Rich Sommer

The worst job I ever had was as a telemarketer for, oh, I don't know, I think I made it about 90 minutes. I quit before lunch. I went in around 10:30 or 11 and said, 'I can't do this.' It was horrific. I had too many people yell at me within that 90 minutes to be able to continue.

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.