I wouldn't wear turtlenecks. That I'm not envious of. But who knows? I might sneak out a few things and hope and pray that no one says, 'Hey, didn't you wear that when you were playing an enormous geek on TV?'

Well, I think that everybody is kind of a nerd at heart.

The weird part is actually, there were so many exceptionally talented people there [ on "MADtv"]. But it was a disaster. I don't think I enjoyed any of it, really. I had a different sensibility.

There are those moments where you realize that your parents or your heroes are human and are fallible. That concept, in and of itself, is something that is dangerous to me, in a good way. It's exciting and scary to meet those people.

I wanted to come to Chicago. I also wanted to do "Saturday Night Live." And then I got to a place where I didn't want to do those things anymore.For the sketch comedy thing, I got cast on "MADtv," and that will kill any man's desire to do comedy.

I did not want to be the accompanist to an operatic star. But I was at a very high level for a 16-year-old, and I maintained that. So really good, but more impressive than classically trained. So I had to take a crash course in classical technique because I really wanted to get away with playing this character [in Florence Foster Jenkins] without people saying, "That's not really accurate."

When you have this long of a run [in The Big Bang Theory], you don't have to have something happen every episode. Like, Sheldon lost his virginity last season and in the first season he didn't even like girls. So I feel like you can earn that stuff. And that is really fun, because you get to find new layers. It's a testament to the writing.