Sera Gamble told us in an interview months ago that Misha Collins would be returning so no one has "wised up". However, no one said he would be returning as Castiel he could be returning as Jimmy Novak or as a Leviathan clone or some other character all together. But Castiel has a lot to make up to Sam too not just Dean. He claimed that he only needed the weapons of heaven to win the war against Raphael but then he made a dirty deal with Crowely over the souls in Purgatory which released the Leviathans which shot Bobby and killed innocent people. It was also Cas who broke Sam's wall, and killed Balthazar. How is this not evil?
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