 | Lee Marvin als Ben Rumson |
 | Clint Eastwood als "Pardner" |
 | Jean Seberg als Elizabeth Woodling |
 | Ray Walston als "Mad Jack" Duncan |
 | Harve Presnell als "Rotten Luck Willie" |
 | Tom Ligon als Horton Fenty |
 | Alan Dexter als Parson |
 | Terry Jenkins als Joe Mooney |
 | Paula Trueman als Mrs. Fenty |
 | H.B. Haggerty als Steve Bull |
 | Benny Baker als Haywood Holbrook |
 | William O'Connell als Horace Tabor |
| Geoffrey Norman als Foster |
 | Robert Easton als Ezra Atwell |
 | Alan Baxter als Mr. Fenty |
| Karl Bruck als Schermerhorn |
 | John Mitchum als Jacob Woodling |
 | Sue Casey als Sarah Woodling |
 | Eddie Little Sky als Indian |
 | Harvey Parry als Higgins |
 | H.W. Gim als Wong |
| William Mims als Frock-Coated Man |
 | Roy Jenson als Hennessey |
| Patrick Hawley als Clendennon |
 | Tony Colti als Miner (uncredited) |
 | Roger Herren als Miner (uncredited) |
| Robert C. Jones | Editor |
| Alan Jay Lerner | Screenplay |
| Alan Jay Lerner | Musical |
| Alan Jay Lerner | Producer |
| Paddy Chayefsky | Adaptation |
| William A. Fraker | Director of Photography |
| John Truscott | Production Design |
| Joshua Logan | Director |
| Robert Eaton | Props |
| Anne Laune | Costume Coordinator |
| Larry Hampton | Special Effects |
| Jack Baker | Choreographer |
| Joseph J. Lilley | Music Consultant |
| Joe Smith | Gaffer |
| Jack Roe | First Assistant Director |
| Jonas Halperin | Producer's Assistant |
| Loyal Griggs | Second Unit Cinematographer |
| Nelson Riddle | Conductor |
| John Truscott | Costume Design |
| Joseph J. Lilley | Music Arranger |
| Nelson Riddle | Original Music Composer |
| Cheryl Crawford | Other |
| André Previn | Additional Music |
| James L. Berkey | Set Decoration |
| Bobby Byrne | Assistant Camera |
| William Randall | Sound Mixer |
| Fred Lemoine | Production Manager |
| David M. Walsh | Camera Operator |
| Joseph Curtis | Dialogue Coach |
| Al Murphy | Second Unit First Assistant Director |
| Maurice Ayers | Special Effects |
| Frank McCoy | Makeup Artist |
| Fred Lemoine | Second Unit Director |
| Alan Jay Lerner | Lyricist |
| Carl Braunger | Art Direction |
| Vivienne Walker | Hairdresser |
| Marshall J. Wolins | Script Supervisor |
| Nelson Tyler | Aerial Camera |
| Tom Shaw | Associate Producer |
| David Stone Martin | Title Designer |
| Tom May | Key Grip |
| Gene Levy | Production Coordinator |
| Roger Wagner | Conductor |
| Bill Jobe | Costume Supervisor |
| Fred Hynes | Recording Supervision |
| Carl Beringer | Production Manager |
| Tom Shaw | Second Unit Director |
| Frederick Loewe | Music |
| Alfred Schultz | Transportation Coordinator |
| Ruth Santarone | Catering |
| Dominic Santarone | Catering |
| Willard Jones | Orchestrator |
| Frederick Loewe | Songs |
| Dar Robinson | Stunts |
| Bob Herron | Stunts |
