| Person | Type | Job | Role(s) |
|---|---|---|---|
 Alfred Junge | Crew | Art | Production Design, Set Dresser |
 Anthony Veiller | Crew | Writing | Screenplay |
Claude Hitchcock | Crew | Sound | Boom Operator |
Denis O'Dell | Crew | Directing | Assistant Director |
Frank White | Crew | Art | Art Direction |
Freda Pearson | Crew | Art | Set Decoration |
Ivy Baker | Crew | Costume & Make-Up | Wardrobe Supervisor |
 John Addison | Crew | Sound | Original Music Composer |
John Harris | Crew | Camera | Camera Operator |
John O'Gorman | Crew | Costume & Make-Up | Makeup Artist |
Leslie Hodgson | Crew | Sound | Sound Recordist |
Muir Mathieson | Crew | Sound | Conductor |
 Peter Diamond | Crew | Crew | Stunts |
Peter Mullins | Crew | Directing | Assistant Director |
Raymond Poulton | Crew | Editing | Editor |
 Robert Krasker | Crew | Camera | Director of Photography |
Ronald Kinnoch | Crew | Production | Associate Producer |
Sy Bartlett | Crew | Writing | Screenplay, Producer |
 Terence Young | Crew | Directing | Director |
Willy Kemplen | Crew | Editing | Assistant Editor |
Sash Fisher | Crew | Sound | Sound Recordist |
Betty Lee | Crew | Costume & Make-Up | Hairstylist |
Betty Harley | Crew | Directing | Continuity |
Kate O'Brien | Crew | Writing | Theatre Play |
London Symphony Orchestra | Crew | Sound | Musician |
Ted Cotton | Crew | Production | Production Manager |
Mariano Andreu | Crew | Costume & Make-Up | Costume Design |
 Adriano Domínguez | Cast | Actor | |
 Anthony Dawson | Cast | Actor | Don Inigo |
 Christopher Lee | Cast | Actor | Capitán |
 Dennis Price | Cast | Actor | Mateo Vázquez |
 Fernando Sancho | Cast | Actor | Diego |
 Françoise Rosay | Cast | Actress | Bernardine |
 Gilbert Roland | Cast | Actor | Antonio Perez |
 Jane Randolph | Cast | Actress | (no acreditado) |
 Jim Brady | Cast | Actor | Carcelero (no acreditado) |
 José Nieto | Cast | Actor | Don Juan de Escobedo |
 José Villasante | Cast | Actor | |
 Olivia de Havilland | Cast | Actress | Ana de Mendoza |
 Paul Scofield | Cast | Actor | King Philip II of Spain |
 Peter Illing | Cast | Actor | Diego |
 Robert Harris | Cast | Actor | Cardenal |
 Robert Rietti | Cast | Actor | Escovedo (voice) (uncredited) |
Angel Peralta | Cast | Rejoneador (uncredited) | |
Andy Shine | Cast | Fernando de pequeño (no acreditado) | |
| Person | Type | Job | Role(s) |
