Credits

• 2018 · Scotty and the Secret History of Hollywood as Self (archive footage)
• 1991 · Preminger: Anatomy of a Filmmaker as actor 'Advise and 'Consent' (archive footage) (uncredited)
• 1989 · Fritz Lang, drawings for a film as Captain Alan Thorndike (stills from Man Hunt)
• 1978 · Sextette as The Chairman
• 1976 · Two-Minute Warning as The Pickpocket
• 1976 · Gibbsville as
• 1976 · Won Ton Ton: The Dog Who Saved Hollywood as Grayson's Butler
• 1976 · That's Entertainment, Part II as (archive footage)
• 1976 · The Lindbergh Kidnapping Case as Judge Trenchard
• 1975 · Murder on Flight 502 as Charlie Parkins
• 1975 · You Lie So Deep, My Love as Uncle Joe Padway
• 1975 · The Lion Roars Again as Self
• 1974 · That's Entertainment! as (archive footage) (uncredited)
• 1974 · The Girl on the Late, Late Show as John Pahlman
• 1974 · Live Again, Die Again as Thomas Carmichael
• 1973 · The Snoop Sisters as Keith Follett
• 1973 · Harry in Your Pocket as Casey
• 1973 · The Neptune Factor as Dr. Samuel Andrews
• 1973 · The American Film Institute Salute to ... as Self
• 1972 · Skyjacked as Sen. Arne Lindner
• 1972 · The Screaming Woman as Dr. Amos Larkin
• 1970 · The Mask of Sheba as Dr. Max van Condon
• 1970 · House on Greenapple Road as Mayor Jack Parker
• 1969 · Rascal as Sterling North (voice)
• 1968 · Funny Girl as Florenz Ziegfeld
• 1968 · The Vatican Affair as Herbert Cummings
• 1967 · Warning Shot as Orville Ames
• 1967 · How I Spent My Summer Vacation as Lewis Gannet
• 1965 · The F.B.I. as Leo Roland
• 1965 · Cinderella as King
• 1964 · Daniel Boone as Lord Dunsmore
• 1963 · Burke's Law as B.G. Perkins
• 1963 · Breaking Point as
• 1963 · The Shortest Day as Ernest Hemingway (uncredited)
• 1963 · Two Colonels as Colonello Henderson
• 1962 · Advise & Consent as Senate Majority Leader
• 1962 · Big Red as James Haggin
• 1961 · Dr. Kildare as Dr. Charles Priest
• 1961 · Voyage to the Bottom of the Sea as Admiral Harriman Nelson
• 1960 · Checkmate as John Baker
• 1959 · Meet Me in St. Louis as Alonzo Smith
• 1959 · Rawhide as General Augustus Perry
• 1958 · Swiss Family Robinson as Father
• 1957 · Perry Mason as Sherman Hatfield
• 1957 · Tonight Starring Jack Paar as Self
• 1956 · The Rack as Col. Edward W. Hall, Sr.
• 1956 · Dick Powell's Zane Grey Theatre as Jess Clark
• 1956 · Dick Powell's Zane Grey Theatre as Dave King
• 1956 · The Dinah Shore Chevy Show as Self
• 1956 · These Wilder Years as James Rayburn
• 1956 · Forbidden Planet as Dr. Edward Morbius
• 1955 · The Glass Slipper as Narrator (voice)
• 1955 · Hit the Deck as Rear Adm. Daniel Xavier Smith
• 1954 · Deep in My Heart as J.J. Shubert
• 1954 · The Last Time I Saw Paris as James Ellswirth
• 1954 · Men of the Fighting Lady as Cmdr. Dowling
• 1954 · Executive Suite as Frederick Y. Alderson
• 1953 · Dream Wife as Walter McBride
• 1953 · Scandal at Scourie as Patrick J. McChesney
• 1952 · The Bad and the Beautiful as Harry Pebbel
• 1952 · The Hoaxters as Narrator (voice)
• 1952 · Million Dollar Mermaid as Frederick Kellerman
• 1952 · The Sellout as Haven D. Allridge
• 1951 · The Unknown Man as Dwight Bradley 'Brad' Masen
• 1951 · Quo Vadis as Narrator (voice) (uncredited)
• 1951 · Calling Bulldog Drummond as Major Hugh "Bulldog" Drummond
• 1951 · Soldiers Three as Col. Brunswick
• 1950 · The Miniver Story as Clem Miniver
• 1950 · What's My Line? as Self - Mystery Guest
