I never talk about filming until I'm actually on the set and I've got the job, because otherwise - "Oh yeah, I'm going to be so busy," and then you're going to see me in McDonald's in two months.

I've been acting for years and years, at prep school - school plays, that kind of thing. That was always very high on my agenda. I went to study English for two reasons. Principally because when I was in university, studying drama wasn't considered an option. You couldn't get a degree course for it. And so many plays and things that I was interested in landed themselves in a broader spectrum of literature.

I think it was in my second week that I auditioned for Battlestar. I was very "Oh gosh, I want to be in television, I want to be in something, but I don't know if I want to be in this."

On a personal note, myself, I find religion - I can understand it, I can understand why we have it, as a kind of force on the planet. And I also at the same time think it's ludicrous. My Latin education teaches me that religion comes from religio, which means, "to bind." To bind with rope. And that's all it means.

Whenever I hear somebody go, "I feel so religious right now!" I'm like, "Well, you're tying yourself up in knots, are you?" There's no spiritual connotation to that word whatsoever. And while it binds you to a rope, because it's about belonging, it alienates you to others. That can't be part of God's plan, if there is a God.

Rather than, as an actor, I want the audience to like me, I'm going to smile beautifully and I've got everybody's sympathy - what about showing the moments when somebody is unbelievably petty? Or really selfish? The faults, the little things, those are the things that interested me about playing the character.

Belief is everything when you're performing something. If you don't have the belief behind it, then that actually puts a shunt on the character. It's like, "Does the character believe this for a minute?"