object, and leaves with the brothers while Meg uses the weapon to fight the hellhounds. Castiel is not with them for long, however, as Samuel banishes him with a blood sigil.
In his absence, the Winchesters and Meg eventually manage to catch Crowley in a devil's trap, but he escapes and overpowers them all. Castiel reappears suddenly, holding a burlap bag that contains Crowley's bones. He demands to know if Crowley can genuinely retrieve Sam's soul from the cage, and the demon admits that he cannot. Castiel burns Crowley's bones with a wave of his hand, and the demon is destroyed.
At Dean's request, Castiel agrees to dispose of the remaining monsters within the prison. He then disappears after admitting that he is on the losing side of the war against the archangel Raphael.
Sam is still unconscious over a week after Death returns his soul. Dean calls Castiel, who reads Sam's soul in the panic room. He confirms that the soul is there, but when Dean asks if Sam will ever wake up, Castiel is doubtful. He says that Sam's soul feels "skinned", and he is critical of Dean's decision to have it returned. He even tells Dean that if he wanted to kill his brother, there were other ways.
After Sam awakens, he has no memories of the past year. Dean is not willing to tell him the truth, but Sam begins to suspect that something happened during the missing year. He prays to Castiel while Dean is away. Cas appears, and rejoices to see Sam awake and alright. He even tries to hug Sam, but when Sam hesitates, Cas realizes that a hug would be awkward. The angel tells Sam that what has happened is nothing less than a miracle, and admits that he was against Dean's choice. He asks Sam how it feels, and when Sam asks what he means, Castiel reveals that Sam's soul has been put back. Sam realizes that he must have been on Earth without his soul, but hides his surprise from Castiel. Sam then says that he is a little confused about some things, and asks Castiel to talk with him about some of the things that have happened during the last year and a half. Castiel does so.
Balthazar appears to Sam and Dean, telling them that Raphael is trying to kill all of Castiel's allies in one night, and that "Cassie" is underground. He gives them a key to the Angelic Weapons he stole, then conducts a ritual. Sam and Dean are thrown into an alternative universe in which they are actors named Jensen Ackles and Jared Padalecki on a show called "Supernatural". On the television backlot, Dean prays to Castiel for help. Spotting what appears to be Cas a moment later, they rush over to talk about what has happened, only to find that it is not Castiel, but Misha, the actor that plays him on the show.
The brothers are eventually pulled back into their universe by Raphael, who was trying to bring back his assassin Virgil. Balthazar arrives, and reveals that the key he gave them is fake, and he was playing for time to move the weapons. Raphael threatens the Winchesters, but Castiel arrives. The shadows of his wings flicker on the building behind him as he tells Raphael that the "power of the weapons" is with him, and that he will kill the archangel if he remains. Raphael vanishes. Balthazar also leaves after a parting word to Castiel.
Castiel goes to the brothers and touches their shoulders, transporting them and himself to Bobby's house. Dean demands to know if Castiel was involved in Balthazar's plot to use them as decoys. Castiel says that he was not, but that if necessary he would also have used them as a distraction. Dean is angry, but Castiel reminds him again that if his side loses to Raphael, everyone loses. The brothers want Castiel to tell them about what is really going on in the war. He says that he will when he can. Then he disappears.
After Balthazar prevents the Titanic from sinking, Sam and Dean approach Atropos, one of the Fates, who is killing off the descendants of the survivors that should have died. She sets a a trap for them, but they are saved at the last instant by Castiel, who transports them to Russia. He thinks that they are foolish to have tried to speak with Atropos, who is furious with them for having averted the Apocalypse and making her obsolete. He knows Atropos, and suggests that the only way to save them and the Titanic survivor descendants is to kill her, when she next tries to strike Sam and Dean.
When she does attack the brothers, and time freezes, Castiel appears. He tells Atropos that her services are no longer required, and that freedom is the better way. She is furious with him over his role in the Apocalypse and even more so over what Balthazar has done to history. Castiel suggests that Balthazar acted on his own whim, but Atropos accuses Castiel of having given the order to 'unsink' the ship. She says that Balthazar follows him, and that they were intent on creating new souls for the war in Heaven. Castiel answers her accusations evasively.
