We use improv in all kinds of fun ways. Sometimes it's to invent or discover new things, sometimes it's to weird out the other actors, and sometimes it's to create a sense of fun, to find new things inside the scripted lines.

I was like a Borscht Belt comedian trapped in the body of a 6-year-old. I was channeling Jackie Mason at 7.

It's funny because The Book of Mormon is The Book of Mormon now. When I was doing it at the very beginning, and I was a part of it for four years and always believed in it, I never really knew if it was going to be more than a convention for South Park fans.

We use improv in all kinds of fun ways. Sometimes it's to invent or discover new things, sometimes it's to weird out the other actors, and sometimes it's to create a sense of fun, to find new things inside the scripted lines.

When you're doing a pilot, you're doing it in this bubble that almost works against the creative impulse. You don't have time to get to know the actors first, and you have three writers, as opposed to a room full of writers.

I met Jon Lovett, who was just coming off of three years of being a presidential speech writer and had just arrived here to be a comedy writer in Hollywood. I thought he was super green, in terms of this world, but he knows so much about the world that we're attempting to write about.

My idol growing up was Charlie Chaplin. I was obsessed with him. I mean, while other kids were watching Jim Carrey and the likes in the '90s, I was watching Charlie Chaplin films, because I was a bit of a geek. I became obsessed with this idea of physical comedy.