When I started drama school, theatre was the main draw. I never had any movie star notions. Not that there were family ties to the theatre, either.

The life of an actor is very random. It can be exhilarating but terrifying - you do wonder day to day where the next job will come from. Some of my friends are very talented people, but you see them out of work - which can be tough. If you wanted that kind of security, though, I guess you wouldn't be an actor in the first place.

I try very hard not to take work home, but it can be tricky. Sometimes it feels as if you are wearing your costume underneath your own clothes! I suppose things are always ticking away in the back of your mind.

I just would like to keep going. If I kept getting the kind of work that I've been getting for the last 20 years for the next 20, I'd be a bloody Dame of the British Empire. I'd be so happy.

Any kind of conflict draws me to a role.

For actors, being successful is generally getting a job. If you can work a lot, you're really successful. If you work a lot on projects that are interesting and intelligent and great fun to be part of, then you're hugely successful. And I feel hugely successful. I can't believe that I get to be involved with the projects and the people I work with.

I think age is sometimes just a number. But it's a real joy. Young actors don't come with any of the baggage that we load ourselves up with. They're not worried about their profile, they're not worried about how good they look, or all the nonsense. They just tell the story and ask: "What happens in this scene?" Well, I'll do that then. And professionally it's good for you because it means that you're forced to do the same thing, and that's always a good thing.