I've never loved a character as much as I do Niska. The way she's been written is so complex, with huge amounts of light and dark. It's a really satisfying challenge to play someone who is superhuman in their intelligence and physical ability but completely naive when it comes to certain aspects of life.

I imagine if you're one of those genius people working on AI, the desire to find out what's possible is presumably the driving factor, but I hope there are just as many people who are thinking about what we actually want. Just because something's possible it doesn't mean it's going to be good to us.

When I was little, I was actually really shy. I really enjoyed doing school plays, but I found the whole thing terrifying. I cried myself to sleep once because I thought my teacher was going to give me the lead role. I never imagined acting was a viable career.

Politics is terrifying, very masculine, and not particularly encouraging to young blonde women - as a career, that is - and it was only when I was working in parliament that I thought to myself, 'Well, this is a tough industry; can an acting career be any more intimidating?' and I applied to drama school.

Statistically, I'd say comedy writers are perhaps the sanest category of show people. And why not? They make big money, and although it's not an easy trade - particularly when you're at your galley oar five days a week - it's easier on the nerves and the psyche than living with the brain-squeezing pressure and cares of being the Star.

I want to do drama, light comedy, the whole range.

I'm a student of comedy in general, so I've always loved Billy Crystal. But I'm a different type of showman. I'm a clown and a jester.

When you take a character seriously, there's more room for comedy because you're not aware of how absurd you are.