• 1950 · What's My Line? as Self - Panelist
• 1949 · That Forsyte Woman as le jeune Jolyon Forsyte
• 1949 · The Red Danube as Col. Michael S. 'Hooky' Nicobar
• 1948 · Command Decision as Major General Roland Goodlow Kane
• 1948 · Julia Misbehaves as William Sylvester Packett
• 1948 · The Ed Sullivan Show as Self
• 1947 · If Winter Comes as Mark Sabre
• 1946 · The Secret Heart as Chris Matthews
• 1946 · Holiday in Mexico as Jeffrey Evans
• 1945 · Week-End at the Waldorf as Chip Collyer
• 1944 · Mrs. Parkington as Major Augustus Parkington
• 1944 · Golden Globe Awards as Self - Presenter
• 1944 · Twenty Years After as (archive footage)
• 1943 · Madame Curie as Pierre Curie
• 1943 · The Youngest Profession as Walter Pidgeon
• 1942 · White Cargo as Mr. Harry Witzel
• 1942 · Mrs. Miniver as Clem Miniver
• 1941 · Design for Scandal as Jeff Sherman
• 1941 · How Green Was My Valley as Mr. Gruffydd
• 1941 · Blossoms in the Dust as Sam Gladney
• 1941 · Man Hunt as Captain Alan Thorndike
• 1940 · Flight Command as Squadron Commander Billy Gary
• 1940 · A New Romance of Celluloid: The Miracle of Sound as Self
• 1940 · Sky Murder as Nick Carter
• 1940 · Phantom Raiders as Nick Carter
• 1940 · Dark Command as William 'Will' Cantrell
• 1940 · It's a Date as John Arlen
• 1940 · The House Across the Bay as Tim Nolan
• 1939 · Nick Carter, Master Detective as Nicholas 'Nick' Carter, aka Robert Chalmers
• 1939 · Stronger Than Desire as Tyler Flagg
• 1939 · 6,000 Enemies as Steve Donegan
• 1939 · Society Lawyer as Christopher Durant
• 1938 · Listen, Darling as Richard Thurlow
• 1938 · Too Hot to Handle as Bill Dennis
• 1938 · The Shopworn Angel as Sam Bailey
• 1938 · The Girl of the Golden West as Sheriff Jack Rance
• 1938 · Man-Proof as Alan Wythe
• 1937 · A Girl with Ideas as Mickey McGuire
• 1937 · My Dear Miss Aldrich as Ken Morley
• 1937 · Saratoga as Hartley Madison
• 1937 · As Good as Married as Fraser James
• 1937 · Girl Overboard as Paul Stacey
• 1937 · She's Dangerous as Dr. Scott Logan
• 1936 · Fatal Lady as David Roberts
• 1936 · Big Brown Eyes as Richard Morey
• 1934 · Good Badminton as Walter
• 1934 · Journal of a Crime as Florestan
• 1933 · The Kiss Before the Mirror as Lucy's Lover
• 1932 · Rockabye as Al Howard
• 1931 · The Hot Heiress as Clay
• 1931 · Kiss Me Again as Paul de St. Cyr
• 1930 · Going Wild as 'Ace' Benton
• 1930 · Viennese Nights as Franz von Renner
• 1930 · The Gorilla as Arthur Marsden
• 1930 · Sweet Kitty Bellairs as Lord Varney
• 1930 · An Intimate Dinner in Celebration of Warner Bros. Silver Jubilee as Self
• 1930 · Bride of the Regiment as Colonel Vultow
• 1930 · Show Girl in Hollywood as Premiere Emcee
• 1929 · A Most Immoral Lady as Tony Williams
• 1929 · Her Private Life as Ned Thayer
• 1929 · The Voice Within as
• 1928 · Melody of Love as Jack Clark
• 1928 · Clothes Make the Woman as Victor Trent
• 1928 · Turn Back the Hours as Philip Drake
• 1928 · Woman Wise as United States Consul
• 1928 · The Gateway of the Moon as Arthur Wyatt
• 1927 · The 13th Juror as Richard Marsden
• 1927 · The Gorilla as Stevens
• 1927 · Sumuru as Paul Sinclair
• 1927 · The Heart of Salome as Monte Carroll
• 1926 · Marriage License? as Paul
• 1926 · Miss Nobody as Bravo
• 1926 · Old Loves and New as Clyde Lord Geradine
• 1926 · The Outsider as Basil Owen
• 1926 · Mannequin as Martin Innesbrook