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Jorge Mistral
as Jean Balzac / Paul Banek
Nani Fernández
as Dana
Rubén Rojo
as Chapek
Jesús Tordesillas
as Josef
Félix Dafauce
as Grumko
Nicolás D. Perchicot
as Padre Oberski
Juan Manuel Soriano
as Genka
María Dolores Gispert
as Ludmilla
Tomás Torres
as Juan
César Ojinaga
as Lukas
Joan Capri
as Especialista en minas
José Marco
as Kadenko
Diana Mayer
as Isa
Esther Parera
as Maruska
Fernando Cebrián
as hermano de Kadenko
Pepe Rubio
as (no acreditado)
Ventura Oller
Sigfrido Burman
Set Decoration
José F. Aguayo
Director of Photography
Rafael Richart
Costume Design
Petra de Nieva
Editor
Isidro B. Maiztegui
Original Music Composer
Telesforo de la Plaza
Production Manager
Francisco Sempere
José Antonio Nieves Conde
Director
José Antonio de la Loma
Story
Lluís Josep Comerón
Jorge Illa
José María Forqué
Manuel Tamayo Castro
Writer
