Directed by
| Antonio Isasi-Isasmendi | ||
Writing Credits (in alphabetical order)
| Antonio Irles | ... | (screenplay) |
| Antonio Irles | ... | (story) |
| Antonio Isasi-Isasmendi | ... | (screenplay) |
| Antonio Isasi-Isasmendi | ... | (story) |
Cast (in credits order)
| Pepy Domingo | ... | Margot | |
| Conrado San Martín | ... | Inspector jefe Nogués | |
| Luis Induni | ... | Anselmo | |
| Josep Maria Angelat | ... | Inspector Blasco | |
 |
Jaime Avellán | ... | Inspector Antonio Rius |
|
|
Jesús Colomer | ... | Ricardo Pérez |
| María Victoria Durá | ... | Madame Pérez | |
|
|
Jaime Bellaubi | ||
|
|
Emilio Fábregas | ... | Comisario Le Moine |
|
|
Rafael Resines | ||
|
|
Juan Piñol | ||
|
|
Alberto Vialis | ... | Comisario Ramos |
|
|
Luis Salazar | ||
|
|
Manuel Solé | ||
|
|
Jaime Masaguet | ||
| José Marco | ... | Herbert Gast | |
| Rest of cast listed alphabetically: | |||
|
|
Gloria García | ||
|
|
Manuel Bronchud | ... | Policía del tren (uncredited) |
|
|
Mireille Ozy | ... | Súbdita norteamericana (uncredited) |
Music by
| Indalecio Cisneros | ||
| Ricardo Lamotte de Grignón | ||
Cinematography by
| Federico G. Larraya | ||
Editing by
| Emilio Rodríguez | ||
Set Decoration by
| Juan Frexe | ||
Second Unit Director or Assistant Director
| Luis García | ... | assistant director |
Sound Department
| Enrique de la Riva | ... | sound |
Camera and Electrical Department
| Aurelio G. Larraya | ... | camera operator |
| Juan Gelpí | ... | still photographer |
| Bogdan Zoubowitch | ... | camera operator (as Bob Zubowich) |
Additional Crew
| Antonio Irles | ... | direction secretary |
| Juan Zaro | ... | stage manager |
| Miguel Alonso | ... | voice dubbing (uncredited) |
| Josep Maria Angelat | ... | voice dubbing: Luis Induni (uncredited) |
| Eduardo Berraondo | ... | voice dubbing: various (uncredited) |
| Manuel Cano | ... | voice dubbing: various (uncredited) |
| Emilio Fábregas | ... | voice dubbing: Alberto Vialis/various (uncredited) |
| Rafael Navarro | ... | voice dubbing: various (uncredited) |
| José María Nunes | ... | voice dubbing: José Marco/various (uncredited) |
| César Ojinaga | ... | voice dubbing (uncredited) |
| Jesús Puche | ... | voice dubbing (uncredited) |
| José Soler | ... | voice dubbing (uncredited) |
| Encarna Sánchez | ... | voice dubbing: Pepy Domingo (uncredited) |
| Ramón Vaccaro | ... | voice dubbing (uncredited) |
| Miguel Ángel Valdivieso | ... | voice dubbing (uncredited) |
| Alberto Vialis | ... | voice dubbing: Emilio Fábregas (uncredited) |
| José Vidal | ... | voice dubbing: various (uncredited) |
