Curtis Armstrong (born November 27, 1953) is an American actor, known for his work in the film Risky Business and later achieved stardom as Dudley "Booger" Dawson in the comedy Revenge of the Nerds and its series. His other films include Better Off Dead, One Crazy Summer, National Lampoon's Van Wilder, Smokin' Aces, Dodgeball: A True Underdog Story and Jingle All the Way. He also had a recurring role on the television series Moonlighting.
Curtis provides the voice of Snot on American Dad!.