 | Terence Stamp als Taskinar / Skinner |
 | Peter Cushing als William T. Kolderup |
 | Blanca Estrada als Dominique Blanchard |
 | Ana Obregón als Meg Hollaney / Meg Calderón |
 | Paul Naschy als Flynt |
 | Gérard Tichy als Captain Turkott |
 | Ian Sera als Jeff Morgan |
 | David Hatton als Thomas Artelect |
 | Gasphar Ipua als Carefinatu |
 | Frank Braña als Birling |
 | Manuel Pereiro |
 | Daniel Martín |
 | Luis Barboo |
| Juan Piquer Simón | Director |
| Juan Piquer Simón | Writer |
| Juan Piquer Simón | Producer |
| Ron Gantman | Writer |
| Joaquín Grau | Writer |
| Andrés Berenguer | Director of Photography |
| Jules Verne | Novel |
| Alfonso Agullo | Original Music Composer |
| Alejandro Monroy | Original Music Composer |
| Carlos Villa | Original Music Composer |
| Rafael de la Cueva | Editor |
| Earl Watson | Editor |
| Emilio Ruiz del Río | Production Design |
| Gumersindo Andrés | Art Direction |
| Tony Pueo | Costume Design |
| Pedro Camacho | Makeup Artist |
| Francisco Ariza | Production Manager |
