Epic film of the legendary Spanish hero, Rodrigo Diaz ("El Cid" to his followers), who, without compromising his strict sense of honour, still succeeds in taking the initiative and driving the Moors from Spain.
| Directing | Anthony Mann | Director |
| Writing | Philip Yordan | Screenplay |
| Writing | Fredric M. Frank | Screenplay |
| Writing | Ben Barzman | Screenplay |
| Writing | Fredric M. Frank | Story |
| Production | Samuel Bronston | Producer |
| Production | Jaime Prades | Associate Producer |
| Production | Michał Waszyński | Associate Producer |
| Sound | Miklós Rózsa | Original Music Composer |
| Camera | Robert Krasker | Director of Photography |
| Editing | Robert Lawrence | Editor |
| Art | Veniero Colasanti | Production Design |
| Art | John Moore | Production Design |
| Art | Veniero Colasanti | Set Decoration |
| Art | John Moore | Set Decoration |
| Costume & Make-Up | Veniero Colasanti | Costume Design |
| Costume & Make-Up | John Moore | Costume Design |
| Costume & Make-Up | Grazia De Rossi | Hairstylist |
| Costume & Make-Up | Mario Van Riel | Makeup Artist |
| Production | Leon Chooluck | Production Manager |
| Production | Guy Luongo | Production Manager |
| Directing | José López Rodero | Assistant Director |
| Directing | José María Ochoa | Assistant Director |
| Crew | Diego Fabbri | Additional Writing |
| Directing | Yakima Canutt | Second Unit Director |
| Camera | Manuel Berenguer | Second Unit Director of Photography |
| Directing | Luciano Sacripanti | First Assistant Director |
| Directing | Pat Miller | Script Supervisor |
| Sound | Jack Solomon | Sound Recordist |
| Sound | Gordon K. McCallum | Sound Re-Recording Mixer |
| Sound | Verna Fields | Sound Editor |
| Sound | Edna Bullock | Music Editor |
| Art | Maciek Piotrowski | Title Illustration |
| Art | Maciek Piotrowski | Draughtsman |
| Art | Stanley Detlie | Property Master |
| Camera | Carl Gibson | Key Grip |
| Editing | Magdalena Paradell | Assistant Editor |
| Crew | Alex Weldon | Special Effects |
| Crew | Jack Erickson | Special Effects |
| Camera | John Harris | Camera Operator |
| Costume & Make-Up | Gloria Musetta | Wardrobe Supervisor |
| Lighting | Norton Kurland | Electrician |
| Crew | Jack Williams | Stunts |
| Crew | Joe Canutt | Stunts |
| Crew | Tap Canutt | Stunts |
| Crew | Jerry Brown | Stunts |
| Crew | Buff Brady | Stunts |
| Crew | Miguel Pedregosa | Stunts |
| Crew | Omero Capanna | Stunts |
| Crew | Enzo Musumeci Greco | Stunts |
