as Paul Kerjean
as Michel Saint-Claude
as Hélène Kerjean
as Walter, le détective
as Laura Weber
as Madame Benoît-Lambert
as Cornelius A. Woaegen
as Hartmann
as Guérande
as Pierre Bayen
as Dr. Kramer
as Madame Bronsky
as Fred Great
as Jacques Benoît-Lambert
as l'informateur
as Holstein
as la sécretaire de Kerjean
as Jack Sleiter
as Arlène Robert
as Sylvestre
as Vittorio Orta
as Kurt von Schroeder
as Docteur Kramer
as Ralph von Lübeck
as L'employé de l'hôtel