Researching real people and doing them, I think, is harder than anything else. You don't want to do a caricature of them and you don't want to do an impression. You just want to do the best you can, in terms of presenting their views and a general impression of the guy. That's the hardest thing to do, real people.

He has also won acclaim for his occasional dramatic and comedic roles such as that of Captain K'Vada in the Star Trek: The Next Generation feature-length episode "Unification" and as Gordon Pibb in DodgeBall: A True Underdog Story. He is best known for his comedic work - as Jimmy James on the TV sitcom NewsRadio as Milton Waddams in the film Office Space and as the voices of Bill Dauterive and Buck Strickland in the animated series King of the Hill.