Success, however you judge what that even means, brings with it certain pressures.

I'm good at being on my own. As a kid, I was always in my room alone, so I have a high threshold for it. If I'm bored, I'll read. Hanging around doesn't go well with me.

You never undertake a project because you think other people will like it - because that way lies madness - but rather because you believe in it.

Twitter has restored my faith in humanity. I thought I'd hate it, but while there are lots of knobheads, there are even more lovely people. It delights me how witty and friendly most people are.

I'm incredibly proud of 'Life On Mars' and 'Doctor Who.' They're just a blast to do.

I'm not a people person. I'm not sociable. I have been and I can be, but not as a general rule.

I can't watch shows like 'The X Factor,' for instance. I just squirm for the people involved, for the way they're being used. It's the cruellest, most ridiculous show on television. It's ruined music, ruined everything.