Acting

1987

as Gen. Sam Houston

1986		The Canadian Conspiracy
1986		Noah's Ark as Noah (voice)
1986		Vasectomy: A Delicate Matter as Theo

1983

1982

as Grandfather (voice)

1981

as Adama

1980		A Time for Miracles as Bishop John Carroll
1980		Klondike Fever as Inspector Sam Steele

1979		A Walking Tour of Sesame Street as Ben Cartwright (archive footage) (uncredited)
1979		Mission Galactica: The Cylon Attack as Cmdr. Adama

1978		The Little Brown Burro as Storyteller (voice)
1978		Battlestar Galactica as Commander Adama
1978		The Bastard as Bishop Francis
1978		The Case of the Baltimore Girls as Wade Griffin

1977		Yabba Dabba Doo! The Happy World of Hanna-Barbera as Self
1977		The Trial of Lee Harvey Oswald as Matthew Arnold Watson
1977		SST: Death Flight as Marshall Cole

1975		Man on the Outside as Wade Griffin
1975		Nevada Smith as Jonas Cord
1975		Wings in the Wilderness as Self
1975		High Country Calling

1974		Earthquake as Sam Royce
1974		Rex Harrison Presents Stories of Love as Hercule

1972		The Legend of Amaluk: An Arctic Journey as Narrator
1972		Death Follows a Psycho
1972		The Special London Bridge Special as Fiddler on the Roof

1971

as Peter Randall

1970		A Place in History as Narrator
1970		Ride the Wind as Ben Cartwright
1970		A Man for Loving as James Beal
1970		The Gifts as Narrator

1969

as Peter Vanin

1968		The Dean Martin Christmas Show as Self (uncredited)
1968		A Way Out of the Wilderness as Narrator
1968		Rowan & Martin At the Movies as Self

1966

1962

as Self

1959		The Hangman as Clem J. Cummings
1959		The Trap as Davis

1958		The Buccaneer as Mercier
1958		The Last of the Fast Guns as Michael O'Reilly
1958		The Gift of Love as Grant Allan

1957		Peyton Place as District Attorney
1957		The Hard Man as Rice Martin
1957		The Edge of Innocence as Lowell Williams
1957		Mayerling as Emperor's Aide

1956

as Mr. Hanson

1955

as Benjamin Costain

1954

as Peter

1953		Social-Sex Attitudes in Adolescence as narrator
1953		1984 as O'Brien
1953		Farewell Oak Street as Narrator
1953		Meaning Of Adolescence as Narrator
1953		Age of Turmoil as Narrator

1951

as Self - Narrator (voice)

1950

as Self - Narration (voice)

1949		White Fortress as Self - Narrator
1949		A Capital Plan as Narrator

1948

as Narrator

1947		Tomorrow's Citizens as Narrator
1947		Johnny at the Fair

1945		Headline Hunters as Narrator (voice)
1945		Suffer Little Children as Himself - Narrator
1945		Gateway to Asia as Narrator (voice)
1945		The War Is Over as Narrator
1945		Now—The Peace as Narrator (uncredited)
1945		Ordeal by Ice as Narrator (voice)

1944		Our Northern Neighbour as Narrator (voice)
1944		Look to the North as Narrator (voice)
1944		Global Air Routes as Narrator (voice)
1944		Trans-Canada Express as Narrator (voice)
1944		Train Busters as Narrator (voice)
1944		Fighting Sea-Fleas as Narrator (voice)
1944		Break-through as Himself - Narrator

1942

as Narrator (voice)

1941		Warclouds in the Pacific as Narrator (voice)
1941		Heroes of the Atlantic as Narrator (voice)
1941		Battle of Brains as Narrator (voice)
1941		Churchill's Island as Narrator (voice)

1940		Wings of Youth as Narrator (voice)
1940		Children from Overseas as Narrator
1940		Atlantic Patrol as Narrator
1940		Home Front as Narrator
1940		Front of Steel as Narrator