I like David Mitchell. He's the second Most English Person in the World (after Stephen Fry, obviously). But actually, I've not seen much of Peep Show apart from the odd episode here and there. It's not that I don't like it, it's just that I missed the boat a bit and I don't really want to swim after it. Same reason I still haven't watched Mad Men or Breaking Bad, even though I'm fairly certain I would like them if I did.
He's always great on panel shows, as well:
"The trouble with fighting for human freedom is that one spends most of one's time defending scoundrels. For it is against scoundrels that oppressive laws are first aimed, and oppression must be stopped at the beginning if it is to be stopped at all."
-H. L. Mencken