 | Yul Brynner Catlow |
 | Richard Crenna Cowan |
 | Leonard Nimoy Miller |
 | Daliah Lavi Rosita |
 | Jo Ann Pflug Christina |
 | Jeff Corey Merridew |
 | Michael Delano Rio |
 | Dan van Husen Dutch |
 | Julián Mateos Recalde |
 | David Ladd Caxton |
 | Bessie Love Mrs. Frost |
 | Robert Logan Oley |
 | John Clark Keleher |
| Cass Martin Sanchez |
 | José Nieto General |
| Directing | |
| Sam Wanamaker | Director |
Writing | |
| Louis L'Amour | Novel |
Directing | |
| John Glen | Second Unit Director |
Writing | |
| James Griffith | Writer |
| Scot Finch | Writer |
Sound | |
| Roy Budd | Music |
Directing | |
| José María Ochoa | Assistant Director |
Camera | |
| John Harris | Camera Operator |
Art | |
| Ron Patton | Construction Manager |
Camera | |
| Edward Scaife | Director of Photography |
Production | |
| Ronnie Bear | Production Supervisor |
Sound | |
| Len Abbott | Sound Mixer |
Production | |
| Tadeo Villalba | Production Supervisor |
| Diego Gómez Sempere | Production Manager |
Sound | |
| Wally Milner | Sound Mixer |
Art | |
| Herbert Smith | Art Direction |
Production | |
| Javier Gordillo | Unit Manager |
Costume & Make-Up | |
| Ramón de Diego | Makeup Artist |
| Agustín Jiménez | Wardrobe Designer |
Directing | |
| Kay Rawlings | Continuity |
Crew | |
| Kit West | Special Effects |
Production | |
| Euan Lloyd | Producer |
Editing | |
| Alan Killick | Editor |
Art | |
| Germán Quejido Perrucha | Property Master |
Editing | |
| John Glen | Supervising Editor |
Costume & Make-Up | |
| José Antonio Sánchez | Makeup Artist |
