Castiel is human. The gates of hell are still open. Castiel does not have an anti-possession tattoo. That means castiel can get possessed by a demon
My roommate and I just had this conversation via Skype. I told her she was lucky she was far enough I couldn’t throw things at her.
But it makes sense. Cas has already been angel, god, leviathan, human, Misha, and crazy. Demon is next.
