Being in front of an audience makes me feel alive. Being with friends makes me feel alive. I’ve done some crazy stuff in my time and yet I can feel infinitely alive curled up on a sofa reading a book. So, what makes me feel alive? I guess it’s realizing I am part of the world around me.

There are very specific demands, though, in television, and you notice the budget constrictions. It's the time constraint and a purse constraint more than anything else that you notice. But the ambition of the writing and, hopefully, the delivery of it gets better and better because we want to outdo ourselves to keep ahead of a very expectant and hungry public.

I'm aware of the power of looks. I've wanted to play roles that have gone to much better-looking people and you just think 'Oh well, that's the pin up guy's an actor like my friend James Mcavoy, who's gorgeous on screen. I'm not that. But at least I don't have to worry about taking precious care of my face because it's my commodity. That's a great freedom. I'm not afraid of being heinous for the sake of a part

[Sherlock Holmes] has to understand the world. That's very much John's [Watson] influence on him. But like a lot of the friendships and relationships in that world, it's born out of necessity. It makes him better. There's a pragmatism to it. It's not whimsical or sentimental. It's born out of necessity.

We should have a conversation when we hang up.

Sometimes being away, on location, I feel like I'm away for much of my own life. I want to be better at staying connected.

Actor is an odd profession, and sometimes people get jealous, but I haven't really experienced any of that. Everyone's been really happy for me, which is really, really great.