Real heroes are all around us and uncelebrated.

If you actually have to engage with somebody who's superior to you and actually battle with them, struggle with them, I think it's more interesting, and funnier for the audience.

I'd say, don't listen to what anyone says: you're good. Go put your anorak on. Get your thick bottle-top specs. Draw your little cartoons and your comics and keep writing to the BBC.

I'm so lucky to have worked with Burt Lancaster, who I remember was one of the first people I'd heard swearing in a really interesting way.

I think the most extraordinary thing about fans is the level of excellence that they show in the work that they do. I mean, if you go onto the internet and see some of the fan videos that have been put together, they're just extraordinary; they could be programmes in their own right.

I think that people like the idea that fans are sort of slightly eccentric and strange, but generally I've just found them very creative and warm and cheerful.

There is no such thing as too much swearing. Swearing is just a piece of linguistic mechanics. The words in-between are the clever ones.