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