It'll be sad not to be Doctor Who anymore because that's an incredible thing to wake up in the morning and go, 'Oh, I'm still Doctor Who!' And you can go and blow up some monsters, and that's how you spend your day. And also when you walk around people don't see Peter anymore, he's not here, it's Doctor Who they see and he gets many more smiles than I do. It'll be sad to say goodbye.

I think the most extraordinary thing about fans is the level of excellence that they show in the work that they do. I mean, if you go onto the internet and see some of the fan videos that have been put together, they're just extraordinary; they could be programmes in their own right.

I found American actors quite scary because they're brilliant actors and brilliantly funny, and they never stopped once you wound them up... off they went and they just deliver fantastic stuff.

Every viewer who ever turned on Doctor Who has taken him into his heart. He belongs to all of us.

When I first came to London, I loved hanging around in cafes, smoking, scribbling, dreaming. It was life-affirming and fun.

I'm a huge fan of The Sopranos, and suddenly, you find yourself going one-to-one with this guy who you've been watching for years, watching every flicker in his eye and every detail on his face.

Keep going and don't give up. You're doing wonderfully. You'll know how to fly this thing eventually.