 | Jack Buetel als Billy the Kid |
 | Jane Russell als Rio McDonald |
 | Thomas Mitchell als Pat Garrett |
 | Walter Huston als Doc Holliday |
 | Mimi Aguglia als Guadalupe |
 | Joe Sawyer als Charley Woodruff |
 | Gene Rizzi als Stranger |
 | Bobby Callahan als Boy (uncredited) |
 | MartÃn Garralaga als Mike the Waiter (uncredited) |
 | Ben Johnson als Deputy (uncredited) |
 | Dickie Jones als Boy (uncredited) |
| Cecil Kellogg als Deputy (uncredited) |
 | Ethan Laidlaw als Deputy (uncredited) |
| Ted Mapes als Deputy (uncredited) |
 | William Newell als Drunken Cowboy (uncredited) |
 | Emory Parnell als Dolan (uncredited) |
 | Edward Peil Sr. als Swanson (uncredited) |
 | Wallace Reid Jr. als Townsman (uncredited) |
 | Julian Rivero als Pablo (uncredited) |
 | Lee Shumway als Card Dealer (uncredited) |
 | William Steele als Deputy (uncredited) |
 | Harry Strang als Townsman at Sheriff's Office (uncredited) |
| Frank Ward als Boy (uncredited) |
| Pat West als Bartender (uncredited) |
| Howard Hughes | Producer |
| Victor Young | Original Music Composer |
| Gregg Toland | Director of Photography |
| Howard Hughes | Director |
| Jules Furthman | Screenplay |
| Wallace Grissell | Editor |
| Frank Maher | Sound |
| Sam Nelson | Assistant Director |
| Otho Lovering | Supervising Editor |
| Cliff P. Broughton | Production Manager |
| Lucien Ballard | Additional Photography |
| Mel Berns | Makeup Artist |
| Norbert A. Myles | Makeup Artist |
| Arthur S. Black Jr. | Assistant Director |
| Albert R. Broccoli | Assistant Director |
| Arthur Rosson | Second Unit Director |
| Perry Ferguson | Settings |
| Roy Davidson | Special Effects |
| Harry Redmond Jr. | Special Effects |
| Harry Redmond Sr. | Special Effects |
| Vic Jones | Gaffer |
| Victor Young | Music Director |
| Richard Farnsworth | Stunts |
| Ben Johnson | Stunts |
| Ted Mapes | Stunts |
| Howard Hawks | Co-Director |
