I had a fantastic teacher in high school. I had one of those guys you dream of having, who molds your life and inspires you to go in a particular direction, and he was quite brilliant. His name was Cecil Pickett, and a lot of the kids from my high-school drama class are in professional show business and have done quite well.

I think it's the business part of the word show business that causes me the most concern.

I've gotten such good feedback from that [re-team with Wil Wheaton for Big Bang Theory appearance], and I hardly did anything.

No, actually I'm trying to stay away from the big screen.

I mean, I'm the tag of the [ Big Bang Theory ] show! That was one of the easiest jobs I've ever had.

Earl Mills is probably the best role I've ever been given in a film. And it was a great experience to work with Halle [Berry] and Klaus Maria Brandauer, an Austrian actor who's a hero of mine. Martha Coolidge directed the movie [Introducing Dorothy Dandridge], giving me another shot, and it was an amazing experience.

There's such a grand fraternity of actors who've played the Joker, not the least of whom is Mark Hamill, who voiced it for so long and was so great. I did it one time and... I've gotten some feedback on it from people who've seen it and really enjoyed it, but I don't know.