| Acted on radio in the weekly "National Lampoon Show" |
| Appeared off-Broadway in "The National Lampoon Show" |
| Joined the Boston Shakespeare Company |
| Joined the Organic Theatre of Chicago |
| Performed as a member of Chicago's Second City improvisational troupe |
| Worked as a caddy for eight years in Illinois; served as the insperation for "Caddy Shack" |
1975 | Feature debut, provided the voice for "La Honte de la Jungle/Jungle Burger," a French-Belgian animated feature |
1977 | Wrote for NBC's "Saturday Night Live"; was also a featured player from 1979-1980 and 1981-1982 |
1980 | Co-wrote (with Harold Ramis and Douglas Kenney) the screenplay for "Caddyshack"; also acted opposite his brother Bill |
1986 | Co-wrote (with Harold Ramis) the screenplay for "Club Paradise" |
1989 | Appeared as Chevy Chase's uptight boss in "National Lampoon's Christmas Vacation" |
1991 | Cast as a regular on the short-lived CBS sitcom "Good Sports," starring Ryan O'Neal |
1991 | Joined the cast on the revamped second season of "Get A Life" (Fox) |
1991 | Portrayed assassin Jack Ruby in Oliver Stone's "JFK" |
1992 | Played an arcade business owner in the film "Wayne's World" |
1993 | Was a regular on the police comedy "Bakersfield P. D." (Fox) |
1995 | Had regular role on the short-lived CBS sitcom "The George Wendt Show" |
1997 | Had a recurring role as sports editor Stuart Franklin on "Between Brothers" (Fox, 1997-1998; UPN, 1999) |
1999 | Voiced The Flying Dutchman in the animated series "SpongeBob SquarePants" |
1999 | Was featured in the ensemble of the CBS sitcom "Love & Money" |
2000 | Played a priest in the Harold Ramis comedy "Bedazzled" |
2000 | Voiced Jack the barber on FOX's "King of the Hill" |
2002 | Cast in the Disney movie "Snow Dogs" |
2002 | Joined the cast of the CBS comedy "Yes, Dear" |
2005 | Voiced Maggie's dad on Disney Channel's "The Buzz on Maggie" |
2006 | Cast in the family drama "Nearing Grace" with David Morse and Jordana Brewster |
2006 | Voiced Coach Gills on Cartoon Network's "My Gym Partner's A Monkey" |
2007 | Cast in the comedy "Daddy Day Camp" |
2008 | Voiced Captain K'nuckles on the animated series "The Marvelous Misadventures of Flapjack" (Cartoon Network) |
2009 | Appeared in the film "17 Again" |
2009 | Cast in a recurring role as Mr. Ehlert in the ABC sitcom "The Middle" |