- Sledgehammer O'Possum - What's Going on Back There?
1997 Angry Purple Guy
- The Addams Family Album
1992 Lurch (archive footage)
- Flash Gordon: The Greatest Adventure of All
1982 Prince Thun (voice)
- Roar
1981 Additional Writing
- Bride of the Incredible Hulk
1980 Narrator / Hulk (voice) (uncredited)
- The Flintstones Meet Rockula and Frankenstone
1979 Frankenstone (voice)
- Dr. Strange
1978 Demon Balzaroth (voice) (uncredited)
- The Flintstones: Little Big League
1978 Officer (voice)
- Goin' Coconuts
1978 Mickey
- Godzilla
1978 Godzilla
- The Fantastic Four
1978 The Thing (voice)
- Benny & Barney: Las Vegas Undercover
1977 Jake Tuttle
- Halloween with the New Addams Family
1977 Lurch
- The Return of the Incredible Hulk
1977 Narrator / Hulk (voice)
- The Last Remake of Beau Geste
1977 Blindman
- The Incredible Hulk
1977 Narrator / Hulk (voice) (uncredited)
- Man from Atlantis
1977 Canja
- Harry and Walter Go to New York
1976 Leary
- The Bionic Woman
1976
- Poor Pretty Eddie
1975 Keno
- The Intruder
1975 Mr. Peterson
- Planet Earth
1974 Isiah
- Thunder County
1974 Renzo Gambini
- The Six Million Dollar Man
1974 Bigfoot
- The Slams
1973 Glover
- Genesis II
1973 Isiah
- Super Friends
1973 Brainiac / Black Manta (voice)
- The Addams Family
1973 Lurch (voice)
- The Harrad Experiment
1973 Screenplay
- The Limit
1972 Big Donnie
- Catch the Black Sunshine
1972 Additional Dialogue
- Scooby-Doo Meets The Addams Family
1972 Lurch (Voice)
- The New Scooby-Doo Movies
1972 Lurch (voice)
- Banacek
1972 Jerry Crawford
- Butch Cassidy and the Sundance Kid
1969 Harvey Logan
- Mackenna's Gold
1969 Hachita
- The New Adventures of Huckleberry Finn
1968 Injun Joe
- Jack and the Beanstalk
1967 The Giant (voice)
- Birdman and the Galaxy Trio
1967 Meteor Man (voice)
- Mannix
1967
- The Herculoids
1967
- Shazzan
1967
- Super President
1967 Spy Shadow (voice)
- Mr. Terrific
1967 Bojo
- Ironside
1967 Wrestler
- Space Ghost and Dino Boy
1966 Metallus / Tansut (voice)
- Tarzan
1966
- Star Trek
1966 Gorn (voice)
- The Pruitts of Southampton
1966 Maxie
- Batman
1966 Lurch (uncredited)
- I Dream of Jeannie
1965 Habib
- Lost in Space
1965 Slave
- Laredo
1965
- Daniel Boone
1964 Gentle Sam
- The Addams Family
1964 Lurch
- The Man from U.N.C.L.E.
1964 Edgar
- Bonanza
1959 Garth
