That's the thing - you do a job like 'Shameless,' and suddenly that's why you can get a job like 'The Virgin Queen', not because of all the classical theatre you've done. But we can be very snippy about television. It's absolutely the most potent and powerful form of storytelling we have.

I only went along to youth theatre with a friend when I was young to try to make myself a bit more sociable. But the whole thing was quite sore; it really hurt me trying to get into drama school. It was a world I knew nothing about - it was very middle class; all that usual stuff. But I was young, determined, and I just went for it.

I didn't really know anything about Margot Fonteyn. I'd never really been a ballet child, so I had no idea what an incredibly huge icon she was, not just in terms of a creative icon - she was also a style icon. I had no idea she was up there with Audrey Hepburn and Jackie Onassis in terms of that kind of image.

I was quite shy. I used to write stories all the time, and I think that was a worry for my parents.

That's the trouble with the suburbs: it's not a city, so you're not anonymous, and it's not a small town, so that people really care about you, but everybody kind of knows each other's business, so you're very judged.

There are some roles you just don't say 'no' to. Those compass points: you get them so rarely as an actress.

I'm not a great beauty. That's not me.