It's definitely nerve-racking to be the center of attention. I'm not the kind of an actor that just craves attention 24-7 - but it's part of the deal. You're the leader on the set.
When I really have to push and grope and scratch and claw to make a story work, that's a telltale sign that maybe something conceptually isn't right.
The Gorillaz cartoons seem more real to me than the actual people on TV. Because at least you know that there's some intelligence behind the cartoons, and there's a lot of work that's gone into it, so it can't all be just a lie.