It can be difficult to be subtle and not cartoony in prosthetics. But when you see characters like Bubbles and Desiree from 'Little Britain' on screen, it makes all the hard work worth it. It's such fun watching those transformations.

I've done panel shows, which I enjoy, and on those you're recording half-an-hour of TV and sometimes they film for two hours. But with 'Britain's Got Talent,' you're on camera for eight hours, with a large theatre audience watching - and in between you're being filmed for ITV2 as you eat your lunch.

I think comedy is a bit more international than people credit. I happily watch lots of American shows and American comedy films. If I did a list of the top 10 comedy films in Britain, there's no sense that it would probably be different than yours.

I've just swum the length of the Thames. I feel quite tired.

No more watching that show Small England or whatever it's called where those two idiots dress up as 'laydees'. It's a bad influence.

Reality always outstrips fiction. Whatever you make up, something more incredible always pops up in real life.

I think all those rules are boring. About what people can and can't wear. Surely everyone should be able to wear whatever they like?