For better or worse we live in a very exposing [time] where, if you choose to, everyone can see everyone's business. You see what they're having for breakfast, where they are, what they're doing. Whereas I think that classic idea of mystery is very seductive. Not knowing every single thing about a person, what they're thinking, that's very powerful. And it would be a shame if we lost that totally.

In Britain, you do your job. When you do an American TV show, there is a sense of being one with the crew, and there is a leadership element, which was a learning curve for me because it is very different culturally. In Britain, you just do it, leave and say, 'Thanks.'

Don’t never think that you haven’t got anything to learn.

I know there's Brooklyn and all the boroughs, but Manhattan specifically is so condensed that the energy is very vibrant. Everywhere you look there is something happening.

I find confidence seductive. Confidence, to me, is being happy in your own identity and not being influenced by others. I find that quite seductive because I'm a 50-50 person: in some ways I'm confident, and in some ways I'm quiet, reclusive. [I] like someone who can shake me out of that and approach me.

To me, the difference between New York and London is that things are boring and staid in London. But even the sh-tty diner and bars here are kind of exciting for me. Downtown is funky, West Village is beautiful with the cobbled streets, but I love going uptown because you then you go, "F-ck, I'm in New York!" You see all the skyscrapers.

What made me want to be an actor? Ah, I'm not really sure, to be honest. I was one of those little kids who did it around school, and then I got to university and made lots of bad plays and short films, and then midway through that, it suddenly dawned on me that this might be a satisfying way to earn a living, if that was at all feasible.