Acting

1978		The Fantastic Four (13 episodes) as The Thing (voice)
1978		Challenge of the Super Friends (32 episodes)
1978		Jana of the Jungle (13 episodes)
1978		Godzilla (26 episodes) as Godzilla

1977		The Incredible Hulk (3 episodes) as Narrator (voice) (uncredited) (1 episode) as Narrator / Hulk (voice) (34 episodes) as Narrator / Hulk (voice) (uncredited)
1977		Man from Atlantis (1 episode) as Canja
1977		The All-New Super Friends Hour (60 episodes)

1976

(1 episode)

1974		Chico and the Man (1 episode)
1974		The Six Million Dollar Man (2 episodes) as Bigfoot

1973		Super Friends (32 episodes) as Brainiac (voice) / Black Manta (voice)
1973		The Addams Family (16 episodes) as Lurch (voice)

1972		Banacek (1 episode) as Jerry Crawford
1972		The New Scooby-Doo Movies (1 episode) as Lurch (voice)

1968

(20 episodes) as Injun Joe

1967		Super President (1 episode) as Spy Shadow (voice)
1967		Mannix (1 episode)
1967		The Herculoids (36 episodes)
1967		Birdman and the Galaxy Trio (60 episodes) as Meteor Man (voice)
1967		Shazzan (2 episodes)
1967		Ironside (1 episode) as Wrestler
1967		Mr. Terrific (1 episode) as Bojo

1966		Frankenstein, Jr. and The Impossibles (54 episodes)
1966		Space Ghost and Dino Boy (60 episodes) as Metallus / Tansut (voice)
1966		Star Trek (1 episode) as Balok's puppet (voice) (1 episode) as Gorn (voice) (1 episode) as Ruk
1966		Tarzan (1 episode)
1966		The Pruitts of Southampton (1 episode) as Maxie
1966		Batman (1 episode) as Lurch

1965		I Dream of Jeannie (1 episode) as Hamid (1 episode) as Habib
1965		Laredo (1 episode)
1965		Lost in Space (1 episode) as Slave

1964		Daniel Boone (1 episode) as Gentle Sam
1964		The Addams Family (64 episodes) as Lurch
1964		Shindig! (1 episode) as Self

1962

(1 episode)

1959

(1 episode) as Garth