I don't care what other people think any more about me writing my own parts.

I grew up with low self-esteem. I didn't think I was very pretty. I had glasses, red hair and was generally quite a spod.

I imagine John Watson thinks love’s a mystery to me, but the chemistry is incredibly simple and very destructive. When we first met, you told me that a disguise is always a self portrait, how true of you, the combination to your safe – your measurements. But this is far more intimate. This is your heart, and you should never let it rule your head. You could have chosen any random number and walked out of here today with everything you worked for. But you just couldn’t resist it, could you? I’ve always assumed that love is a dangerous disadvantage. Thank you for the final proof.

I had a girlfriend before I ever had a boyfriend, but it was just a phase.

It's a cliche, but it's true that all the fun lies in baddies, grotesques and comic roles.

We made our Moriarty very different to [Conan] Doyle's. He's Irish, and he brings all his charm, his twinkle and his humor to it while he's also terrifying.

Sci-fi and fantasy used to be a TV staple throughout my childhood. Then it just stopped dead. It was seen as culty, a minority interest.