Whether or not some of the cast supports it or fans believe its validity is irrelevant. It's right there in the script to live forever in the show. Is Castiel's immediate death after his confession what fans wanted? Of course not. But the scene is more than anyone ever expected, so we can chalk that up in the win column — though we have a long way to go.
At the mention of Castiel's love confession in "Despair," Collins revealed that he was just as surprised as fans that this was even a possibility for his "Supernatural" character. "Like much of the audience, somehow, I didn't think that such a, frankly, butch, heteronormative show on a broadcast network would have a character's ending be what my character's ending was," he explained. "When Bob Berens, who was a producer on the show and the writer of the episode in which my character dies, proposed this ending where my character confesses his love for Dean, who's one of the two main characters, I was like, 'Oh, we can do that? That's amazing.'"
