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.

What is interesting, as well, is how much power homicide detectives have and how much respect. They are kind of rock stars, especially in New York. There are not that many of them.

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.

New York police force seems like unlike any other in America and even the world. There's a very specific culture dynamic, a specific chemistry. There's almost a specific set of rules because of the city and the size of it.

I don't think I believe in ghosts, per se. But, my nearest experience was when I went on a weekend away and was in a bar in England, years ago, with an ex-girlfriend. I heard this scratching. I was about to go to bed and I was thinking, 'It's an old ghost.' I could hear this noise, but I couldn't work out where it was coming from.

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.

My fear in life, I don't have any kind of specifics like snakes or spiders or anything but I think if I was covered in buttermilk naked running down the street being chased by Gandalf, I'd say, or I don't know, I'm just making it up!