Directed by
| Antonio Isasi-Isasmendi | ... | (as Antonio Isasi) |
Writing Credits
| Antonio Isasi-Isasmendi | ... | (screenplay) (as A. Isasi) & |
| Lluís Josep Comerón | ... | (screenplay) (as L. Comeron) & |
| Jorge Illa | ... | (screenplay) (as J. Illa) & |
| Jo Eisinger | ... | (screenplay) (as J. Eisinger) |
| André Lay | ... | (novel) |
| Jo Eisinger | ... | (dialogue) (as Joe Eisinger) |
Cast (in credits order)
| Gary Lockwood | ... | Tony Ferris | |
| Elke Sommer | ... | Ann Bennett | |
| Lee J. Cobb | ... | Steve Skorsky | |
| Jack Palance | ... | Douglas | |
| Georges Géret | ... | Leroy (as George Geret) | |
| Gustavo Re | ... | Salvatore | |
| Daniel Martín | ... | Merino | |
| Maurizio Arena | ... | Clark | |
| Armand Mestral | |||
 |
Fabrizio Capucci | ... | Cooper |
| Enrique Ávila | ... | Baxter (as Enrique Avila) | |
| Gérard Tichy | ... | Sheriff Klinger (as Gerard Tichy) | |
| Jean Servais | ... | Gino | |
| Roger Hanin | ... | The Boss | |
| Rest of cast listed alphabetically: | |||
|
|
Ingrid Spaey | ||
| Carlos Ballesteros | ... | (uncredited) | |
| Luis Barboo | ... | Guard (uncredited) | |
|
|
Rossella Bergamonti | ... | Policewoman (uncredited) |
| Antonio Casas | ... | (uncredited) | |
| Beni Deus | ... | (uncredited) | |
| Fernando Hilbeck | ... | (uncredited) | |
| José Marco | ... | (uncredited) | |
|
|
Julio Pérez Tabernero | ... | (uncredited) |
| Jorge Rigaud | ... | Chief Inspector Morton (uncredited) | |
|
|
Lorenzo Robledo | ... | Man at Control Center (uncredited) |
| Rubén Rojo | ... | Brian (uncredited) | |
Produced by
| Antonio Isasi-Isasmendi | ... | producer (as Antonio Isasi) |
| Nat Wachsberger | ... | executive producer |
Music by
| Georges Garvarentz | ||
Cinematography by
| Juan Gelpí | ... | director of photography |
Editing by
| Elena Jaumandreu | ... | (as E. Jaumandreu) |
| Emilio Rodríguez | ... | chief editor (as E. Rodriguez) |
Art Direction by
| Antonio Cortés | ... | (as T. Cortes) |
| Juan Alberto Soler | ... | (as J. Alberto) |
Makeup Department
| Mercedes Guillot | ... | assistant makeup artist (uncredited) |
| Emilio Puyol | ... | makeup artist (uncredited) |
Production Management
| Miguel Grau | ... | production inspector |
| Antonio Irles | ... | production supervisor |
Second Unit Director or Assistant Director
| Luis García | ... | assistant director (as L. Garcia) |
| Marcelino Riba-Abizanda | ... | assistant director (as M. Riba) |
| U. Volz | ... | assistant director |
Art Department
| Tomás Fernández | ... | set constructor (as T. Fernandez) |
| Frank McCarthy | ... | poster artist |
| Ramón Molina | ... | assistant set decorator (uncredited) |
Special Effects by
| Antonio Baquero | ... | special effects (uncredited) |
Camera and Electrical Department
| Rafael García Martos | ... | gaffer |
| Francisco Gómez Conde | ... | camera operator (as F. Gomez Conde) |
| Enrique Dalet | ... | assistant camera (uncredited) |
| Simón López | ... | still photographer (uncredited) |
| Tomás Moya | ... | camera operator (uncredited) |
| Santiago Rodríguez | ... | assistant camera (uncredited) |
Costume and Wardrobe Department
| Ilga Penezis | ... | wardrobe (as I. Penezis) |
Editorial Department
| Carlos de la Cueva | ... | assistant editor (uncredited) |
| Celestí Marbà | ... | assistant editor (uncredited) |
| Bautista Treig | ... | assistant editor (uncredited) |
Music Department
| Mario Bua | ... | producer: additional music (uncredited) |
| Maurice Coignard | ... | musical director (uncredited) |
| Edda Dell'Orso | ... | performer: theme song (uncredited) |
Script and Continuity Department
| Paquita Vilanova | ... | script girl (as P. Vilanova) |
Additional Crew
| Josep Maria Angelat | ... | voice dubbing: Georges Géret (uncredited) |
| Juan Antolín | ... | voice dubbing: Gustavo Re (uncredited) |
| Ricardo B. Arévalo | ... | production assistant (uncredited) |
| Ernesto Aura | ... | voice dubbing: Rubén Rojo (uncredited) |
| Ricardo Bonilla | ... | production assistant (uncredited) |
| Rafael Luis Calvo | ... | voice dubbing: Lee J. Cobb (uncredited) |
| Manuel Cano | ... | voice dubbing: Gary Lockwood (uncredited) |
| Arsenio Corsellas | ... | voice dubbing: Gérard Tichy (uncredited) |
| Javier Dotú | ... | voice dubbing: various (uncredited) |
| Joaquín Díaz | ... | voice dubbing: Fernando Hilbeck (uncredited) |
| Antonio Fernández | ... | voice dubbing: Daniel Martín (uncredited) |
| Elsa Fábregas | ... | voice dubbing: Elke Sommer (uncredited) |
| Peter Goldbaum | ... | production assistant (uncredited) |
| Francisco Guillen | ... | administrator (uncredited) |
| Rogelio Hernández | ... | voice dubbing: Roger Hanin (uncredited) |
| Luis Herrero | ... | production assistant (uncredited) |
| Dionisio Macías | ... | voice dubbing: Carlos Ballesteros (uncredited) |
| Vicente Martínez | ... | voice dubbing: Luis Barboo/various (uncredited) |
| Pepe Mediavilla | ... | voice dubbing: Maurizio Arena (uncredited) |
| Eduardo Muntada | ... | voice dubbing: Fabrizio Capucci (uncredited) |
| César Ojinaga | ... | voice dubbing (uncredited) |
| Ángel Parrondo | ... | production assistant (uncredited) |
| Felip Peña | ... | voice dubbing: Jean Servais (uncredited) |
| Francisco Piquer | ... | voice dubbing (uncredited) |
| Luis Posada Mendoza | ... | voice dubbing: Jorge Rigaud (uncredited) |
| Marcelino Riba-Abizanda | ... | first production assistant (uncredited) |
| José Antonio Rodríguez | ... | voice dubbing: Enrique Ávila/various (uncredited) |
| José Luis Sansalvador | ... | voice dubbing: Jack Palance (uncredited) |
| Ricard Solans | ... | voice dubbing (uncredited) |
| Miguel Ángel Valdivieso | ... | voice dubbing: Lorenzo Robledo (uncredited) |
