[Toby Jones] is completely different. It's a completely different character. He's the darkest villain we've had. There was always something charming and engaging about Moriarty. There was something fascinating and actually amoral, rather than immoral, about Charles Augustus Magnussen. This guy is the purest evil. Sherlock [Holmes] is actually appalled by him.

When I was your age — about, ooh, a thousand years ago — I loved a good bedtime story. The Three Little Sontarans. The Emperor Dalek's New Clothes. Snow White and the Seven Keys to Doomsday, eh? All the classics.

The thing is, horror is a big part of 'Sherlock Holmes.' Doyle also wrote a lot of great horror stories, so there's a lot more horror in 'Holmes' that people possibly think of. There's a lot of curses and mysticism and real scares.

Benedict is bumbly, sweet, affable; the nicest man you've met.

Some facts in life are immutable. One is, trust no-one who uses the word 'trope'.

Fear is an underrated emotion. And that's why I think it's very dangerous to try and cosset children from it. A healthy scare is as good as as a healthy laugh. In fact, they're two sides of the same coin. There is a desire to shield from the knocks and bumps of reality.

They are called 'Emos' now, and before that they were 'Goths.' They didn't have a name for it when I was one, but I was that black-wearing teenager and yes, I wore a little eyeliner.