Daniel Stern

After 'The Wonder Years,' I ended up having a voiceover career, which was something I never even knew was possible. But after the character I was playing on 'The Wonder Years,' people said, 'Oh, would you like to do a Burger King thing? And there's a 7 Up thing...' And then I got to do 'Dilbert.' I think my voice kind of fit for that.

The only other thing I can really remember wanting to do besides acting was a gas station attendant. At the time, that seemed like a great job - wash the windows, pump the gas - it looks so cool coming home with black hands. There's a natural transition, from wanting to be a gas station attendant to being an actor, right?

Set your sights high, the higher the better. Expect the most wonderful things to happen, not in the future but right now. Realize that nothing is too good. Allow absolutely nothing to hamper you or hold you up in any way.

Frankly, as much as I love to improvise, it hasn't been difficult to stick to the script on 'Mad Men.' The writing is so precise, and the story so carefully crafted, that I don't think there's room - or need - for ad libbing. I could never come up with dialogue as lovely as these writers do, anyway.