"A famous American secret service agent tries to rescue a German 17-year-old prodigy scientist who has been captured by the Russians."
Eddie Constantine
as Mike Warner
Nelly Benedetti
as La princesse Soledad
Daniel Ceccaldi
as Stephan
Laura Valenzuela
as Nina
Luis Dávila
as Boris Gourdine
Dieter Kollesch
as Carl Friedrich Bibisch
Alfredo Mayo
as Boss de Mike
George Rigaud
as Directeur Bibisch
José María Prada
as Nicholas Van Damme
Enriqueta Carballeira
as Isabel
Milo Quesada
as Manuel
María Luisa San José
as
Yvan Chiffre
as Un homme de main (uncredited)
Henri Guégan
Jean Tournier
Director of Photography
Ward Swingle
Original Music Composer
Marcel Ophüls
Screenplay
Director
Jacques Robert
Louisette Hautecœur
Editor
Henri Baum
Producer
Claude Carliez
Stunt Coordinator
Alain Boisnard
Underwater Camera