Atropos blackmails him with the lives of his "pets" - Sam and Dean. She will kill them if he does not restore the natural order, and if he kills her, her sisters will take care of the brothers. She knows that Castiel will not always be able to guard them because of the war. Castiel orders Balthazar, who has snuck up behind Atropos with a knife, to stop. He agrees that they will go back and sink the ship - again.
When Sam and Dean wake in the restored universe, they remember the alternate one as a dream. Castiel tells them it was not a dream, and he wanted them to remember their encounter with Fate. She is capricious, and he still believes that free will is worth fighting for. Dean asks if Balthazar really tried to change history because of a movie. Castiel hesitates and looks away, then says yes, that was the reason.
Dean prays to Castiel for his assistance in time traveling. He is surprised when Rachel appears instead. She says she is Castiel's friend and that he is busy with his troops, then berates Sam and Dean for calling Castiel only when they need something from him. Castiel arrives and dismisses Rachel, who is his lieutenant, saying he will handle the matter himself.
He agrees to send the brothers back to 1860 so that they can find Samuel Colt and the ashes of a Phoenix, but warns them they have only twenty-four hours. If they stay longer he cannot retrieve them. After the brothers are gone, Castiel tells Bobby to pray for him as the deadline approaches, and he will return.
Later, Castiel meets Rachel in a warehouse. She demands to know if his "dirty little secret" is true. Castiel replies that he is fighting a war. Rachel attacks him with an angel sword, stabbing him in the abdomen. Castiel fights her off and pulls his own sword. They struggle, and Castiel kills her; he murmurs "I'm sorry." Still injured, he retreats to Bobby's place and draws a sigil in blood on Bobby's refrigerator door to ward off other angels. Bobby tries to help him, and Castiel passes out.
When he awakens on Bobby's sofa, it is nearly time to bring back Sam and Dean. Castiel tells Bobby that Rachel turned on him, corrupted by Raphael. When Bobby asks him about the Winchesters, Castiel says that he is too weak to pull them back on his own. Bobby asks what they can do, and Castiel replies that the only option would be for him to touch Bobby's soul, and tap its energy. If he does it incorrectly, Bobby will explode. Bobby agrees for Sam and Dean's sake. Castiel reaches into Bobby's chest, and after a few moments Sam and Dean return.
They did not get the ashes, and ask Castiel to send them back, but he lacks the strength, and says he never wants to do that again. Fortunately, Samuel Colt gathered the ashes and arranged for their future delivery.
Bobby, Sam, and Dean need to find Eve, and intend to ask Castiel's assistance. Before Dean can call on him, Castiel appears to ask about their progress. He cannot locate Eve himself, so Sam suggests that they try to find one of the few helpful monsters they have encountered over the years. Castiel finds Lenore, and brings her to Sam and Dean. She reluctantly gives up Eve's location, then asks to be killed because she can no longer resist the urge to feed. The brothers are hesitant and try to persuade her to wait until after Eve's death, but Castiel appears behind her, places a hand on her head, and incinerates her.
Castiel transports Sam, Dean, Bobby, and himself to the city in which Eve is hiding. At the local diner, he discovers that his powers are being blocked by some outside force. Irritated, Dean calls him a "baby in a trenchcoat" without powers, and Castiel seems hurt by the comment. They pair off to search the town. Cas and Dean look for the local doctor, who reported a strange illness, but find the body of the infected patient instead. They regroup at the residence of the infectee, but Castiel soon observes that there is another person inside who looks exactly like the victim. Inside are more dead copies of the man. Before dying, one of the copies reveals that they had encountered a strange woman at a bar.
The four go to the bar to investigate and find dozens of bodies, some of them new monsters. They are interrupted when police officers burst inside. Dean hides, but Cas, Sam, and Bobby are arrested. At the station, they discover the officers are monsters. Dean attacks by surprise and between the four of them they manage to kill all but one, which they take prisoner. Cas watches while Bobby interrogates the monster. Sam and Dean find two boys tied up in a cell, and decide to take them to their uncle's house. Castiel argues that they have bigger concerns, and that the brothers should remain, but they decide to leave nonetheless.
Bobby continues the interrogation, until Castiel asks him to leave the room for five minutes. Outside, Bobby hears screaming. Castiel emerges with Eve's location, and wipes his bloody hands on a towel.
