Credits

• 2026 · Attack of the Killer Tomatoes: Organic Intelligence as Prof. Mortimer Gangreen
• 2023 · Screaming Soup Presents: Attack of the Killer Tomatoes Retrospective as Self
• 2016 · Justice League Action as Uncle Dudley (voice)
• 2005 · Betaville as President Sender
• 2005 · School of Life as Norman Warner
• 2000 · As Told by Ginger as
• 2000 · As Told by Ginger as Dave Bishop (voice)
• 1998 · The Making of 'The Frighteners' as Self
• 1998 · Becker as Richard Wilson
• 1998 · The Hughleys as Mr. Crump
• 1998 · The Wild Thornberrys as The Great Bangaboo (voice)
• 1997 · Recess as Supt. Skinner (voice)
• 1996 · The Frighteners as The Judge
• 1995 · The Twisted Tales of Felix the Cat as (voice)
• 1995 · Pinky and the Brain as
• 1995 · Harrison Bergeron as Golf Announcer
• 1994 · Runaway Daughters as Fred
• 1994 · Rebel Highway as Minuteman (Fred)
• 1994 · The Silence of the Hams as The Ranger
• 1994 · Duckman as Terry Duke Tetzloff (voice)
• 1994 · Huck and the King of Hearts as Zach
• 1994 · Burke's Law as Alexander the Great
• 1993 · The Nanny as Dr. Roberts
• 1993 · Problem Child as Additional Voices (voice)
• 1993 · The Adventures of Brisco County, Jr. as Prof. Albert Wickwire
• 1993 · Stepmonster as Minister
• 1992 · The Addams Family Album as Self / Gomez Addams (archive footage)
• 1992 · Killer Tomatoes Eat France! as Prof. Mortimer Gangreen
• 1992 · Mad About You as John Astin
• 1992 · The Addams Family as Gomez Addams (voice)
• 1991 · Killer Tomatoes Strike Back! as Jeronahew/Prof. Gangreen
• 1991 · Halloween Monster Bash as Self
• 1991 · Step by Step as George Humphries
• 1991 · Eerie, Indiana as Radford
• 1991 · Taz-Mania as Bull Gator (voice)
• 1990 · They Came from Outer Space as Neville Nessen
• 1990 · Attack of the Killer Tomatoes as Dr. Gangreen (voice)
• 1990 · Gremlins 2: The New Batch as Janitor
• 1989 · Night Life as Verlin Flanders
• 1989 · The Saint: The Blue Dulac as George Lafosse
• 1989 · Tales from the Crypt as Nelson Halliwell
• 1988 · Mystery Magical Special as John Astin
• 1988 · Return of the Killer Tomatoes! as Prof. Gangreen
• 1987 · Teen Wolf Too as Dean Dunn
• 1987 · Harry Anderson's Sideshow as Self
• 1987 · The Charmings as
• 1986 · Body Slam as Scotty
• 1986 · Mr. Boogedy as Neil Witherspoon
• 1985 · Mary as Ed LaSalle
• 1985 · National Lampoon's European Vacation as Kent
• 1985 · Otherworld as Akin
• 1984 · Charles in Charge as Uncle Joe
• 1984 · Murder, She Wrote as Harry Pierce
• 1984 · Murder, She Wrote as Fritz Randall
• 1984 · Murder, She Wrote as Ross Hayley
• 1984 · Night Court as Kenny
• 1984 · Night Court as Buddy Ryan
• 1984 · Riptide as Baxter Bernard
• 1982 · St. Elsewhere as Kevin
• 1981 · Simon & Simon as
• 1979 · The Facts of Life as
• 1978 · Diff'rent Strokes as
• 1977 · Halloween with the New Addams Family as Gomez Addams
• 1977 · The Love Boat as David Crothers
• 1977 · Operation Petticoat as Lt. Commander Matthew Sherman
