Name anything - high-definition TV, computer obsolescence - and I'm pretty much annoyed by it.

Every actor is riddled with insecurity, of course. But weirdly, I don't really find that I'd be daunted with taking on roles or anything.

Most people have a passive relationship with music and clothes, with culture. But music was my first contact with anything creative. Music is it, as far as I'm concerned.

I can spot someone with similar fashion sense to me a mile off.

Benedict (Cumberbatch, who is playing Sherlock) looks amazing. He's still got a Sherlockian silhouette, with a large overcoat, but in a classic cut. Watson dresses with an urban elegance, a touch of old school dashing, giving a feeling of both the military and medical profession. I suppose it's something they have in common as well. They're a bit metrosexual.

Your job, as an actor, is never to just do what you're told. That's boring, and life is too short. It's your job to bring something, and it will either be to other people's taste or your own taste, and you have to try things out. Actors say, "Well, as long as the director's happy," but I don't believe that and I don't agree with that. I want the director to be happy, but if I'm not happy, I won't sleep at night.

I like things that are simple, such as an alarm clock.