It's just the way I'm made. I do feel confident in what I do. It doesn't always work out 100% of the time, but generally I think I can do it quite well. But the other part of my job is doing the press and stuff. And I'm rubbish at that. I'm really not good at that at all - this quite important part of what I do.

I don't lobby where work is concerned. As long as I know I've got something coming up, I don't really worry. It's not that I'm not ambitious, but I don't have a drive to be hugely successful and be working all the time.

I get claustrophobic in a harness. I'd be a terrible superhero.

It can get a bit boring working on accents.

They're naughty, all those writers - they mess around with people. I know James Gandolfini got a bit fed up on 'The Sopranos': if he said anything in front of a writer, told them a story from his life, it could make its way into the script.

It's that TV thing. You can be in the biggest film of the year and it will still not have the kind of impact a TV series has. Once you're in people's living rooms, that's it. There's no hiding place.

A few years ago, if you had told me I'd be moving back to Glasgow I'd have said, 'No way'. But it's changed. It's much more vibrant, bohemian. But I'm 35 and I've become a bit of a homebody, I don't really go out much. Same in New York. My home could be anywhere but I love Glasgow.