Eve is at the town diner. Sam and Dean go inside while Bobby and Cas wait as back-up. In the diner, Eve tells the brothers that Crowley remains alive and killing, and offers to let them live if they will bring him to her. Her monsters capture Cas and Bobby and bring them into the diner. Dean refuses to give in, telling Eve to "bite" him. She takes him at his word, biting his neck and drinking his blood. She is poisoned because Dean ingested phoenix ash. Her death releases Castiel. He orders the humans to shield their eyes, then raises his hands and emits a blinding flash that kills the monsters. He heals Dean, then takes them in pursuit of the two boys they 'rescued' because they are monsters.
The boys have been killed by demons. Sam and Dean reveal what Eve said about Crowley, and Cas says he will investigate. After he is gone, Sam and Bobby express their doubts about how Crowley could be alive if Cas were not somehow involved.
At the diner, Castiel looks at the bodies. Crowley approaches him, saying he is tired of cleaning up Castiel's messes.
Sitting in his favorite Heaven, the Tuesday afternoon of an autistic man who drowned in a bathtub, Castiel prays, and tells his story. He remembers a time before humanity, watching a special little fish by the seashore. He remembers the Tower of Babel, David and Goliath, and Sodom and Gomorrah. But to him, the most important event in all of history was when Sam, Dean, Bobby, and Castiel himself stopped the Apocalypse. It was a moment when he made the choice to stand up for himself and his friends, had died for it, and been brought back by God. Castiel decided to go to Hell again, this time to save Sam. He returned him to Earth, and was proud of having done so, but not all of Sam came back.
When he returned to Heaven, and told the other angels that God had given the freedom and free-will, they were confused and frightened. They did not know what to do. A few weeks passed, and Raphael summons Castiel to an audience. He orders Cas to swear loyalty to him or die, and that they will then free Michael and Lucifer. Castiel insists that the battle should not happen, and that he will not let Raphael free them. Raphael assaults Castiel in a show of power, leaving him bleeding on the ground, and reminding him that tomorrow he will swear to obey.
Castiel goes to Dean, and watches invisibly as he rakes leaves. Castiel needs help, but thinks that after all Dean has sacrificed it would be wrong to ask for more. As he continues to watch, Crowley appears beside him. He asks to speak with the angel about the situation, and hints at a possible deal. Castiel rebuffs him, saying he has no soul to sell. Crowley persists, and Castiel, believing himself to be safe from the demon's machinations because he is, after all, an angel, goes along. He later admits that he may have been a fool to do so.
Crowley takes Castiel to the remade Hell he rules, where instead of being tortured, everyone stands in line eternally. Crowley knows the situation with Raphael, and Castiel is prepared to given in rather than die. Crowley suggests that God brought Castiel back for a reason, and that reason was most likely to prevent just this. He should fight back. Castiel is hesitant to start a civil war, especially as he lacks the power to fight Raphael. Crowley has an idea for tapping the untouched well of souls in Purgatory. They could split the souls they find there, so that Castiel can do what God must have intended, and Crowley can strengthen his own tenuous position; he feels he is a better ruler for Hell than most, especially where Castiel is concerned. Castiel hesitates, saying that Crowley's plan would take months, and he has only a day. Crowley tempts him with one more offer: 50,000 souls from Hell to use in facing Raphael. Castiel agrees, and admits to being "prideful" when he banished Raphael the next day, and started the war.
He has been working with Crowley ever since, and the Winchesters are suspicious. Castiel still thinks of himself as their protectors. After Eve's death Crowley and Castiel discuss matters over her body. Crowley is angry that she was killed, as there is little she can do to open Purgatory for them as a corpse. He yells at Castiel for putting his "pets" first, and thinks they should just be killed to simplify matters. Castiel refuses, and threatens Crowley if he dares to hurt them.
Castiel, unseen, watches the Winchesters and Bobby as they hunt Crowley through his minions. They also discuss whether or not Cas is "Superman who's gone darkside". They find out about a demon named Ellsworth who will know Crowley's location, and head out, but Castiel gets there first, killing the demons and getting rid of the evidence. He does not know if he did it to protect the brothers or himself. He watches in hiding as his friends puzzle over the empty house, and does not answer when they pray to him. Three of Crowley's demons attack, and Castiel shows himself, killing them. He admits to Sam, Dean, and Bobby, that Crowley is alive, and he is not sure how he could have been tricked. Their fears are eased, and they say that they had suspected Castiel. Castiel says it would be ridiculous for him to work with Crowley, for "Superman" to go evil. He does not realize his error. Castiel addresses Crowley again, making his point about the Winchesters' safety more strongly.
