• The Lion of Oz (1999)
• Baby Geniuses (1999) .... Lenny
• Cattle Call (1999)
• Wedding Band(1999) .... Priest
• Between the Sheets (1998)
• The Godson (1998) .... The Oddfather
• It's All About You (1998)
• The Good Bad Guy (1997) .... Judge
• Boys Will Be Boys (1997) .... Chef
• Red Line (1996) .... Jerry
• The Silence of the Hams (1994) .... Dr. Animal Cannibal Pizza
• Munchie Strikes Back (1994)
• Robin Hood: Men in Tights (1993) .... Don Giovanni
• Almost Pregnant (1992) .... Doctor Beckhard
• Driving Me Crazy (1992) .... Mr. B
• Loose Cannons (1990) .... Gutterman
• Going Bananas (1987) .... Big Bad Joe
• Spaceballs (1987) (voice) .... Pizza the Hutt
• A Taxi Driver in New York (1987)
• Haunted Honeymoon (1986) .... Aunt Kate
• Johnny Dangerously (1984) .... The Pope
• Cannonball Run II (1984) .... Victor & Captain Chaos
• The Best Little Whorehouse in Texas (1982) .... Melvin P Thorpe
• History of the World: Part I (1981) .... Julius Caesar
• Cannonball Run, The (1981) .... Victor & Captain Chaos
• Wholly Moses (1980) .... Shadrach
• Fatso (1980) .... Dominick DiNapoli
• The Last Married Couple in America (1980) .... Walter Holmes
• Smokey and the Bandit II (1980) .... Doc
• Hot Stuff (1979) .... Ernie Fortunato
• The Muppet Movie (1979) .... Bernie--the Hollywood Agent
• The End (1978) .... Marlon Borunki
• The Cheap Detective (1978) .... Pepe Damascus
• Sextette (1978) .... Dan Turner
• The World's Greatest Lover (1977) .... Zitz
• Silent Movie (1976) .... Dom Bell
• Sherlock Holmes' Smarter Brother (1975) .... Eduardo Gambetti
• Blazing Saddles (1974) .... Buddy Bizarre
• Every Little Crook and Nanny (1972) .... Azzecca
• Who Is Harry Kellerman... (1971) .... Irwin
• Twelve Chairs, The (1970) .... Father Fyodor
• Norwood (1970) What's So Bad About Feeling Good? (1968)
• The Busy Body (1967) .... Kurt Brock
• The Glass Bottom Boat (1966) .... Julius Pritter
• Diary of a Bachelor (1964) .... Marvin Rollins
• Fail-Safe (1964) .... Sergeant Collins 

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Animated Films

• Remembering Mario (1999) .... Mario
• The Secret of NIMH 2: Timmy to the Rescue (1998) .... Jeremy
• An All Dogs Christmas Carol .... Itchy
• All Dogs Go to Heaven 2 (1996) .... Itchy
• Toonstruck (1996) .... 'Fingers' the Cashier
• The Skateboard Kid (1993) .... Rip
• A Troll in Central Park (1993) .... Stanley
• Munchie (1992) .... Munchie
• American Tail: Fievel Goes West, An (1991) .... Tigar
• Happily Ever After (1990) .... The Looking Glass
• All Dogs Go to Heaven (1989) .... Itchy
• Oliver & Company (1988) .... Fagan
• American Tail, An (1986) .... Tigar
• The Secret of NIMH(1982) .... Jeremy

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Television

• Stargate SG-1 (1999)
• All Dogs Go To Heaven: The Series (1997) .... Itchy
• Tin Soldier (1995)
• Don't Drink the Water (1994) .... Father Drobney
• Burke's Law (1994) .... Vinnie
• Candid Camera (1991) .... Host
• The Dom DeLuise Show (1987)
• Happy (1983)
• The New Adventures of Mighty Mouse (1979) (voice) .... Swifty
• Diary of a Young Comic (1977)
• Only with Married Men (1974) .... Murray West
• Lotsa Luck (1973) .... Stanley Belmont
• Roman Holidays (1972) (voice) .... Mr. Evictus
• The Dean Martin Show (1965) .... Regular Performer (1972-1973)
• Evil Roy Slade (1971) .... Logan Delp
• The Glen Campbell Goodtime Hour (1969) .... Regular (1971-72)
• The Dom DeLuise Show (1968)
• The Dean Martin Summer Show (1966)
• The Entertainers (1964)