Acting

1983

as Major Palgrave

1980

as D. Leroy Wintermore

1979

as Hobart

1974

as Lord Canterville

1973		The Six Million Dollar Man: The Solid Gold Kidnapping as Chairman of the Board
1973		Terror in the Wax Museum as Inspector Daniels

1970		The Brotherhood of the Bell as Harry Masters
1970		Beneath the Planet of the Apes as Dr. Zaius

1969		Operation Heartbeat as Dr. Easler
1969		The Body Stealers as Dr. Matthews / Alien

1968		Rosemary's Baby as Hutch
1968		Tarzan and the Four O'Clock Army as Sir Basil Bertram
1968		Planet of the Apes as Dr. Zaius

1967		Jack of Diamonds as Nicolai Vodkine
1967		Los traidores de San Ángel

1966

as Sir Norman Swickert

1965		The War Lord as Priest
1965		The Game as Alverian
1965		Enter Hamlet as Hamlet

1964

as Macbeth

1960

as Prospero

1958

as Narrator

1957

as Malvolio

1955

as Narrator

1953

as Arthur Sullivan

1952

as Caesar

1951

as Henry Springer Elcott

1935		Scrooge as Poor Man
1935		Checkmate as Phillip Allen

1933

as Didier

1932		Marry Me as Paul Hart
1932		Wedding Rehearsal as George Thompson aka Tootles

1931

as Derek

1930		Should a Doctor Tell? as Roger Smith
1930		Raise the Roof as Rodney Langford

1929

as Alan Langford

Production

1955

… Producer