"In Barcelona, secret agent Antoine Donadieu thwarts the plans of a Nazi scientist."
Jean Marais
as Antoine Donadieu
Marisa Mell
as Frieda
Gérard Tichy
as Matras
Howard Vernon
as Le professeur
Jean Lara
as Pelletier
André Cagnard
as Gouferolles
Léon Zitrone
as Self
José María Caffarel
as Technicien de la police
Carlos Casaravilla
as Varosky
Antonio Casas
as Colonel
Álvaro de Luna
as Hamlet
Fernando Guillén
as Colonel assistant
Víctor Israel
Rico López
as
José Manuel Martín
as Jaime
Carlos Otero
Óscar Pellicer
Mario Via
Carlos Hurtado
Jacques Colombier
Production Design
Antonio Macasoli
Director of Photography
Jean Douarinou
Set Decoration
Gilles Grangier
Director
André Hossein
Original Music Composer
Juan Alberto Soler
Screenplay
Jacques Robert
René Cambon
Novel
