[Trey Parker and Matt Stone]called me one Saturday morning and said, "Can you do an impression of Conan O'Brien?" And I said, "I don't know." Because that was really... He hadn't been on the air that long, and to be honest, I hadn't watched much of him at that point. So I went to Santa Monica to their studio and said, "Well, what does he sound like?" They said, "Well, just try it one time. Read the copy." And I read the copy one time, and they went, "Okay, that's fine. Thanks a lot, that'll do. That's perfect."

Basically, my deal is that I choose roles based on three criteria. One is the role, obviously, if it's something that speaks to me. Two is, are they gonna pay me? And three is, who am I gonna work with? And, really, if one of those is there, I'm pretty likely to do it, but it's particularly important to me who I'm going to work with, 'cause that's part of the joy.

Both of the Quaid brothers, Randy and Dennis, were in my class, and Tommy Schlamme, who produced and directed The West Wing with Aaron Sorkin, among many others. Marianne Williamson, who did A Course In Miracles, she was in my high-school drama class, too. So it was kind of an amazing class.

Timing is everything, as you know.

I've worked with some great people [in Star Trek], and I was paid handsomely, and it was a nice role. So the whole experience was positive for me.

Comedy really is my bread and butter, even when I'm doing a serious character, with the exception of Outcast. I have found very little humor in this character. Most of the time, what I do, somewhere there is comedy in it.

I had no idea I was part of what was going to be a big mega-hit. I thought I was doing a B sci-fi movie [Independence Day]. And, actually, it was Jeff Goldblum who looked at me one day and said, "You know, I think this is going to be really something." And I said, "Well, I hope you're right." And sure enough, it turned out to be.