2022Way of Tomorrow: The Evolution of Science Fiction Movies— Self - (archive footage)
2018Scotty and the Secret History of Hollywood— Self (archive footage)
1991Preminger: Anatomy of a Filmmaker— actor 'Advise and 'Consent' (archive footage) (uncredited)
1989Fritz Lang, dessins d'un film— Captain Alan Thorndike (stills from Man Hunt)
1978Sextette— The Chairman
1976Two-Minute Warning— The Pickpocket
1976Won Ton Ton: The Dog Who Saved Hollywood— Grayson's Butler
1976The Lindbergh Kidnapping Case— Judge Trenchard
1976That's Entertainment, Part II— (archive footage)
1975Murder on Flight 502— Charlie Parkins
1975You Lie So Deep, My Love— Uncle Joe Padway
1975The Lion Roars Again— Self
1974The Girl on the Late, Late Show— John Pahlman
1974Live Again, Die Again— Thomas Carmichael
1974That's Entertainment!— (archive footage) (uncredited)
1973The Neptune Factor— Dr. Samuel Andrews
1973Harry in Your Pocket— Casey
1972Hava Korsanı— Sen. Arne Lindner
1972The Screaming Woman— Amos Larkin
1970The Mask of Sheba— Dr. Max van Condon
1970House on Greenapple Road— Mayor Jack Parker
1969Rascal— Sterling North (voice)
1968Komik Kız— Florenz Ziegfeld
1968A qualsiasi prezzo— Herbert Cummings
1967Warning Shot— Orville Ames
1967How I Spent My Summer Vacation— Lewis Gannet
1965Cinderella— King
1963I due colonnelli— Colonello Henderson
1963Il giorno più corto— Ernest Hemingway (uncredited)
1963Anniversary— Himself - Host
1962Big Red— James Haggin
1962Advise & Consent— Senate Majority Leader
1961Voyage to the Bottom of the Sea— Admiral Harriman Nelson
1959Meet Me in St. Louis— Alonzo Smith
1958Swiss Family Robinson— Anton (Father)
1958The All-Star Christmas Show— Self
1956Yasak Gezegen— Dr. Edward Morbius
1956These Wilder Years— James Rayburn
1956The Rack— Col. Edward W. Hall, Sr.
1955The Glass Slipper— Narrator (voice)
1955Hit the Deck— Xavier Smith
1954Deep in My Heart— J.J. Shubert
1954Men of the Fighting Lady— Cmdr. Dowling
1954The Last Time I Saw Paris— James Ellswirth
1953Rüyamdaki Kadın— Walter McBride
1953Scandal at Scourie— Patrick J. McChesney
1952The Hoaxters— Narrator (voice)
1952The Sellout— Haven D. Allridge
1952The Bad and the Beautiful— Harry Pebbel
1952Million Dollar Mermaid— Frederick Kellerman
1951The Unknown Man— Dwight Bradley Masen
1951Calling Bulldog Drummond— Major Hugh "Bulldog" Drummond
1951Soldiers Three— Col. Brunswick
1951Nereye Gidiyorsunuz?— Narrator (voice) (uncredited)
1950The Miniver Story— Clem Miniver
1949The Red Danube— Col. Michael S. 'Hooky' Nicobar
1949That Forsyte Woman— le jeune Jolyon Forsyte
1948Command Decision— Major General Roland Goodlow Kane
1948Julia Misbehaves— William Sylvester Packett
1947If Winter Comes— Mark Sabre
1946Holiday in Mexico— Jeffrey Evans
1946The Secret Heart— Chris Matthews
1945Week-End at the Waldorf— Chip Collyer
1944Mrs. Parkington— Major Augustus Parkington
1944Twenty Years After— (archive footage)
1943Madame Curie— Pierre Curie
1943The Youngest Profession— Walter Pidgeon
1942Bayan Miniver— Clem Miniver
1942White Cargo— Mr. Harry Witzel
1941Vadim O Kadar Yeşildi ki— Mr. Gruffydd
1941Blossoms in the Dust— Sam Gladney
1941Design for Scandal— Jeff Sherman
1940Karanlık Emir— William 'Will' Cantrell
1940The House Across the Bay— Tim Nolan
1940Sky Murder— Nick Carter
1940Phantom Raiders— Nick Carter
1940It's a Date— John Arlen
1940A New Romance of Celluloid: The Miracle of Sound— Self
1939Nick Carter, Master Detective— Nicholas 'Nick' Carter, aka Robert Chalmers
1939Stronger Than Desire— Tyler Flagg
1939Society Lawyer— Christopher Durant
19396,000 Enemies— Steve Donegan
1938Too Hot to Handle— Bill Dennis
1938The Girl of the Golden West— Sheriff Jack Rance
1938Listen, Darling— Richard Thurlow
1938The Shopworn Angel— Sam Bailey
1938Man-Proof— Alan Wythe
1937Saratoga— Hartley Madison
1937My Dear Miss Aldrich— Ken Morley
1937She's Dangerous— Dr. Scott Logan
1937A Girl with Ideas— Mickey McGuire
1937As Good as Married— Fraser James
1937Girl Overboard— Paul Stacey
1936Big Brown Eyes— Richard Morey
1936Fatal Lady— David Roberts
1934Journal of a Crime— Florestan
1934Good Badminton— Walter
1933The Kiss Before the Mirror— Lucy's Lover
1932Rockabye— Al Howard
1931The Hot Heiress— Clay
1931Kiss Me Again— Paul de St. Cyr
1930Going Wild— 'Ace' Benton
1930Sweet Kitty Bellairs— Lord Varney
1930Viennese Nights— Franz von Renner
1930Bride of the Regiment— Colonel Vultow
1930Show Girl in Hollywood— Premiere Emcee
1930An Intimate Dinner in Celebration of Warner Bros. Silver Jubilee— Self
1930The Gorilla— Arthur Marsden
1929Her Private Life— Ned Thayer
1929A Most Immoral Lady— Tony Williams
1929The Voice Within
1928Clothes Make the Woman— Victor Trent
1928Melody of Love— Jack Clark
1928Turn Back the Hours— Philip Drake
1928The Gateway of the Moon— Arthur Wyatt
1928Woman Wise— United States Consul
1927The Gorilla— Stevens
1927The 13th Juror— Richard Marsden
1927The Girl from Rio— Paul Sinclair
1927The Heart of Salome— Monte Carroll
1926Mannequin— Martin Innesbrook
1926Miss Nobody— Bravo
1926Old Loves and New— Clyde Lord Geradine
1926Marriage License?— Paul
1926The Outsider— Basil Owen
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