Acting

2004

as Self (archive footage)

1994

as Professor Cabel

1991

as actor 'Advise and 'Consent' (archive footage) (uncredited)

1989

as Martin

1986

as John Pace

1984		Don Camillo as Doc
1984		Bruised Celluloid as Himself

1981

as Candy

1980

as Bob Hollander

1979

as Dan Miller

1978		Suddenly, Love as Mr. Graham
1978		The Story of Noah as Noah
1978		Battlestar Galactica as President Adar
1978		Damien: Omen II as Bill Atherton

1977

as Com. Joseph Beckerman

1976		Francis Gary Powers: The True Story of the U-2 Spy Incident as Allen Dulles
1976		That's Entertainment, Part II as (archive footage)

1974		Heatwave! as Dr. Grayson
1974		The Questor Tapes as Vaslovik

1973		Battle for the Planet of the Apes as Mandemus
1973		The Stranger as Prof. Dylan MacAuley

1972		The Man as Noah Calvin
1972		The Biscuit Eater as Mr. Ames
1972		She Waits as Dr. Sam Carpenter

1971

as President Charles Carter Durant

1969

as Dr. Andrew Swanson

1968

as The Governor

1964

as 'Mac' McAllister

1962

as The Vice President

1953		Donovan's Brain as Dr. Patrick J. Cory
1953		No Escape as John Howard Tracy

1951

as Capt. Hunt

1950

as Lin Vanner / Lindley Brown

1948

as Dr. Robert Richardson

1947		The Unfaithful as Larry Hannaford
1947		The Way of Peace as Narrator (voice)

1946		Blow-Ups of 1946 as Self
1946		The Dark Mirror as Dr. Scott Elliott

1942		Fingers at the Window as Oliver Duffy
1942		Dr. Kildare's Victory as Dr. James Kildare

1941		Dr. Kildare's Wedding Day as Dr. James Kildare
1941		The People Vs. Dr. Kildare as Dr. James Kildare
1941		Maisie Was a Lady as Bob Rawlston

1940		Dr. Kildare's Crisis as Dr. James Kildare
1940		A New Romance of Celluloid: The Miracle of Sound as Self
1940		Dr. Kildare Goes Home as Dr. James Kildare
1940		The Golden Fleecing as Henry Twinkle
1940		Hollywood: Style Center of the World as Self
1940		Dr. Kildare's Strange Case as Dr. James Kildare

1939		Remember? as Sky Ames
1939		The Secret of Dr. Kildare as Dr. James Kildare
1939		These Glamour Girls as Philip S. Griswold III
1939		From the Ends of the Earth as Self
1939		Calling Dr. Kildare as Dr. James Kildare
1939		Broadway Serenade as James Geoffrey 'Jimmy' Seymour
1939		The Ice Follies of 1939 as Eddie Burgess

1938		Spring Madness as Sam Thatcher
1938		Young Dr. Kildare as Dr. James Kildare
1938		Rich Man, Poor Girl as Henry Thayer
1938		Holiday as Ned Seton
1938		King of the Newsboys as Jerry Flynn
1938		Scandal Street as Joe McKnight

1937		Hold 'Em Navy as Tommy Graham
1937		The Last Train from Madrid as Bill Dexter
1937		The Crime Nobody Saw as Nick Milburn

1936		Murder with Pictures as Kent Murdock
1936		Lady Be Careful as Chester aka Dynamite
1936		Shakedown as Bob Sanderson
1936		Panic on the Air as Jerry Franklin
1936		The Leathernecks Have Landed as Woodruff 'Woody' Davis

1935		Silk Hat Kid as Eddie Howard
1935		Spring Tonic as Caleb Enix
1935		The Lottery Lover as Cadet Frank Harrington

1934		Servants' Entrance as Erik Landstrom
1934		She Learned About Sailors as Larry Wilson
1934		Cross Country Cruise as Norman Winthrop

1933		My Weakness as Ronnie Gregory
1933		Don't Bet on Love as Bill McCaffrey
1933		State Fair as Pat Gilbert

1932		Okay, America! as Larry Wayne
1932		Night World as Michael Rand
1932		The Cohens and Kellys in Hollywood as Lew Ayres
1932		The Impatient Maiden as Dr. Myron Brown

1931		Heaven on Earth as States
1931		The Spirit of Notre Dame as Edward Aloysius "Bucky" O'Brian
1931		Up for Murder as Robert Marshall
1931		Iron Man as Kid Mason
1931		Many a Slip as Jerry Brooks

1930		East Is West as Billy Benson
1930		The Doorway to Hell as Louie Ricarno
1930		Common Clay as Hugh Fullerton
1930		All Quiet on the Western Front as Paul Bäumer

1929		The Kiss as Pierre Lassalle
1929		Big News as Copyboy (uncredited)
1929		The Sophomore as Sophomore Fraternity Brother (uncredited)

Directing

1976

… Director

1936

… Director