Last season's Supernatural cliff-hanger left the fate of Crowley (Mark Sheppard) up in the air when Castiel (Misha Collins), compelled by a powerful spell, attacked him. At the Comic-Con panel for Supernatural, Sheppard wouldn't reveal whether Crowley lived or died, but later, co-producer and writer Andrew Dabb slipped up. Could this mean the long-awaited return of Jeffrey Dean Morgan as Papa Winchester?