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Jean Valmont
as Marcel Mauriac
Krista Nell
as Greta Nielsen
George Patton
as Commissario
John Benedy
as Robert Servais (as John Bennedy)
Tullio Altamura
as LeClerc (as Tor Altmayer)
Aldo Bufi Landi
as Charles Clancy
Antonio De Leo
as Louis (as Tony De Leo)
Franco Jamonte
as
Ugo Adinolfi
as (credit only)
Franco Pasquetto
as Michel
Gianni Pulone
Franco Ressel
as Mr. Wilkins
Fabienne Dali
as Josette
Franco Montemurro
Director
Screenplay
Gianfranco Clerici
Georges Reville
Augusto Tiezzi
Director of Photography
Jolanda Benvenuti
Editor
Fortunato Misiano
Angelo Francesco Lavagnino
Original Music Composer
Pier Vittorio Marchi
Art Direction
Walter Patriarca
Costume Design
Producer
Nino Misiano
Production Manager
Elio Saroli
Unit Manager
Assistant Director
Jean Lefèvre
Enrico Betti Berutto
Camera Operator
Renato Mascagno
Assistant Camera
Mirella Malatesta
Script Supervisor