Directed by
| Juan Antonio Bardem | ||
| Henri Colpi | ||
Writing Credits (in alphabetical order)
| Juan Antonio Bardem | ||
| Jacques Champeaux | ... | (dialogue) |
| Henri Colpi | ... | (writer) |
| Jules Verne | ... | (novel) |
Cast (in credits order)
| Omar Sharif | ... | Captain Nemo (as Omar Shariff) | |
| Gérard Tichy | ... | Cyrus Smith (as Gerard Tichy) | |
| Jess Hahn | ... | Bonaventure Pencroft | |
| Gabriele Tinti | ... | Ayrton | |
 |
Philippe Nicaud | ... | Gideon Spilett (as Philip Nicaud) |
|
|
Rafael Bardem Jr. | ... | Herbert Brown (as Rafael Bardem) |
|
|
Ambroise Bia | ... | Neb (as Ambroise Mbia) |
| Mariano Vidal Molina | ... | Bob Harvey (as Vidal Molina) | |
| Luis Induni | ... | Pirate | |
|
|
Fernando Villena | ... | The Colonel |
| Víctor Israel | ... | Pirate | |
|
|
Miguel del Castillo | ||
| José Jaspe | |||
|
|
Alfonso de la Vega | ||
| Rik Battaglia | ... | Finch | |
| Rest of cast listed alphabetically: | |||
|
|
Agustín Bescos | ... | Military Judge (uncredited) |
| Jean Lefebvre | ... | (uncredited) | |
Produced by
| Jacques Bar | ... | producer |
| Raymond Froment | ... | delegate producer |
Music by
| Gianni Ferrio | ||
Cinematography by
| Guy Delecluse | ||
| Julio Ortas | ... | (as Julio Ortaz) |
| Enzo Serafin | ||
Editing by
| Paul Cayatte | ||
| Antonio Gimeno | ||
Production Design by
| Philippe Ancellin | ||
| José Luis Galicia | ... | (as Galicia) |
| Jaime Pérez Cubero | ... | (as Cubero) |
Costume Design by
| León Revuelta | ... | (as Leon Revuelta) |
| Paris Thermanos | ||
Makeup Department
| Emilio Puyol | ... | makeup artist |
Production Management
| Jean Drouin | ... | unit manager |
| Ignacio Gutiérrez | ... | production manager (as Ignacio Gutierrez) |
| Philippe Lièvre | ... | unit manager (as Philippe Lievre) |
| Pierre Saint-Blancat | ... | production manager |
| Ramón Sanz | ... | production secretary |
Second Unit Director or Assistant Director
| Henri Colpi | ... | second unit director |
| Jean-Claude García | ... | assistant director |
| José Puyol | ... | assistant director |
Art Department
| Francisco Prósper | ... | construction coordinator (uncredited) |
| Jose Velazquez | ... | carpenter (uncredited) |
Sound Department
| Jacques Carrère | ... | sound (as Jacques Carrere) |
| Michel Pécas | ... | sound editor (as Michel Pecas) |
| Guy Villette | ... | sound |
Special Effects by
| Antonio Baquero | ... | special effects |
| Manuel Baquero | ... | special effects |
| Antonio Bueno | ... | special effects technician (uncredited) |
Visual Effects by
| Francisco Prósper | ... | miniatures (uncredited) |
Camera and Electrical Department
| Georges Pierre | ... | still photographer |
| Yves Rodallec | ... | camera operator |
| Domingo Solano | ... | camera operator |
Editorial Department
| Aurore Camp | ... | assistant editor |
| Frédérique Michaud | ... | assistant editor (as Frederique Michaud) |
Music Department
| Gianni Ferrio | ... | conductor |
Script and Continuity Department
| Anne-Marie Garcia | ... | script supervisor (as Anne Marie Garcia) |
Additional Crew
| Jacqueline Delhomme | ... | production secretary |
| José María Cordero | ... | voice dubbing: Ambroise Bia (uncredited) |
| José Ángel de Juanes | ... | voice dubbing: Rik Battaglia (uncredited) |
| Benjamín Domingo | ... | voice dubbing (uncredited) |
| Eduardo Fajardo | ... | voice dubbing: Jess Hahn (uncredited) |
| José Guardiola | ... | voice dubbing: Omar Sharif (uncredited) |
| Fernando Nogueras | ... | voice dubbing (uncredited) |
| Simón Ramírez | ... | voice dubbing: Philippe Nicaud (uncredited) |
| Claudio Rodríguez | ... | voice dubbing: Gérard Tichy (uncredited) |
