His regional theatre credits include The Winslow Boy, Topics of Our Time, The Heart Outright, The Crackwalker, Naked At the Coast and Big Al.
In 2005, he appeared in the film Just Like Heaven as the Maitre D'.
In May 2005, he was inducted in the Highland Park High School Hall of Fame.
He has appeared in over 50 movies, usually playing minor roles.
He reprised his role as Martin Lloyd on Stargate SG-1 in 2006 after nearly five years.
He graduated from Highland Park High School in 1982.
He played Lee Harvey Oswald in three different, completely unrelated productions: Ruby, Quantum Leap, and Mad TV.
He won his round of Texas Hold 'Em on Celebrity Poker Showdown. He earned the name Evil Willie for his fierce card playing.
He has a theater degree from Weslayan University and also attended Yale Drama School.
He has been friends with Sarah Jessica Parker for over 15 years.
Willie: Not everyone looks like Brad Pitt. There are people in the world that look like me. I think people feel that I could be living next door to them. That has much more effect on me.
Willie: I really enjoyed playing for a cause so close to the hearts of Londoners. The atmosphere was electric, and the London Open poker tournament has only begun!