Directed by
| Jesús Franco | ... | (as Jess Frank) |
Writing Credits
| Jesús Franco | ... | (screenplay) (as Jess Frank) |
| Jesús Franco | ... | (story: "La Main d'un Homme Mort") (as David Khune) |
| Rene Sebille | ... | (adaptation) (as René Sebille) |
| Michel Luckin | ... | (French version adapted by) |
| Pío Ballesteros | ... | (writer) (uncredited) |
| Juan Cobos | ... | (writer) (uncredited) |
| Gonzalo Sebastián de Erice | ... | (writer) (uncredited) |
Cast (in credits order)
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Ana Castor | ... | Lida (as Anna Astor) |
| Howard Vernon | ... | Baron Max von Klaus | |
| Paula Martel | ... | Karine | |
| Georges Rollin | ... | Inspector Borowski | |
| Hugo Blanco | ... | Ludwig von Klaus | |
| Gogó Rojo | ... | Margaret (as Gogo Robins) | |
| Rest of cast listed alphabetically: | |||
| Manuel Alexandre | ... | Theo (uncredited) | |
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Emilio Alonso | ... | Police Sergeant (uncredited) |
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José Carlos Arévalo | ... | Helmund (uncredited) |
| José Luis Coll | ... | Hotel Guest (uncredited) | |
| Fernando Delgado | ... | Karl Steiner (uncredited) | |
| María Francés | ... | Elisa von Klaus (uncredited) | |
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Serafín García Vázquez | ... | Hansel (uncredited) |
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Marius Lesoeur | ... | Man Blocking Traffic on Bridge (uncredited) |
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Miguel Madrid | ... | Fritz, Hanburg Hotel Concierge (uncredited) |
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Ángel Menéndez | ... | Doctor Kalman (uncredited) |
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Turia Nelson | ... | Dorian Vincet (uncredited) |
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Joaquín Pamplona | ... | Steiner's Editor (uncredited) |
Produced by
| Marius Lesoeur | ... | producer |
| José López Brea | ... | producer |
Music by
| Daniel White | ... | (as Daniel J. White) |
Cinematography by
| Godofredo Pacheco | ... | (uncredited) |
Editing by
| Ángel Serrano | ||
Production Design by
| Andrés Vallvé | ||
Art Direction by
| Antonio Cortés | ||
Makeup Department
| Emilio Puyol | ... | makeup artist |
Additional Crew
| Vicente Bañó | ... | voice dubbing: Howard Vernon (uncredited) |
| Pilar Calvo | ... | voice dubbing: María Francés (uncredited) |
| Matilde Conesa | ... | voice dubbing: Paula Martel (uncredited) |
| Rafael de Penagos | ... | voice dubbing: Georges Rollin and José Luis Coll (uncredited) |
| Pilar Gentil | ... | voice dubbing: Nuria Telson (uncredited) |
| Mari Ángeles Herranz | ... | voice dubbing: Ana Castor (uncredited) |
| José Luis Lespe | ... | voice dubbing (uncredited) |
| José Martínez Blanco | ... | voice dubbing: Joaquín Pamplona (uncredited) |
| Víctor Orallo | ... | voice dubbing: Miguel Madrid (uncredited) |
| Manuel Peiró | ... | voice dubbing: Hugo Blanco (uncredited) |
| Carlos Revilla | ... | voice dubbing: José Carlos Arévalo (uncredited) |
| Claudio Rodríguez | ... | voice dubbing: Ángel Menéndez (uncredited) |
| Ana María Saizar | ... | voice dubbing: Gogó Rojo (uncredited) |
