Ever since The CW’s Supernatural first introduced the angel Castiel (Misha Collins) in the season-four premiere, he has been vitally important in the overall mythological story arc for the elder ...

"Supernatural" star Misha Collins talks about Castiel's deal with the Empty, final season sacrifices, and his final words in the series.

Claire (originally played by Sydney Imbeau) was previously featured in Season 4’s “The Rapture,” which focused heavily on Castiel’s vessel, Jimmy Novak.