I think the more the actor lets you know what he thinks of the character, the less the audience cares - like a comedian who laughs at his own jokes.
I love shooting, when the character is interesting and the script is interesting, but the research beforehand is really fun. The whole process makes me anxious and restless, and I have trouble sleeping, just trying to figure out the character.
I mean, I guess I started during the comedy boom, so it was literally like, on Sunday you could decide you wanted to be a comic, and on Monday, you could be on stage.