| The Christmas Letter (2024) as Postman |
| All You Can Eat (2018) as Gordon |
| The Randy & Evi Quaid Compilation (2015) as Self (archive footage) (uncredited) |
| Star Whackers (2011) as Randy Quaid |
| Balls Out: Gary the Tennis Coach (2009) as Coach Lew Tuttle |
| Real Time (2008) as Reuben |
| Goya's Ghosts (2006) as King Carlos IV |
| Blade: House of Chthon (2006) as Melvin |
| Stanley's Dinosaur Round-Up (2006) as Rockin' Rory (voice) |
| Treasure Island Kids: The Battle of Treasure Island (2006) as Captain Flint |
| The Ice Harvest (2005) as Bill Guerrard |
| Brokeback Mountain (2005) as Joe Aguirre |
| Once Upon a Halloween (2005) as Alameda Slim (voice) (archive sound) |
| Saturday Night Live in the '80s: Lost and Found (2005) as Self |
| Back By Midnight (2005) as Eli Rockwood |
| Category 6: Day of Destruction (2004) as Tornado Tommy |
| Home on the Range (2004) as Alameda Slim (voice) |
| Christmas Vacation 2: Cousin Eddie's Island Adventure (2003) as Eddie Johnson |
| Grind (2003) as Jock Jensen |
| Carolina (2003) as Ted Mirabeau |
| Kart Racer (2003) as Vic Davies |
| Black Cadillac (2003) as Charlie |
| Milwaukee, Minnesota (2003) as Jerry James |
| The Adventures of Pluto Nash (2002) as Bruno |
| Frank McKlusky, C.I. (2002) as Madman McKlusky |
| Not Another Teen Movie (2001) as Mr. Briggs |
| The Day the World Ended (2001) as Dr. Michael McCann |
| The Thin Blue Lie (2000) as Phil Chadway |
| The Adventures of Rocky & Bullwinkle (2000) as Cappy von Trapment |
| Mail to the Chief (2000) as President A. Thorton Osgood II |
| The Debtors (1999) |
| Last Rites (1999) as Jeremy Dillon |
| Purgatory (1999) as Doc Woods / Doc Holliday |
| P.U.N.K.S (1999) as Pat Utley |
| La guerre de l'eau (1998) as Lenny |
| Bug Buster (1998) as General George S. Merlin |
| Hard Rain (1998) as Sheriff Mike Collins |
| Valentine's Day (1998) as Phil |
| Vegas Vacation (1997) as Cousin Eddie |
| Get on the Bus (1996) as Tennessee State Trooper (uncredited) |
| Kingpin (1996) as Ishmael Boorg |
| The Making of 'Independence Day' (1996) as Self (archive footage) |
| Independence Day (1996) as Russell Casse |
| The Siege at Ruby Ridge (1996) as Randy Weaver |
| Moonshine Highway (1996) as Sheriff Miller |
| Last Dance (1996) as Sam Burns |
| Woman Undone (1996) as Allan Hansen |
| Les Légendes du Grand Nord (1995) |
| Ed McBain's 87th Precinct: Lightning (1995) as Detective Steve Carella |
| Bye Bye Love (1995) as Vic Damico |
| Curse of the Starving Class (1994) as Taylor |
| Next Door (1994) as Lenny Benedetti |
| Roommates (1994) as Jim Flynn |
| Major League II (1994) as Johnny (ucredited) |
| The Paper (1994) as Michael McDougal |
| Frankenstein (1993) as The Monster |
| Freaked (1993) as Elijah C. Skuggs |
| Picture This (1991) as Self |
| Texasville (1990) as Lester Marlow |
| Cold Dog Soup (1990) as Jack Cloud |
| Quick Change (1990) as Loomis |
| Days of Thunder (1990) as Tim Dalander |
| National Lampoon's Christmas Vacation (1989) as Cousin Eddie |
| Bloodhounds of Broadway (1989) as Feet Samuels |
| Martians Go Home (1989) as Mark Devereaux |
| Out Cold (1989) as Lester |
| Parents (1989) as Nick Laemle |
| Dead Solid Perfect (1988) as Kenny Lee |
| Caddyshack II (1988) as Peter Blunt |
| Moving (1988) as Frank / Cornall Crawford |
| Evil in Clear River (1988) as Pete Suvak |
| No Man's Land (1987) as Lieutenant Vincent Bracey |
| LBJ: The Early Years (1987) as Lyndon Baines Johnson |
| Sweet Country (1987) as Juan |
| The Wraith (1986) as Sheriff Loomis |
| Fool for Love (1985) as Martin |
| The Slugger's Wife (1985) as Moose Granger |
| The Wild Life (1984) as Charlie |
| A Streetcar Named Desire (1984) as Harold "Mitch" Mitchell |
| National Lampoon's Vacation (1983) as Cousin Eddie |
| Cowboy (1983) as Evan Coleman |
| The Luck of Roaring Camp (1982) as Kentuck |
| Heartbeeps (1981) as Charlie |
| Of Mice and Men (1981) as Lenny Small |
| The Long Riders (1980) as Clell Miller |
| To Race the Wind (1980) as Chet Watson |
| Foxes (1980) as Jay |
| The Last Ride of the Dalton Gang (1979) as Grat Dalton |
| Midnight Express (1978) as Jimmy Booth |
| The Choirboys (1977) as Dean Proust |
| Three Warriors (1977) as Ranger Quentin Hammond |
| Bound for Glory (1976) as Luther Johnson |
| The Missouri Breaks (1976) as Tittle Tod |
| Breakout (1975) as Hawk Hawkins |
| The Great Niagara (1974) as Carl Grant |
| The Apprenticeship of Duddy Kravitz (1974) as Virgil |
| The Last Detail (1973) as Meadows |
| Paper Moon (1973) as Leroy |
| Lolly-Madonna XXX (1973) as Finch Feather |
| What's Up, Doc? (1972) as Professor Hosquith |
| Getting Away from It All (1972) as Herbie |
| The Last Picture Show (1971) as Lester Marlow |