I think it's necessary to keep moving forward. I've always said that nostalgia is death, really for anyone creative.

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 only two constants are to challenge myself and to try not to repeat myself.

I started off in theater; I did exclusively theater for four or five years. In the last few years, television has come along but I can still make film. I feel very privileged that I can move between them.

But television affords you, what you just described, to - over the course of 18 hours, now that we're doing a third season - tell the story of this man. You're not under any obligation, really, to do massive expositional stuff at the beginning. You're at liberty to say, "Come with us on this journey," and, gradually, you become aware of what his motivations are, what drives him, what his weaknesses are, what his strengths are. That's what I think's sucking people into these worlds, because it is kind of like a novel, you just go really, really deep.

And once you're unafraid with death, I think your capacity for violence is immediately increased. Once you're unafraid of death, you are a very, very dangerous adversary

I'm definitely a frustrated musician, though it's more in terms of wishing I was a better guitar player and songwriter. But I've never regretted becoming an actor instead. I think it's been a more pure form of self-expression for me. I luckily found something that I could aspire to be good at, whereas I never... I think I'd never quite reach that level of artist that I enjoy in the music world.