I absolutely love television, and I don't mean to be vulgar, but as I keep having to explain to people from the movie industry, I get more power and more money doing television, so why on earth would I do a film?

Peter Capaldi, will always be Doctor Who. You retain the title forever. Ask your predecessors, they all think they're the real one. I've had Sunday lunch with Peter Davidson and David Tennant and they're eyeing each other like, 'It's me!

See the bowtie? I wear it and I don't care. That's why it's cool.

Sherlock Holmes becomes more human and more adept at fitting in with a lot of people, but he remains separate from the human race because he finds that a better place to observe that from. He stays on the mountain top because there, he can see clearly.

What's the point of being a grown-up if you don't get to be immature?

I always rip out the last page of a book. Then it doesn't have to end. I hate endings!

Brainy's the new sexy.