Actor (76 credits)
- Affections (2016)
- Le Petit Prince (2015) The King, voice acting
- Eagleheart (2010) Gleeko
- Funny or Die Presents... (2010) Robert Rubbie
- The Number 23 (2006) Dr. Sirius Leary, not listed in credits
- Matthew Gray Gubler's Life Aquatic Intern Journal (2005) играет самого себя
- Justice League Unlimited (2004) Toyman
- The Life Aquatic with Steve Zissou (2004) Bill Ubell
- Imaginary Witness: Hollywood and the Holocaust (2004) хроника
- The Big Empty (2003) Neely
- Sunday Morning Shootout (2003) играет самого себя
- Raw Iron: The Making of «Pumping Iron» (2002) играет самого себя, хроника, not listed in credits
- Made (2001) Interior Decorator, not listed in credits
- South of Heaven, West of Hell (2000) Agent Otts
- Coyote Ugly (2000) Romero
- Pollock (2000) Howard Putzel
- Static Shock (2000) Toyman
- But I'm a Cheerleader (1999)
- Dogma (1999) John Doe Jersey
- The Million Dollar Hotel (1999)
- I Woke Up Early the Day I Died (1998) Shopkeeper
- Sweet Jane (1998) Dr. Geiler
- Gun (1997) Lazy Eye Pete
- Jitters (1997) Michael
- Superman (1996) The Toyman
- Heat (1995) Solenko, Restaurant Manager, not listed in credits
- The Mask (1995) Tempest
- Crazy for a Kiss (1995) Dr. Webb
- Theodore Rex (1995) Spinner
- Girl in the Cadillac (1995) Bud
- And the Band Played On (1993) Antique shop owner
- Bob (1992) Malcolm Tibbets
- Batman: The Animated Series (1992) Josiah Wormwood
- Carol Leifer: Gaudy, Bawdy & Blue (1992) Squid Jr.
- Ted & Venus (1991) Ted Whitley
- Brain Dead (1990) Jack Halsey
- Tom & Jerry Kids Show (1990)
- Going Under (1990) McNally, not listed in credits
- The Chocolate War (1988) Brother Jacques
- Martini Ranch: Reach (1988) Crazy Local
- Out of the Dark (1988) Doug Stringer
- Midnight Caller (1988) Gaddis
- Love at Stake (1987) Parson Babcock
- Bates Motel (1987) Alex West
- Telephone (1986)
- Invaders from Mars (1986) Mark Weinstein
- Sledge Hammer! (1986) Zeff Campbell
- The Twilight Zone (1985) Willy Gardner
- Sunday Night Live (1984) играет самого себя - Master of Ceremonies (M.C.)
- Maria's Lovers (1984) Harvey
- The Secret Diary of Sigmund Freud (1984) Sigmund Freud
- Electric Dreams (1984) Edgar, voice acting
- The Hitchhiker (1983) Wax
- Hysterical (1983) Dr. John
- Tales from the Darkside (1983) Abe North
- Love Letters (1983)
- Night of 100 Stars (1982) играет самого себя
- Faerie Tale Theatre (1982) Music Master
- She Dances Alone (1981) Director
- Brave New World (1980) Bernard Marx
- Die Laughing (1980) Mueller
- Son of Hitler (1978) Willi Hitler
- Why Shoot the Teacher? (1977) Max Brown
- Bernice Bobs Her Hair (1976) Warren
- Pumping Iron (1976) играет самого себя (scenes deleted)
- Roma drogata: la polizia non può intervenire (1975) Massimo Monaldi
- Harold and Maude (1971) Harold
- The Traveling Executioner (1970) Jimmy Croft
- Gas! -Or- It Became Necessary to Destroy the World in Order to Save It. (1970) Hooper
- The Strawberry Statement (1970) Elliot - Coxswain
- MASH (1969) Pvt. Boone
- The Governor & J.J. (1969) Marvin Harris
- Room 222 (1969) Jerry Shaffer
- Sweet Charity (1969) Flower Child, not listed in credits
- Up the Down Staircase (1967) Student, not listed in credits
- The Doctors (1963) Delivery Boy, not listed in credits
Director (1 credits)
Writer (1 credits)
