1995

(1 episode) as Principal Kern

1993		The X-Files (6 episodes) as William Mulder
1993		Time Trax (23 episodes) as Mordecai Sahmbi (2 episodes)

1988

(2 episodes) as Admiral Beasley

1987

(1 episode) as Mr. Goodman

1984

(1 episode) as David North (1 episode) as Sergei Chaloff

1982

(1 episode)

1979

(1 episode)

1978		The Eddie Capra Mysteries (1 episode)
1978		Dallas (1 episode) as Dr. Miles Pearson

1977

(1 episode)

1976		Quincy, M.E. (1 episode)
1976		Captains and the Kings (8 episodes) as Clair Montrose
1976		Charlie's Angels (1 episode) as Peter Russell
1976		Rich Man, Poor Man - Book II (9 episodes) as Arthur Raymond
1976		Baa Baa Black Sheep (1 episode) as Col. Mathis

1975

(1 episode) as Bates

1974

(1 episode)

1972		The Waltons (1 episode)
1972		Banacek (1 episode) as Robert Morgan

1971

(1 episode) as Cyrano de Bergerac (1 episode) as Zakhar

1968

(1 episode) as Greg Lawrence

1967		Mannix (3 episodes)
1967		Judd for the Defense (1 episode)

1966		Mission: Impossible (1 episode) as Arthur Warner
1966		Wojeck (2 episodes) as Bob Eden

1965		The F.B.I. (1 episode) as Robert Pollard
1965		Run for Your Life (1 episode) as Burton Wells
1965		Moment of Truth (220 episodes) as Vincent Conway

1959

(1 episode)

1951

(1 episode) as George Riley (1 episode)