"MR: Can you talk a little bit about Sam and Dean? Between them, is it pretty rocky or do they just kind of move on and go back to hunting together? Do you have it mapped out?
EK: Yeah, we certainly have the main emotional sweep of the season mapped out. Sam's part for the season is primarily one of redemption. He has a lot of wrongs to set right. For Dean, it's a little bit about understanding what his role is, but having the strength of character to do the right thing.
I mean, Dean's story has really always been -- both boys' stories have been -- [about the same thing]. The core concern of the show is free will versus destiny. And when you're destined to do something, can you rail against it? From Sam's perspective, when he's destined to do something and then he has fulfilled that destiny, which was to end the world, how can you come back and be redeemed?
And so they both have their stories. But I always say that it's about them coming together, because the story is really not about one or the other; it's about the bond between them that's called brotherhood. It's about this connection of the two of them. The two of them being one unit is for us really what the story is about.
And people online, they get furious -- alternately furious and upset -- or they throw their arms up because they think we're focusing on one brother or the other, and some people are Sam fans, and some people are Dean fans. And in my mind, anyway, you know, they're both on completely equal footing because the story is about the two of them being intertwined. For me, the story is about, "Can the strength of family overcome destiny and fate, and can family save the world?"
If I had a worldview, and I don't know if I do, but if I did, it's one that's intensely humanistic. [That worldview] is that the only thing that matters is family and personal connection, and that's the only thing that gives life meaning. Religion and gods and beliefs -- for me, it all comes down to your brother. And your brother might be the brother in your family, or it might be the guy next to you in the foxhole, it's about human connections.
What you'll find as the mythology of the season unveils, it's this massive, Byzantine mythology of angels and demons and what they want and their destinies for the world. But it's basically about two red-blooded, human brothers giving them all the middle finger and saying, basically, "Screw you; it's our planet. If you want to have a war, pick another one."