I think that every artistic venture is a risk, and it has to be that way, so you do as much preparation as you can and make that as thorough as you can possibly make it, until you turn up on set. It's about taking risks, and some might work and some might not, but that's what makes it interesting.

The storytelling in 'Doctor Who' is quite universal.

I always steal a pair of socks on every photo shoot I do. It's my thing.

I'm not hugely technical with things, but I guess that the thing I use most is my iPhone, on a practical level.

Be brave. Don't be afraid to be stupid.

It's very rare that I play cool people. I'm not sure what that says about me.

Even now, I'm very superstitious, in silly ways. I always put my left boot on first. Or on set, I always tie my bow tie from right to left.