It's always more interesting to take on someone that's going to have hidden sides or a fatal flaw, because there's going to be more to play with - more conflict, internally or in and around them - but it's probably the thing of finding the positive in there.

To start, I wasn't really interested in acting at all, and I didn't make much impact. The first play I was in was on for five nights and I didn't show up for two of them and nobody noticed. But I stayed because that's where my friends were, and after a while I found myself wanting to inhabit other people's worlds and lives.

I have been in control of what I've been doing, of the career I've put together.

I suppose there are actors who are worried about their public image. But I've never had any trouble playing unpleasant characters. It is only a part. Which is why you do it -because you are interested in exploring something you never could or would be.