2013
The 9th Wonder of the World: The Making of 'Gorgo' as Sam Slade (archive footage)2001
2001: The Making of a Myth as Dr. Heywood R. Floyd (archive footage) (uncredited)1995
Roger Moore: A Matter of Class as Self (archive footage)1980
First Family as TV Commentator Howard1979
Buck Rogers in the 25th Century as Lt. General Preston Myers1979
Big Shamus, Little Shamus as Not available1978
Heaven Can Wait as Nuclear Reporter1977
The Hardy Boys / Nancy Drew Mysteries as Not available1977
What Really Happened to the Class of '65? as Not available1976
Quincy, M.E. as Joe Crawford1976
Gemini Man as Leonard Driscoll1976
Riding with Death as Leonard Driscoll1975
Switch as Ellis1975
The Hindenburg as Luftwaffe Colonel1974
The Six Million Dollar Man as Frederick Collins1974
The Six Million Dollar Man as Admiral Prescott1974
Harry O as Not available1974
Busting as Mr. Weldman1973
The Magician as Peter Hayden1973
Don't Be Afraid of the Dark as Tom Henderson1972
Banacek as Dr. Stahl1971
Cannon as Not available1970
McCloud as Not available1970
The Lawyer as Paul Harrison1970
The Challengers as Brad York1969
Marcus Welby, M.D. as Paul Berwick1968
2001: A Space Odyssey as Dr. Heywood Floyd1968
Red and Blue as Trumpeter1968
The Syndicate as Burt Hickey1968
The Hand of Night as Paul Carver1967
The High Chaparral as Jack Simmons1967
The High Chaparral as Lafe Croswell1965
The F.B.I. as Tom Barber1965
The Troubleshooters as Al Stevens1965
Green Acres as Not available1965
Devils of Darkness as Paul Baxter1964
Devil Doll as Mark English1964
Blind Corner as Paul Gregory1964
Ring of Spies as Gordon Lonsdale1963
The Sentimental Agent as Not available1963
Incident at Midnight as Vince Warren1962
The Saint as Foots Fortunati1962
The Saint as Ralph Damien1961
Gorgo as Sam Slade1961
Offbeat as Layton / Steve Ross1961
Information Received as Rick Hogan1959
Whirlpool as Hermann1958
The Caine Mutiny Court-Martial as Not available1958
Dublin Nightmare as John Kevin1957
High Tide at Noon as Alec Douglas1955
Portrait of Alison as Dave Forrester1954
The Stranger Came Home as Philip Vickers1954
What Every Woman Wants as Jim Barnes1953
Appointment in London as Mac1953
Albert R.N. as Texas1953
House of Blackmail as Jimmy1953
The Yellow Balloon as Len Turner1950
They Were Not Divided as American Soldier (uncredited)1949
Give Us This Day as Giovanni