| Year | Movie | Role | Other cast members | Filmed in |
|---|---|---|---|---|
| 1935 | ''The Farmer Takes a Wife | Dan Harrow | Janet Gaynor | black and white |
| 1935 | Way Down East | David Bartlett | ||
| 1935 | I Dream Too Much | Jonathan Street | Lily Pons Eric Blore | |
| 1936 | Spendthrift | Townsend Middleton | ||
| 1936 | The Trail of the Lonesome Pine | Dave Tolliver | ||
| 1936 | The Moon's Our Home | Townsend Middleton | ||
| 1937 | You Only Live Once | Kerry Gilfallen | ||
| 1937 | Wings of the Morning | Eddie Taylor | ||
| 1937 | Slim | Slim Kincaid | ||
| 1937 | That Certain Woman | Jack V. Merrick, Jr. | Bette Davis Anita Louise | |
| 1938 | I Met My Love Again | Ives Towner | ||
| 1938 | Jezebel | Preston Dillard | Bette Davis George Brent | |
| 1938 | Blockade | Marco | ||
| 1938 | Spawn of the North | Jim Kimmerlee | ||
| 1938 | The Mad Miss Manton | Peter Ames | ||
| 1939 | Jesse James | Frank James | ||
| 1939 | Let Us Live! | Brick Tennant | ||
| 1939 | The Story of Alexander Graham Bell | Thomas Watson | ||
| 1939 | Young Mr. Lincoln | Abraham Lincoln | ||
| 1939 | Drums Along the Mohawk | Gilbert Martin | ||
| 1940 | The Grapes of Wrath | Tom Joad | ||
| 1940 | Lillian Russell | Alexander Moore | ||
| 1940 | The Return of Frank James | Frank James | Gene Tierney | Technicolor |
| 1940 | Chad Hanna | Chad Hanna | ||
| 1941 | The Lady Eve | Charles Pike | Barbara Stanwyck | B&W |
| 1941 | Wild Geese Calling | John Murdock | ||
| 1941 | You Belong to Me | Peter Kirk | ||
| 1942 | Rings on Her Fingers | John Wheeler | Gene Tierney | black and white |
| 1942 | The Male Animal | Prof. Tommy Turner | Olivia DeHavilland | |
| 1942 | The Magnificent Dope | Thadeus Winship Page | ||
| 1942 | Tales of Manhattan | George | ||
| 1942 | The Big Street | Agustus Pinkerton II | ||
| 1943 | Immortal Sergeant | Cpl. Colin Spence | ||
| 1943 | The Ox-Bow Incident | Gil Carter | Dana Andrews | black and white |
| 1946 | My Darling Clementine | Wyatt Earp | ||
| 1947 | The Long Night | Joe Adams | ||
| 1947 | The Fugitive | A Fugitive | ||
| 1947 | Daisy Kenyon | Peter Lapham | ||
| 1948 | On Our Merry Way | Lank | James Stewart | |
| 1948 | Fort Apache | Lt. Col. Owen Thursday | ||
| 1949 | Jigsaw | Nightclub Waiter | ||
| 1951 | Benjy | Narrator | ||
| 1955 | Mister Roberts | Lt. Douglas A. Roberts | ||
| 1956 | War and Peace | Pierre Bezukhov | ||
| 1956 | The Wrong Man | Manny Balestrero | ||
| 1957 | 12 Angry Men | Juror #8 / Mr. Davis | ||
| 1957 | The Tin Star | Morg Hickman | ||
| 1958 | Stage Struck | Lewis Easton | ||
| 1959 | Warlock | Clay Blaisedell | ||
| 1959 | The Man Who Understood Women | Willie Bauche | ||
| 1959 | The Deputy | Marshal Simon Fry | ||
| 1962 | Advise and Consent | Robert A. Leffingwell | Charles Laughton Don Murray Gene Tierney Walter Pidgeon | black and white |
| 1962 | The Longest Day | Brig. Gen. Theodore Roosevelt Jr. | ||
| 1962 | How the West Was Won | Jethro Stuart | ||
| 1963 | Spencer's Mountain | Clay Spencer | ||
| 1964 | The Best Man | William Russell | ||
| 1964 | Fail-Safe | The President | ||
| 1964 | Sex and the Single Girl | Frank Broderick | ||
| 1965 | The Rounders | Marion 'Howdy' Lewis | ||
| 1965 | In Harm's Way | Adm. Chester W. Nimitz | ||
| 1965 | The Dirty Game | Dimitri Koulov | ||
| 1965 | Battle of the Bulge | Lt. Col. Daniel Kiley | ||
| 1966 | A Big Hand for the Little Lady | Meredith / Ben Bailey | ||
| 1967 | Welcome to Hard Times | Mayor Will Blue | ||
| 1967 | Stranger on the Run | Ben Chamberlain | ||
| 1967 | Firecreek | Bob Larkin | ||
| 1968 | Madigan | Commissioner Anthony X. Russell | ||
| 1968 | Yours, Mine and Ours | Frank Beardsley | ||
| 1968 | The Boston Strangler | John S. Bottomly | ||
| 1968 | Once Upon a Time in the West | Frank | ||
| 1970 | Too Late the Hero | Capt. John G. Nolan | ||
| 1970 | The Cheyenne Social Club | Harley Sullivan | ||
| 1970 | There Was a Crooked Man... | Woodward Lopeman | ||
| 1971 | Sometimes a Great Notion | Henry Stamper | ||
| 1971 | The Smith Family | Det. Sgt. Chad Smith | ||
| 1973 | The Red Pony | Carl Tiflin | ||
| 1973 | Night Flight from Moscow | Allan Davies | ||
| 1973 | The Alpha Caper | Mark Forbes | ||
| 1973 | Ash Wednesday | Mark Sawyer | ||
| 1973 | Il Mio nome è Nessuno | Jack Beauregard | ||
| 1974 | Mussolini: Ultimo atto | Cardinal Schuster | ||
| 1974 | Clarence Darrow | Clarence Darrow | ||
| 1976 | Collision Course: Truman vs. MacArthur | Gen. Douglas MacArthur | ||
| 1976 | Almos' a Man | unknown | ||
| 1976 | Midway | Adm. Chester W. Nimitz | ||
| 1976 | Captains and the Kings | Sen. Enfield Bassett | ||
| 1977 | Tentacles | Mr. Whitehead | ||
| 1977 | Rollercoaster | Simon Davenport | ||
| 1977 | The Last of the Cowboys | Elegant John | ||
| 1978 | Il Grande attacco | General Foster | ||
| 1978 | Home to Stay | Grandpa George | ||
| 1978 | Fedora | President of the Academy | ||
| 1978 | The Swarm | Dr. Walter Krim | ||
| 1978 | A Special Sesame Street Christmas | Guest | ||
| 1979 | Roots: The Next Generations | Colonel Frederick Warner | ||
| 1979 | City on Fire | Chief Albert Risley | ||
| 1979 | Wanda Nevada | Old Prospector | ||
| 1979 | Meteor | The President | ||
| 1980 | The Jilting of Granny Weatherall | Narrator | ||
| 1980 | The Oldest Living Graduate | Col. J.C. Kincaid | ||
| 1980 | Gideon's Trumpet | Clarence Earl Gideon | ||
| 1981 | On Golden Pond | Norman Thayer Jr. | Katharine Hepburn | |
| 1981 | Summer Solstice | Joshua Turner |