Before his interest in acting developed, he wanted to be a journalist.
Worked in theater for years before making his film debut as Tom Cruise's best friend in 1983's Risky Business.
Perhaps most recognized for playing Dudley "Booger" Dawson in the feature films Revenge of the Nerds (1984) and Revenge of the Nerds II: Nerds in Paradise (1987). Reprised his role for the TV movies Revenge of the Nerds III: The Next Generation (1992) and Revenge of the Nerds IV: Nerds in Love (1994).
Appeared on television for the first time when he joined the second season of ABC's Moonlighting.
A prolific character actor, he made guest appearances on such shows as Murphy Brown, Felicity, Ed and One on One.
Norma E. D'Amico — Mother
Robert Armstrong — Father
Lily Armstrong — Daughter
Elaine Aronson Armstrong — Wife
Oakland University, Detroit, Michigan, United States; Academy of Dramatic Arts, Pontiac, Michigan, United States