Later Sam, Dean, and Bobby summon him, and trap him in a ring of holy fire. Dean asks him directly if he has been working with Crowley, and Castiel cannot bring himself to lie. They are angry with him. Castiel tries to defend his actions, saying he has done this for them, and that he rescued Sam. Sam is not consoled, and reminds him he did a poor job. Dean tells him that working with a demon is wrong no matter what, and that he should have come to them. Castiel knows that he could have benefited from Dean's advice back then. A cloud of demons approaches and Castiel tells them to run. They do, and Crowley appears to Cas. He did not harm the Winchesters, and he frees Castiel. He tries to remind Castiel of their goals, but Castiel is angry and does not want to be in his presence. Crowley accuses him of not recognizing what he has become.
Castiel comes to Dean at Bobby's house. Dean says once again that it is a bad idea for Castiel to work with a demon, and asks him to stop. Castiel is like a brother to him, one of the three people he holds most dear. But he will stop him if he must. Castiel thinks there is little Dean, as a human, can do. Dean reminds him that he has had success with stronger adversaries. Nonetheless, Castiel feels compelled to continue fighting his way. Both are sorry to have come to this.
In his favorite Heaven, Castiel finishes his story. He begs God for a sign, for some guidance about whether he is right or wrong. Otherwise, he will do whatever is necessary to win this war.
Castiel has taken one of the Campbell diaries, and is investigating an incident in which H.P. Lovecraft opened a portal to another world. He gets to two sources just ahead of Bobby.
Sam prays for him, telling Cas that Lisa and Ben have been kidnapped by Crowley, and asks for help. Castiel listens unseen, and does not answer, but goes to confront Crowley. He insists that the demon not harm Lisa and Ben, but Crowley refuses to make such a promise. He tells Cas to continue investigating, and the angel receives a summons, then leaves.
Balthazar has called him. He asks Cas if he is working with Crowley; Cas lies that he is not, but Balthazar is not fooled. He is concerned that Castiel will act as the vessel for the souls if he manages to unlock Purgatory, and could explode, destroying part of Earth. Castiel asks if he is with him, or not. Balthazar says he is.
Castiel goes to Dean, arriving just in time to save him from a demon. He apologizes for Lisa and Ben, revealing that he did not know Crowley's plan. Dean is skeptical, and angry. Castiel asks him again to support his decision to tap the souls in Purgatory. He pleads with him that he has always done what the brothers needed him to, asking little in return. Cas asks them to trust in him, and promises to bring him his family afterward. Dean is unwilling, and Castiel leaves.
After Dean and Sam rescue Lisa, Castiel comes to the hospital where the gravely injured Lisa is not expected to survive. He apologizes again, but Dean is not forgiving. Castiel says that he did not a come for Dean, then places a hand on Lisa's forehead, healing her. Both Dean and Cas acknowledge that this does not change their situation, but Dean asks for an additional favor. Castiel removes all Lisa and Ben's memories of Dean.
Later Castiel finds and takes Dr Visyak, the creature he needs to open Purgatory.
Castiel and Crowley torture Dr Visyak un til they obtain what they need to open Purgatory. She escapes and contacts Bobby and the Winchesters, telling her story before dying in an alley. Castiel comes to the three hunters, who are outraged. Dean tries to argue with him again, but Cas cuts him off, saying he no longer cares about Dean's opinion. He then touches Sam's head, breaking the mental wall, and promising to repair him as long as Dean stops the opposition.
Castiel meets with Crowley, who has assembled the necessary ingredients. The angel wants to renegotiate their deal. He will not give Crowley the souls, so Crowley can either flee or die. The demon leaves Castiel with the blood for the ritual.
Later, Castiel confronts Balthazar. He says that Dean is coming, and someone among them is a traitor. Balthazar asks him who it is, and Castiel lies that he does not know, and wants Balthazar to investigate. While the other angel is distracted, Castiel stabs and kills him.
