| 2023 | The Water Is Finally Blue: The Untold Story of Robert Altman's O.C. and Stiggs | Self – Interviewee (voice) | ★ 0.0 |
| 2022 | Who Done It: The Clue Documentary | Self (archive footage) (uncredited) | ★ 5.5 |
| 2022 | Melons | Mr. Sunnyside | ★ 4.7 |
| 2018 | Eine nutzlose und dumme Geste | Modern Doug | ★ 6.5 |
| 2013 | Tim's Vermeer | Himself | ★ 7.2 |
| 2013 | Ha/lf | Grandpa Rich | ★ 0.0 |
| 2011 | And They're Off | Ken | ★ 4.1 |
| 2011 | Oliver's Ghost | Clive | ★ 5.5 |
| 2010 | 2Everything2Terrible2: Tokyo Drift | (archive footage) | ★ 6.4 |
| 2010 | Kiss & Kill | Holbrook | ★ 6.0 |
| 2006 | Relative Strangers | Jeffry Morton | ★ 5.2 |
| 2005 | The Aristocrats | Self | ★ 5.9 |
| 2005 | Come Away Home | Barney | ★ 6.6 |
| 2004 | A Boyfriend for Christmas | Martin Grant | ★ 5.6 |
| 2002 | The Year That Trembled | Wayne Simonelli | ★ 4.6 |
| 2001 | Sister Mary Explains It All | Skeptical Husband | ★ 4.8 |
| 2000 | Attention Shoppers | Charles | ★ 2.5 |
| 1999 | Yesterday's Tomorrows | Self | ★ 10.0 |
| 1998 | Zack and Reba | Virgil Payne | ★ 5.3 |
| 1998 | Richie Rich - Die Wunschmaschine | Richard Rich | ★ 4.7 |
| 1997 | Familie Robinson aus Beverly Hills | Doug Robinson | ★ 4.0 |
| 1996 | Versprochen ist versprochen | D.J. | ★ 6.0 |
| 1996 | Edie & Pen | Johnnie Sparkle | ★ 5.6 |
| 1996 | Sex, Censorship and the Silver Screen | Quote Reader | ★ 4.7 |
| 1994 | Abenteuer auf der Wildwasser-Ranch | Bart Gafooley | ★ 5.5 |
| 1994 | Mr. Write | Dan Barnes | ★ 2.0 |
| 1993 | Cool! Endlich sind die Eltern weg | Norman Roberts | ★ 3.7 |
| 1993 | Mrs. Doubtfire - Das stachelige Kindermädchen | Justin Gregory | ★ 7.2 |
| 1993 | Sex, Shock & Censorship in the 90's | “Love Thy Neighbor" Host | ★ 0.0 |
| 1992 | Miracle Beach - Sonne, Sex und 1000 Träume | Donald Burbank | ★ 5.7 |
| 1992 | The Player | Martin Mull | ★ 7.2 |
| 1992 | Tanz mit dem Tod | Art | ★ 4.0 |
| 1992 | Martin Mull: Talent Takes a Holiday | Self | ★ 0.0 |
| 1991 | Ted & Venus | Ted's Attorney | ★ 4.7 |
| 1991 | Tom Arnold: The Naked Truth | Self | ★ 4.5 |
| 1990 | Far Out Man | Psychiatrist | ★ 5.1 |
| 1990 | Ski Academy | Maris | ★ 4.8 |
| 1989 | Highway Chaoten | Dr. Bruekner | ★ 6.3 |
| 1989 | Die Todesparty 2 | William Carson III | ★ 5.0 |
| 1988 | Portrait of a White Marriage | Martin Mull | ★ 4.0 |
| 1988 | An All-Star Toast to the Improv | Self | ★ 0.0 |
| 1987 | Rented Lips | Archie Powell | ★ 4.2 |
| 1987 | Martin Mull Live from North Ridgeville, Ohio | Self | ★ 0.0 |
| 1987 | Black Cats | Pat Coletti | ★ 4.7 |
| 1987 | Hart, aber schmerzlich | Carson Boundy | ★ 3.7 |
| 1987 | Jonathan Winters: On the Ledge | | ★ 0.0 |
| 1986 | Die Frau vom Boß | Tony Dugdale | ★ 5.0 |
| 1986 | Pecos Bill | Governor Ambrose Peasley | ★ 0.0 |
| 1986 | The History of White People in America: Volume II | Himself - Host | ★ 9.0 |
| 1985 | Alle Mörder sind schon da | Colonel Mustard | ★ 7.2 |
| 1985 | The History of White People in America | Host | ★ 6.2 |
| 1985 | California Girls | Elliot | ★ 4.0 |
| 1985 | Lots of Luck | Frank Maris | ★ 7.0 |
| 1984 | Schweinebande! | Warren Fitzpatrick | ★ 5.7 |
| 1983 | Sunset Limousine | Mel Shaver (uncredited) | ★ 4.0 |
| 1983 | Flicks | Tang / Arthur Lyle | ★ 5.0 |
| 1983 | Mr. Mom | Ron | ★ 6.6 |
| 1983 | Private School - Die Superanmacher | Drug Store Clerk (uncredited) | ★ 5.7 |
| 1983 | Grandpa, Will You Run with Me? | Self - Sketch Performer | ★ 0.0 |
| 1982 | Twilight Theatre | | ★ 0.0 |
| 1982 | Magic with the Stars | | ★ 0.0 |
| 1981 | Ein Senkrechtstarter kratzt die Kurve | Dick Ebersol | ★ 5.3 |
| 1980 | Die Schulhofratten von Chicago | Mr. Peache | ★ 6.3 |
| 1980 | Crazy Family | Harvey | ★ 5.5 |
| 1979 | The Chevy Chase National Humor Test | | ★ 0.0 |
| 1978 | FM | Eric Swan | ★ 6.7 |
| 1978 | A Different Approach | | ★ 6.3 |
