Directed by
| Juan Piquer Simón | ... | (as J. Piquer Simon) |
Writing Credits (in alphabetical order)
| Ron Gantman | ... | (screenplay) (as R. Gantman) |
| Joaquín Grau | ... | (screenplay) (as J. Grau) |
| Juan Piquer Simón | ... | (screenplay) (as J. Piquer) |
| Jules Verne | ... | (novel) |
Cast (in credits order)
| Terence Stamp | ... | Taskinar / Skinner | |
| Peter Cushing | ... | William T. Kolderup | |
| Ian Serra | ... | Jeff Morgan (as Ian Sera) | |
| David Hatton | ... | Professor Thomas Artelect | |
 |
Gasphar Ipua | ... | Carefinatu |
| Blanca Estrada | ... | Dominique Blanchard | |
| Ana Obregón | ... | Meg Hollaney / Meg Calderón | |
| Frank Braña | ... | Birling (as Frank Brana) | |
| Paul Naschy | ... | Flynt | |
| Gérard Tichy | ... | Capt. Turkott | |
| Manuel Pereiro | |||
| Daniel Martín | |||
| Luis Barboo | |||
| Jorge Bosso | ... | (as George Bosso) | |
|
|
Ioshio Murakami | ... | The Chinaman |
| Rest of cast listed alphabetically: | |||
| Taida Urruzola | |||
Produced by
| Juan Piquer Simón | ... | producer (as J. Piquer Simon) |
Music by
| Alfonso Agullo | ||
| Alejandro Monroy | ||
| Carlos Villa | ||
Cinematography by
| Andrés Berenguer | ... | director of photography (as Andres Berenguer) |
Editing by
| Rafael de la Cueva | ||
| Earl Watson | ||
Production Design by
| Emilio Ruiz del Río | ... | (as Emilio G. Ruiz) (as Emilio Ruiz) |
Art Direction by
| Gumersindo Andrés | ... | (as Gumer Andres) |
Set Decoration by
| Gonzalo Gonzalo | ... | (stylist) |
Costume Design by
| Tony Pueo | ||
Makeup Department
| Pedro Camacho | ... | makeup artist |
Production Management
| Francisco Ariza | ... | production manager |
Second Unit Director or Assistant Director
| Kuki López Rodero | ... | first assistant director (as Juan C. Lopez Rodero) |
| Hermenegildo Romero | ... | second assistant director |
Art Department
| Moises Eyama | ... | art assistant |
| Manuel Ordaz López | ... | art assistant (as Manuel Lopez) |
| Antonio Paramo Campos | ... | chief plasterer (uncredited) |
| José García Donado | ... | props (uncredited) |
| Jacinto Soria | ... | plasterer (uncredited) |
Sound Department
| Rogelio Armada | ... | sound assistant |
| Luis Castro | ... | sound effects |
| Eduardo Fernández | ... | sound engineer (as Eduardo Fernandez) |
| George Stephenson | ... | sound engineer |
Special Effects by
| Basilio Cortijo | ... | special effects |
| Fermin Velasco | ... | special effects assistant |
Visual Effects by
| Emilio Ruiz del Río | ... | visual effects (as Emilio G. Ruiz) (as Emilio Ruiz) |
Camera and Electrical Department
| Alejandro Diges | ... | still photographer (as Alejandro Dijes) |
| Ricardo Navarrete | ... | camera operator (as Ricardo G. Navarrete) |
Casting Department
| Carmen Zorrilla | ... | extras casting |
Costume and Wardrobe Department
| Pablo Espinosa | ... | wardrobe |
| Adela Velasco | ... | wardrobe |
Editorial Department
| Jose M. De La Cueva | ... | editing assistant |
| Sergio González | ... | editing assistant (as Sergio Gonzalez) |
Music Department
| Alfonso Agullo | ... | music producer (as A. Agullo) |
| A. Palmieri | ... | music producer |
Script and Continuity Department
| Isabel Ruiz Capillas | ... | continuity (as Maribel Ruiz Capillas) |
Transportation Department
| Vicente Cervantes | ... | transportation assistant |
Additional Crew
| Hugo Astar | ... | publicist (as Carlos H. Aztarain) |
| Miguel Gomez | ... | first production assistant |
| Manuel Pinilla | ... | production assistant |
| Vicente Vega | ... | production assistant |
| Félix Acaso | ... | voice dubbing: Peter Cushing (uncredited) |
| Héctor Cantolla | ... | voice dubbing: Frank Braña (uncredited) |
| Rafael de Penagos | ... | voice dubbing: David Hetton (uncredited) |
| Javier Dotú | ... | voice dubbing: Ian Sera (uncredited) |
| Antonio García Moral | ... | voice dubbing: Gasphar Ipua (uncredited) |
| Luis Gaspar | ... | voice dubbing (uncredited) |
| José Luis Lespe | ... | voice dubbing (uncredited) |
| José Martínez Blanco | ... | voice dubbing (uncredited) |
| Luis Marín | ... | voice dubbing (uncredited) |
| Luis Porcar | ... | voice dubbing: Terence Stamp (uncredited) |
| Claudio Rodríguez | ... | voice dubbing: Gérard Tichy (uncredited) |
| María Antonia Rodríguez | ... | voice dubbing: Ana Obregón (uncredited) |
