You do your due diligence, you read as much as you can, and then, ultimately, I find that you discard that and you concentrate on the characters [of 'Antropoid'] and you can draw on [the research] if you wish, but I think ultimately it's about bringing as much truth and honesty to the portrayal as possible.

I really feel actors should try and do as much diverse work as possible to try and keep it interesting.

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.

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

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’ve never done a film for the money

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.