When you think about it, we’re all different people all through our lives, and that’s okay, that’s good, you’ve got to keep moving so long as you remember all the people that you used to be.

In 900 years of time and space, I've never met anyone who wasn't important

I've always loved dinosaurs.

I'm not handsome enough to be James Bond. Maybe a villain, though.

I think expectations of Doctor Who should always be high, because it's a show that must always progress and get better and better.

It's been four years. It's been the best four years. It's been wonderful, it's been a privilege to work under Steven Moffat. But I think when you gotta go, you gotta go It's sad, I'm going to miss it. I'm going to miss Comic-Con as well. It wasn't an easy decision, but I dunno, you can't play it forever. And, look, they'll get someone amazing and brilliant, and that's the great thing about the show. It continues, and it will get bigger and better. And you'll forget about me.

Nothing can prepare you for the changes that take place in your life - for the changes, not only in my life, but my family's. Nothing can prepare you for the enormity and the transition that you go through.