Credits

• 2016 · Affections as
• 2015 · The Little Prince as The King (voice)
• 2013 · The Source Family as Self (archive footage)
• 2007 · The Number 23 as Dr. Sirius Leary
• 2005 · This Is an Adventure as Self
• 2005 · Matthew Gray Gubler's Life Aquatic Intern Journal as Self
• 2004 · The Life Aquatic with Steve Zissou as Bill Ubell
• 2004 · Justice League Unlimited as Toyman (voice)
• 2003 · Arrested Development as Himself
• 2003 · The Big Empty as Neely
• 2002 · Raw Iron: The Making of 'Pumping Iron' as Self (archive footage)
• 2000 · Static Shock as Toyman (voice)
• 2000 · Pollock as Howard Putzel
• 2000 · Coyote Ugly as Romero
• 2000 · But I'm a Cheerleader as Peter
• 2000 · The Million Dollar Hotel as Shorty
• 2000 · South of Heaven, West of Hell as Agent Otts
• 1999 · Dogma as John Doe Jersey
• 1998 · I Woke Up Early the Day I Died as Shopkeeper
• 1998 · Sweet Jane as Dr. Geiler
• 1997 · Jitters as Michael
• 1996 · Superman: The Animated Series as The Toyman (voice)
• 1995 · Heat as Solenko, Restaurant Manager (uncredited)
• 1995 · Theodore Rex as Spinner
• 1995 · Girl in the Cadillac as Bud
• 1995 · Crazy for a Kiss as Dr. Webb
• 1993 · And the Band Played On as Antique Shop Owner
• 1992 · Carol Leifer: Gaudy, Bawdy & Blue as Squid Jr.
• 1992 · Bob as
• 1992 · Batman: The Animated Series as Josiah Wormwood (voice)
• 1992 · Jack's Place as
• 1991 · Ted & Venus as Ted Whitley
• 1990 · Dream On as Creepy Guy
• 1990 · Brain Dead as Jack Halsey
• 1988 · The Chocolate War as Brother Jacques
• 1988 · Out of the Dark as Dave Stringer
• 1988 · Out of the Dark as Stringer
• 1987 · Love at Stake as Parson Babcock
• 1987 · Bates Motel as Alex West
• 1986 · Sledge Hammer! as
• 1986 · Invaders from Mars as Mark Weinstein
• 1986 · Telephone as
• 1985 · The Twilight Zone as
• 1984 · Maria's Lovers as Harvey
• 1984 · Tales from the Darkside as Abe North
• 1984 · Electric Dreams as Edgar (voice)
• 1984 · The Secret Diary of Sigmund Freud as Sigmund Freud
• 1983 · The Hitchhiker as Wax
• 1983 · The Nightingale as Music Master
• 1983 · Love Letters as Danny
• 1982 · Hysterical as Dr. John
• 1982 · Rumpelstiltskin as The Page
• 1982 · Faerie Tale Theatre as Music Master
• 1982 · Faerie Tale Theatre as The Page
• 1982 · Night of 100 Stars as Self
• 1981 · She Dances Alone as film director
• 1980 · Die Laughing as Mueller
• 1980 · Brave New World as Bernard Marx
• 1979 · Tales of the Unexpected as Newt
• 1979 · Son of Hitler as Willi Hitler
• 1977 · Why Shoot the Teacher? as Max Brown
• 1977 · Pumping Iron as Self
• 1976 · Bernice Bobs Her Hair as Warren
• 1975 · Hallucination Strip as Massimo Monaldi
• 1971 · Harold and Maude as Harold
• 1970 · Brewster McCloud as Brewster
• 1970 · The Traveling Executioner as Jimmy Croft
• 1970 · Gas! -Or- It Became Necessary to Destroy the World in Order to Save It. as Hooper
• 1970 · The Strawberry Statement as Elliot
• 1970 · M*A*S*H as Pvt. Warren Boone
• 1969 · Sweet Charity as Flower Child (uncredited)
• 1967 · Up the Down Staircase as Student