- Bobby lives in West Virginia.
- Gathering from the wealth of books in his house and his dialogue and role in Devil's Trap, is somewhat of a demonology expert.
- Gathering from the car bodies in his extensive yard, his day job (or hobby) is as a wrecker.
- His dog is called Rumsfeld, a reference to the US Secretary of Defense, Donald Rumsfeld.
- John Winchester and Bobby are not necessarily on good terms (Dean comments that the last time Bobby saw John he nearly "filled him with buckshot").
- The name 'Bobby Singer' is a reference to Supernatural's executive producer, Robert Singer.