Directed by
| Eugenio Martín | ... | (as Gene Martin) |
Writing Credits (WGA)
| Arnaud d'Usseau | ... | (screenplay) and |
| Julian Zimet | ... | (screenplay) (originally as Julian Halevy) |
Cast (in credits order) verified as complete
| Christopher Lee | ... | Prof. Sir Alexander Saxton (as Cristopher Lee) | |
| Peter Cushing | ... | Doctor Wells | |
| Alberto de Mendoza | ... | Father Pujardov | |
| Telly Savalas | ... | Capt. Kazan | |
| Silvia Tortosa | ... | Countess Irina Petrovski | |
| Julio Peña | ... | Inspector Mirov | |
| Jorge Rigaud | ... | Count Maryan Petrovski | |
| Ángel del Pozo | ... | Yevtuchenko (as Angel del Pozo) | |
| Víctor Israel | ... | Maletero - Baggage Man (as Victor Israel) | |
| Helga Liné | ... | Natasha (as Helga Line) | |
 |
Alice Reinheart | ... | Miss Jones |
| José Jaspe | ... | Konev - Conductor (as Jose Jaspe) | |
|
|
Vicente Roca | ... | Station Master |
|
|
Juan Olaguivel | ... | Creature (as Juan Olaguibel) |
| José Canalejas | ... | Russian Guard (as Jose Canalejas) | |
| Barta Barri | ... | First Telegraphist | |
|
|
Fernando Villena | ... | Third Telegraphist |
| José Marco | ... | Vorkin (as Jose Marco) | |
|
|
Faith Clift | ... | Miss Bennett - American Passenger |
|
|
Peter Beckman | ... | Second Telegraphist |
|
|
Hiroshi Kitatawa | ... | Grashinski - Locksmith |
|
|
Allen Russell | ... | Capt. O'Hagan |
Produced by
| Benjamin Fisz | ... | executive producer (uncredited) |
| Bernard Gordon | ... | producer |
| Kenneth Rive | ... | executive producer (uncredited) |
| Gregorio Sacristán | ... | associate producer |
| Philip Yordan | ... | co-producer (uncredited) |
Music by
| John Cacavas | ||
Cinematography by
| Alejandro Ulloa | ... | director of photography |
Editing by
| Robert C. Dearberg | ... | (as Robert Dearberg) |
Production Design by
| Ramiro Gómez | ... | (as Gomez Ramiro) |
Art Direction by
| Ramiro Gómez | ... | (as Ramiro Gomez) |
Set Decoration by
| Ramiro Gómez | ||
Makeup Department
| Rafael Berraquero | ... | assistant makeup artist |
| Fernando Florido | ... | makeup artist |
| Romana González | ... | assistant hair stylist |
| Julián Ruiz | ... | makeup supervisor |
| María Nieves Ruiz | ... | hair stylist |
Production Management
| Juan Gracia | ... | unit production manager |
| José María Ramos | ... | production manager |
Second Unit Director or Assistant Director
| Gil Carretero | ... | assistant director |
| Vicente Escrivá hijo | ... | second assistant director (as Vicente Escrivá) |
Art Department
| John Chisholm | ... | props |
| Juan Gracia | ... | prop master |
| Jesús Mateos | ... | decorator |
| Rafael Pérez Murcia | ... | set assistant |
| Julián Martín | ... | painter (uncredited) |
Sound Department
| Manuel Ferreiro | ... | boom operator (as Manuel Ferreiro Sierra) |
| Antonio Illán | ... | sound supervisor |
| Luis López Díaz | ... | sound recordist |
| Enrique Molinero | ... | sound mixer |
Special Effects by
| Pablo Pérez | ... | special effects |
| Fernando Pérez | ... | special effects (uncredited) |
Visual Effects by
| Brian Stevens | ... | optical effects |
Camera and Electrical Department
| Teo Escamilla | ... | camera operator (as Teodoro Escamilla) |
| Simón López | ... | still photographer (as Simon Lopez) |
| Luis Peña | ... | focus puller (as Luis Pena) |
| Antonio Vega | ... | assistant camera |
Costume and Wardrobe Department
| Andrés Fernández | ... | wardrobe master (as Andres Fernandez) |
| Carmen Manzano | ... | wardrobe mistress |
| Charles Simminger | ... | wardrobe supervisor (as Charlie Simminger) |
Editorial Department
| Carmen Alonso | ... | assistant editor |
| Fernando Megino | ... | assistant editor |
| Maria Carmen Teberner | ... | assistant editor (as Mari Carmen Taberner) |
Music Department
| John Cacavas | ... | conductor |
Script and Continuity Department
| Eugenio Martín | ... | original story (as Gene Martin) |
| Isabel Ruiz Capillas | ... | script supervisor (as Maribel Ruiz-Capilla) |
Additional Crew
| Katrina Bayonas | ... | unit publicist |
| Benjamin Fisz | ... | presenter (as Ben Fisz) |
| Rafael Pérez Murcia | ... | set assistant (as Rafael Perez Murcia) |
| Kenneth Rive | ... | presenter |
| José Luis Rubio | ... | production assistant |
| Félix Acaso | ... | voice dubbing: Peter Cushing (uncredited) |
| Víctor Agramunt | ... | voice dubbing: Ángel del Pozo (uncredited) |
| Francisco Arenzana | ... | voice dubbing: Fernando Villena (uncredited) / voice dubbing: José Jaspe/various (uncredited) |
| Ángel María Baltanás | ... | voice dubbing: Vicente Roca (uncredited) |
| Vicente Bañó | ... | voice dubbing: Telly Savalas (uncredited) |
| Luis Carrillo | ... | voice dubbing: Alberto De Mendoza (uncredited) |
| Maripe Castro | ... | voice dubbing (uncredited) |
| María del Puy | ... | voice dubbing: Silvia Tortosa (uncredited) |
| Roger Delgado | ... | voice dubbing: Julio Peña: English version (uncredited) |
| Ana Díaz Plana | ... | voice dubbing: Alice Reinhart (uncredited) |
| Joaquín Escola | ... | voice dubbing: Jorge Rigaud (uncredited) |
| Antolín García | ... | voice dubbing: Julio Peña (uncredited) |
| Manolo García | ... | voice dubbing: Russell Allen (uncredited) |
| Pilar Gentil | ... | voice dubbing: Faith Clift (uncredited) |
| Olive Gregg | ... | voice dubbing: Alice Reinheart: English version (uncredited) / voice dubbing: Helga Liné: English version (uncredited) / voice dubbing: Silvia Tortosa: English version (uncredited) |
| José Guardiola | ... | voice dubbing: Christopher Lee (uncredited) |
| Federico Guillén | ... | voice dubbing: various (uncredited) |
| Celia Honrubia | ... | voice dubbing: Helga Liné (uncredited) |
| Víctor Ramírez | ... | voice dubbing: Victor Israel (uncredited) |
| Robert Rietty | ... | voice dubbing: Alberto de Mendoza: English version (uncredited) |
| Pedro Sempson | ... | voice dubbing (uncredited) |
