 | Kirk Douglas als Johnny Hawks |
 | Elsa Martinelli als Onahti |
 | Walter Matthau als Wes Todd |
 | Diana Douglas als Susan Rogers |
 | Walter Abel als Captain Trask |
 | Lon Chaney Jr. als Chivington (as Lon Chaney) |
 | Eduard Franz als Red Cloud |
 | Harry Landers als Grey Wolf / Captain Trask Attaché |
 | Alan Hale Jr. als Will Crabtree (as Alan Hale) |
 | Michael Winkelman als Tommy Rogers |
 | Elisha Cook Jr. als Briggs (as Elisha Cook) |
 | Ray Teal als Morgan |
 | Frank Cady als Trader Joe |
 | Hank Worden als Crazy Bear / Guardhouse Keeper |
 | Lane Chandler als Head Settler (uncredited) |
 | Robert "Buzz" Henry als Lt. Shaeffer (uncredited) |
| André de Toth | Director |
| Robert L. Richards | Story |
| Frank Davis | Screenplay |
| Ben Hecht | Screenplay |
| Wilfrid M. Cline | Director of Photography |
| Franz Waxman | Original Music Composer |
| Wiard B. Ihnen | Art Direction |
| William Schorr | Producer |
| Samuel P. Norton | Associate Producer |
| Richard Cahoon | Editor |
| Kirk Douglas | Executive Producer |
| Lynn F. Reynolds | Makeup Artist |
| Frank Mattison | Production Manager |
| Tom Connors Jr. | Assistant Director |
| Joe Edmondson | Sound Recordist |
| Dave Koehler | Special Effects |
| Jack Voglin | Assistant Director |
| Anne Douglas | Casting Director |
| Richard Farnsworth | Stunts |
| Bob Folkerson | Stunts |
| Ted V. Mikels | Stunts |
| Norm Taylor | Stunts |
