I think you can tell when a New York show isn't shot in the city. It's so iconic and has such a specific energy.

To me, the difference between New York and London is that things are boring and staid in London.

New York cops are very specific in terms of the way they talk and the way they handle themselves. All these cliches that, as an Englishman, I thought were from a bygone era or were a bit of poetic license with cop shows - the more you hang out with them, the more you realize how real that jargon is.

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.'

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've got two brothers and two sisters, so there's five of us and we're all very close, which is cool.

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.