Dexter - Season 6 - Interview with Executive Producer Scott Buck

Why was religion chosen to be the theme of the show this season?
Scott Buck: You know, I had looked at it just like Dexter, so it didn't necessarily begin with being about religion but beginning with what do you want to pass on to your kids? You don't think about that until you have kids and once you do have kids it becomes a big thing. So just putting myself in Dexter's place that was the thought that took hold. Dexter is someone who has always been an atheist [and] who's never even considered the idea that there might be something else out there. But then being hit with the idea, is that something that I really want to pass on to my son? Do I want to pass on simply nothing, a belief in nothing, or is it possible there's something more out there?

And now who's the expert on your staff on the Book of Revelations since that's played such a big role?
SB: It's interesting because we have an extremely diverse staff as far as beliefs. We have everything from born again Christians to atheists to people of the Jewish belief to people who follow a more Eastern philosophy. Scott Reynolds was probably our 'go to' source as far as Biblical quotations, but we certainly all studied the Book of Revelations just so we could write about it as well.

Specific to [tonight's 'Ricochet Rabbit'] episode, why was it important that Batista (David Zayas) be the one who gets captured at the end of the episode and not anybody else on the show?
SB: I think we chose Batista simply because he's probably the most beloved member of the department so it would just make it feel more urgent, I think rather than if anyone else was in that situation.

Source: Full interview @ The Futon Critic