Supernatural entered entirely uncharted territory in the last 10 second of the season 9 finale, and it remains to be seen what the other two-thirds of Team Free Will will think of Dean's new lease on life.

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Now that Dean has acquired a shiny new pair of black eyes, will Sam (Jared Padalecki) or Castiel (Misha Collins) be able to devise a plan to save him? Castiel's grace is on the fritz, but he has proven that he would give up anything if it meant saving the Winchester boys.

"Well, I think Cas has demonstrated that he's willing to sacrifice quite a lot, like an entire army, the save Dean," Collins said at the fifth Jus In Bello Con at the end of May, later explaining how he thinks Cas will take the news regarding Dean's demonization. "I think that Cas will react when he sees Dean...[by being] happy that Dean's alive and then he'll be sad that Dean's a demon."

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While Crowley was aware of the story about how Cain died and became a demon, Collins believes that this is not something Castiel would have known. In short, the angel will be more than a little surprised to find that his friend his not quite dead.

"I think that he really thought that he was dead," Collins stated at Jus In Bello V. "That's what I thought he thought."

Find out how Sam and Cas will deal with Dean when Supernatural returns to The CW this fall.