At 13, made his TV debut playing Roddy Miller in the CBS series Windows on Main Street, then went on to appear in episodes of Leave It to Beaver and My Three Sons
Was the original voice of Johnny Quest on Hanna-Barbera's animated series The Adventures of Johnny Quest
In 1968, served in the United States Marine Corps Reserves
Joined the L
A
improv-comedy troupe the Groundlings in 1976
Breakout role was playing Eric "Otter" Stratton in National Lampoon's Animal House (1978)
Made his directing debut in 1984 with an episode of NBC's St
Elsewhere
Was co-owner and chair of the humor magazine National Lampoon from 1989 to 1991