| Person | Type | Job | Role(s) |
|---|---|---|---|
 Augusto Boué | Crew | Production | Producer |
David Karp | Crew | Writing | Screenplay |
 Edmond Richard | Crew | Camera | Director of Photography |
Enrique Llovet | Crew | Writing | Screenplay |
Jean Ledrut | Crew | Sound | Original Music Composer |
Margarita Ochoa | Crew | Editing | Editor |
 Vincent Sherman | Crew | Directing | Director |
Adolfo Thous | Cast | Actor | (uncredited) |
 Adriano Domínguez | Cast | Actor | (uncredited) |
 Andrés Mejuto | Cast | Actor | Cervantes' Father |
 Antoine Fontaine | Cast | Actor | |
 Antonio Almorós | Cast | Actor | (uncredited) |
 Antonio Casas | Cast | Actor | Favio |
Eric Chapman | Cast | Actor | (uncredited) |
 Fernando Bilbao | Cast | Actor | (uncredited) |
 Fernando Hilbeck | Cast | Actor | Carlos |
 Fernando Rey | Cast | Actor | Filipe II |
Fernando Villena | Cast | Actor | (uncredited) |
 Francisco Rabal | Cast | Actor | Rodrigo Cervantes |
 George Rigaud | Cast | Actor | Count di Luca |
 Gina Lollobrigida | Cast | Actress | Giulia |
 Horst Buchholz | Cast | Actor | Miguel de Cervantes |
Héctor Quiroga | Cast | (uncredited) | |
 José Canalejas | Cast | Actor | (uncredited) |
 José Ferrer | Cast | Actor | Hassan Bey |
 José Jaspe | Cast | Actor | Turkish Official |
 José Nieto | Cast | Actor | Minister of Felipe II |
Juan Antonio Peral | Cast | (uncredited) | |
 Juan Cazalilla | Cast | Actor | Priest (uncredited) |
 Louis Jourdan | Cast | Actor | Cardinal Acquaviva |
Luis Gaspar | Cast | (uncredited) | |
 Mariano Vidal Molina | Cast | Actor | Diego de Urbina (uncredited) |
Mario Morales | Cast | ||
Maurice de Canonge | Cast | Actor | |
 Ricardo Palacios | Cast | Actor | Sancho |
 Soledad Miranda | Cast | Actress | Nessa |
Tiziano Cortini | Cast | ||
 Ángel Aranda | Cast | Actor | (uncredited) |
 Ángel del Pozo | Cast | Actor | Don Juan de Austria |
 José Marco | Cast | Actor | |
Claudine Dalmas | Cast | ||
Amparo Díaz | Cast | (uncredited) | |
Ricardo Costa | Cast | Actor | (uncredited) |
André Spengler | Cast | ||
Amalia Velázquez | Cast | ||
José Ignacio Pidal | Cast | Actor | (uncredited) |
José González Talavera | Cast | (uncredited) | |
Juan Antonio López | Cast | (uncredited) | |
Pepita Otero | Cast | (uncredited) | |
Moisés Fernández | Cast | (uncredited) | |
Enzo Curcio | Cast | (uncredited) | |
Antonio Olaguível | Cast | (uncredited) | |
Fernando Rovert | Cast | (uncredited) | |
Jaime Pelta | Cast | (uncredited) | |
Rita Sanso | Cast | (uncredited) | |
Gaudenzio Di Pietro | Cast | (uncredited) | |
Gian Castelli | Cast | (uncredited) | |
| Person | Type | Job | Role(s) |
