Laughing and crying are really similar - what happens to your body. It's a very similar process in your diaphragm. Like a musician, you have to do your scales once in a while and warm up your voice.

You have to sometimes just run with the problem rather than trying to solve it with hi-tech wizardry and lots of planning.

I was the boy that turned a girlfriend into the most celebrated lesbian on television. I got so much stick for that.

I was thrilled with how the first series of 'Sherlock' was received. It was such great fun to film, which makes it so rewarding when something you enjoy is so well received.

I'm a high-functioning sociopath, do your research.

I think I'm a very good driver. Apparently, the cause of road rage - as with most anger - is some kind of superiority complex, which, god knows, cars foster.

Mum did a lot of commercial theatre and farces in the 1980s and '90s to make sure the school bills were paid.