[Sam and Dean] 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. 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.

Eric Kripke interview with the Chicago Tribune in 2009. Still 100% true in 2016. (X)

Eric Kripke Interview with the Chicago Tribune (August 26, 2009)

When we started out, we were going to make a horror movie every week. It was about the monsters, and it was about Hook Man and Bloody Mary and the urban legends and the boys… honestly, in the beginning, Sam and Dean were an engine to get us in and out of different horror movies every week. Because that’s when “The Ring” was burning up the box office, and so we were really setting out to bring the horror movie esthetic to television.

I would say right around Episode 4 or 5 [of Season 1, executive producer/director] Bob Singer and I were watching the episodes, and we just started saying, “God, those two guys and their chemistry is so much more interesting than the horror movies we’re showing.”

And then we started re-breaking story for that.  And if you look at Season 1, the first half, almost it’s a little repetitive, but it really picks up and catches on right around about, I think, episode seven or eight, when they go home for the first time. That’s when we started realizing that we should play to the strengths of what’s in front of us, which is these two amazing actors who have this unbelievable chemistry. And sure enough, now that’s really, more than anything, that’s what the show’s about.

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