I never went to drama school, I don't have any certificates saying: 'He's a qualified actor.' But I did think that House was something I didn't have to apologise for. It was something I was really proud of and it was sort of ... whether you liked it or not, it was undeniable.

Happiness is the twinkle in your grandmother's eye as you reverse the tractor off her legs.

I would cling to unhappiness because it was a known, familiar state. When I was happier, it was because I knew I was on my way back to misery. I've never been convinced that happiness is the object of the game. I'm wary of happiness.

Now, my mom always said two wrongs don't make a right. But she never said anything about four wrongs, and that always left me confused.

I travel to work on my motorcycle, so it's jeans, boots and a brown Aero leather jacket that weighs as much as I do. If it were black, it would seem like I've got a Brando idea going on, which I don't.

To be able to pretend to be something that I'm frankly not is very liberating and exciting.

As a real person, he wouldn't last a minute, would he? But drama is about imperfection. And we've moved away from the aspirational hero. We got tired of it, it was dull. If I was House's friend, I would hate it. How he so resolutely refuses to be happy or take the kind-hearted road. But we don't always like morally good people, do we?