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."

I did worry about being in a science-fiction show. The bits that I was reading, I felt were funny, and I felt the man was childish, so I really did ask initially, "Is this for kids?" And the thing that came back immediately was like, "Hey, take a look at this whole thing again. This is definitely not for children. How can you think that?"

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.

What would I like? Some very silly comedy where I don't have to think about anything, but it could be a lot of fun. And if it's not that, then I'll want to be involved in something where it's like, you're really dredged up to the neck in emotion, where it's as exciting as the premise of Battlestar.

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 was convinced that I was going to be onstage for the rest of my life.

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.