Just before the ritual is meant to begin, a cloud of demons descends around the building, and Crowley appears. Castiel tries to kill him, but cannot. He has a new partner in Raphael. Castiel is surprised at the partnership with their differing goals, but both seem to think they have taken the best course available. They demand the blood; Castiel throws them a jar and leaves.
Crowley conducts the ritual, and though Bobby and Dean try to interrupt, completes it. Nothing happens and Castiel reappears. Crowley realizes that he switched the blood, and conducted his own ritual. Castiel displays his power briefly in a flash of energy. Crowley disappears, and Raphael asks for mercy. Castiel snaps his fingers, obliterating Raphael.
He turns to Dean and Bobby. He was right, he says, and did save them. Dean nervously agrees, then suggests that Castiel should return the souls, and disarm himself. Castiel says he has Raphael's followers to deal with. Dean is worried, and reminds Castiel that he is family, and he doesn't want to lose him. Castiel says that he has no family anymore; he will not give up the souls. Sam stabs him from behind with an angel sword, but nothing happens. Castiel greets him, then says the sword will not work because he is not an angel anymore. He says that he is their new God, and that they must venerate him, or be destroyed.
Castiel waits for Sam, Dean, and Bobby to show their respects. Bobby goes to his knees, and motions for Sam and Dean to do the same. Dean begins to kneel, but Castiel stops him, and orders Bobby to stand, saying that there is no point if they do not mean what they do. Castiel observes, without turning to look, that Sam is not doing well. Dean reminds Cas that the former angel promised to fix Sam when it was over. Castiel cuts him off; his promise was contingent on Dean not opposing him further, and oppose him Dean did. Castiel tells them he has no need to kill them, though he no longer has any regard for them, and will let them live if they do not plot against him.
Castiel sets out to right the wrongs he sees. He destroys Raphael's followers in Heaven, and tells the angels that he no longer thinks free will is what Heaven needs. Instead, he will give them a firm hand. He appears in a church, reveals his identity, and smites a hypocritical preacher. He leaves an image of himself in the stained glass as he departs, and accidentally burns a pew as welts appear on his hand. He finds Crowley hiding in a RV, and tells him that he may retain his position as King of Hell, but that Castiel will choose which souls he receives. He leaves after looking at yet more open places on his skin. He gives money to a blind man on the street, and heals the man for his faith. The man is grateful, but surprised when his first sight is of Castiel's blistering face.
Castiel looks at himself in a mirror, growing concerned. He hears a voice inside him calling his name; it wants to come out, it wants him to let it out. It pushes at his skin from the inside. Castiel says no.
Sam, Dean, and Bobby summon Crowley, who reluctantly gives them a spell to bind Death. They work it, and an irritated Death appears, followed shortly by Castiel. Dean orders Death to kill 'god'. Death says he sees only a mutated angel, one whose vessel is disintegrating. Castiel, sounding uncertain, says he will heal himself when his works are complete. Death replies that Castiel swallowed Leviathans when he emptied Purgatory, not just souls, and that is the danger. Castiel frees Death from Dean's binding spell.
Castiel leaves. At a political election office campaigning for a senator of whom Castiel disapproves, he is stopped by one of her aids. Castiel asks the man to see that he is a good god, that he means the best for his children. He awakes some time later in a pool of blood on the floor. He has slaughtered the entire office.
At Bobby's place, Sam prays for Castiel to reconsider and give up the souls. A few minutes later Castiel appears, disheveled, bloody, and looking ill. He says he needs their help.
Back at the laboratory, they work the ritual to open Pugatory. Castiel is growing weaker and weaker, and Dean has to stand him up in front of the portal. As it opens, Castiel turns to Dean and says he is sorry. The souls leave him through the portal, and he collapses.
Dean and Bobby cannot find a pulse, and fear him to be dead. After a moment, Castiel's face heals, and he awakens. Dean and Bobby stand him up. He thanks them for their help, but Dean says they were trying to save the world. Castiel promises to find some way of redeeming himself before Dean. Dean is dismissive, and Castiel insists more firmly. They start to leave, but Castiel doubles over in pain, yelling that something held on inside him and did not leave.
His body is overtaken by Leviathan, who tells them that Castiel is not there anymore. He says the angel is dead.