I've always felt kind of safe on stage, protected. I've talked to other performers about this and they feel the same things, particularly in the live arena. I never get nervous going on stage to do a play. Doing film or television I'll have more butterflies.

I think there's such a thing as a performance gene. If it's in your DNA it needs to come out. For me, it originally came out through music, then segued into acting and came out through there. I always needed to get up and perform.

I guess because theater's so ephemeral and it's gone. You make this nightly contract with the audience and you redraw that contract for the next night, whereas film and television, it's forever. I suppose it's always about adopting personas, never about being yourself. I think they call it a "shy man's revenge."

I suppose I tend to like slightly darker things - people have levelled that on me before and I accept that because in my opinion, if I mention the best movies or the best books, there's always something that's involving slightly darker element of out psyche. I like seeing people under pressure. I like seeing what happens to people when they're under pressure.

My wife can see always how a part affects me personally because she has to live with it.

I don't think they'd ever make a movie about Chuck Baker but I'd love to play Chuck Baker

It seemed to work on camera. And there's very few films - because you make a lot of films and you meet people and you work very intensely and intimately and then you're gone - but there's a few where you actually make friends, and this [The Fall] was one.