|Dates||Before humanity - 2014 (killed by Metatron)|
|Episode(s)||9.22 Stairway to Heaven|
Josiah was an angel and follower of Metatron who was planted in Castiel's ranks as a mole. His human vessel was named Sean Flynn and was from Omaha, Nebraska. He was thought to be behind the angel suicide bombing that killed six humans and two angels at the Colonel Scoop's Ice Cream Parlor and Deli in Dixon, Missouri.
When Josiah becomes the prime suspect for the angel suicide bombing in Dixon, Missouri, Sam and Castiel are able to track Josiah to a Gas-N-Sip in Colorado, where they learn from the store clerk that he was headed to an address in Pray, Montana. When Sam and Cas arrive at the location of Josiah, they believe to have found Metatron's secret doorway to Heaven, however upon entering they learn it was a ruse and find the charred body of Josiah slumped in the corner of the room, having been doused with holy oil and set aflame by a flame thrower above the doorway of an entrance. Josiah surprises Castiel by revealing himself to still be alive, telling him that after killing Ezra Metatron told him to come to him and that he would be able to reenter Heaven. When Castiel offers to heal Josiah of his wounds, Josiah refuses telling him he would rather die than owe his life to Castiel. He then succumbs to his injuries and finally dies.