I take my hat off to the ladies. The amount of grooming-plucking and shaving and all the other things men never have to do. I went down and spent time with transvestites in London in the clubs and all that. Got an insight to that world, and it's a mad world, but they are very warm and very open people. It was a great experience.

I come from a long line of teachers. Not only did I not go into the family business; I had an aborted law career and I played in bands. 'Disco Pigs' was my first professional acting experience.

You need to be as clean of a slate as you can be, as an actor. You have to try to be open to every experience.

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.

You're an actor who's Irish, not an Irish actor. And you shouldn't be limited by your extraction.

With some films you can sort of slide in, get a haircut and you're in.

I feel very lucky to be making good work still. The confidence of youth, or that sort of competitiveness you get when you're 22 or 23, the impatience - that's probably been tempered. Hopefully I'm slightly better company.