text: Here Come the Brides (1968–1970) - Aaron Stempel
  Mission: Impossible: "Nitro" (1969) - Aristo Skora
  Hawaii Five-O: "To Hell with Babe Ruth" (1969) - Yoshio Nagata
  Mission: Impossible: "The Rebel" (1970) - Colonel Bakram
  Hawaii Five-O: "Will the Real Mr. Winkler Please Die" (Season 5, episode 19, 1973) - Rogloff
  Star Trek: The Animated Series: "Yesteryear" (1973) - Sarek (voice)
  Mannix: "Desert Run" (1973) - Hal Morgan
  Planet of the Apes: "TV Series" (1974) - General Urko
  Hawaii Five-O: "Secret Witness" (1974) - Dan Bok
  Little House on the Prairie: "Journey in the Spring" (1976) - Peter Ingalls
  The Bob Newhart Show: "Carlin's New Suit" (1977) - Earl Stanley Plummer
  Hawaii Five-O: "You Don't See Many Pirates These Days" (1977) - Commander Hawkins
  The Secret Empire (TV series) (1979) - Emperor Thorval
  The Incredible Hulk (TV series) (1979) - Mr. Slater
  Buck Rogers in the 25th Century: "Journey to Oasis" (1981) - Ambassador Duvoe
  Otherworld "The Zone Troopers Build Men" (1985) - Perel Sightings
  Star Trek: The Next Generation: "Sarek" (1990) - Sarek
  Star Trek: The Next Generation: "Unification: Part 1" (1991) - Sarek
  In the Heat of the Night: "Legacy" (1993) - Horrace Sloan (final appearance)
  Amazing Space on TLC (1993)