• 1976 · Freaky Friday as Bill Andrews
• 1975 · Welcome Back, Kotter as
• 1975 · The Bob Crane Show as
• 1975 · The Dream Makers as Manny Wheeler
• 1974 · Only with Married Men as Dr. Harvey Osterman
• 1974 · Police Woman as Donny
• 1974 · The Horror Hall of Fame: A Monster Salute as Self
• 1974 · Hard Day at Blue Nose as Greenburg
• 1974 · Skyway to Death as Andrew Tustin
• 1973 · Brothers O'Toole as Michael O'Toole
• 1973 · Police Story as
• 1972 · Scooby-Doo Meets The Addams Family as Gomez Addams (Voice)
• 1972 · Ghost Story as Fred Colby
• 1972 · Temperatures Rising as Russo
• 1972 · The New Scooby-Doo Movies as Gomez Addams (voice)
• 1972 · Every Little Crook and Nanny as Vito Garbugli
• 1972 · Get to Know Your Rabbit as Mr. Turnbull
• 1972 · Evil Roy Slade as Evil Roy Slade
• 1972 · Wacky Taxi as Pepper
• 1971 · Two on a Bench as Dr. Stanley Remington
• 1971 · Bunny O'Hare as Ad O'Hare
• 1971 · McMillan & Wife as Sykes
• 1970 · Night Gallery as Munsch
• 1970 · Night Gallery as Randy Miller
• 1970 · Night Gallery as Jonathan (segment "Pamela's Voice")
• 1970 · The Partridge Family as Millionaire Sidney Rose
• 1970 · The Odd Couple as Beau Biffingham
• 1969 · Viva Max! as Sergeant Valdez
• 1969 · Love, American Style as Alfred
• 1969 · Love, American Style as Charlie Mancini
• 1968 · Candy as T.M. Christian / Jack Christian
• 1968 · The Doris Day Show as Jim Keatley
• 1968 · Prelude as
• 1967 · The Flying Nun as
• 1967 · He & She as Dr. Melvin Krillman
• 1967 · The Spirit Is Willing as Dr. Frieden
• 1966 · CBS Playhouse as Perry Clark
• 1966 · Occasional Wife as
• 1966 · Hey Landlord! as
• 1966 · The Pruitts of Southampton as Rudy Pruitt
• 1966 · Batman as The Riddler
• 1965 · The Wild Wild West as
• 1964 · The Addams Family as Gomez Addams
• 1963 · Move Over, Darling as Clyde Prokey
• 1963 · The Wheeler Dealers as Hector Vanson
• 1963 · The Danny Kaye Show as Self
• 1963 · The Greatest Show on Earth as Bartley
• 1962 · Billy Rose's Jumbo as Pilot
• 1962 · Period of Adjustment as Smoky Anderson (uncredited)
• 1962 · I'm Dickens, He's Fenster as Harry Dickens
• 1962 · The Virginian as Slick Driscoll
• 1962 · That Touch of Mink as Mr. Everett Beasley
• 1961 · West Side Story as Glad Hand (uncredited)
• 1961 · The Mike Douglas Show as Self
• 1961 · Ben Casey as
• 1961 · Hazel as Hal Gordon
• 1961 · 87th Precinct as Cassidy
• 1961 · The Asphalt Jungle as
• 1960 · Peter Loves Mary as Joe
• 1960 · Route 66 as Gas Attendant
• 1960 · Route 66 as Benson
• 1960 · Outlaws as
• 1960 · Checkmate as Jim Poole
• 1960 · The Pusher as Detective
• 1959 · Dennis the Menace as
• 1959 · The Twilight Zone as Charlie
• 1958 · 77 Sunset Strip as Martin Grosch
• 1958 · The Donna Reed Show as
• 1958 · The Kiss as Male Necker
• 1957 · Maverick as Joe Lambert
• 1957 · The Night America Trembled as Reporter
• 1955 · Gunsmoke as Hard-Luck Henry Haggen