Marina Vlady as Sophie Brulard

Peter van Eyck as Franck Richter

Jean Gaven as Ernest Sapinaud

Dora Doll as Louise Richter

Marcelle Géniat as Mme Gretchikine

Paul Guers as Claude Broux

René Havard as Tony

Maryse Martin as La serveuse aux saucisses

André Bervil as Un commissaire

Alain Bouvette as Un photographe

Pierre Fromont as Un inspecteur

Olga Baïdar-Poliakoff as La journaliste dactylo

Yvette Lebon as Mme Gontcharoff

Pierre Dux as Commissaire Moret

Jean Balthasar as (uncredited)

Joëlle Bernard as La fille au restaurant (uncredited)

Jacques Bézard as (uncredited)

Michel Damien as (uncredited)

Gérard Darrieu as L'agent cycliste au billet de loterie (uncredited)

Daniel Emilfork as Le barman du Montana (uncredited)

Danièle Fabray as (uncredited)

Lucien Frégis as Un agent (uncredited)

Gabriel Gobin as Un locataire (uncredited)

Suzanne Grey as La locataire (uncredited)

Lucien Guervil as Le bistrot (uncredited)

Jess Hahn as L'Américain (uncredited)

Julien Maffre as Un agent (uncredited)

Sophie Mallet as (uncredited)

Marc Michel as (uncredited)

Max Mégy as (uncredited)

Maryse Paillet as La concierge (uncredited)

Marcel Rouzé as Un inspecteur (uncredited)

Roger Saget as Le patron de l'hôtel (uncredited)

Irène Tunc as La belle-fille (uncredited)

Hélène Vallier as (uncredited)

Odile Versois as (uncredited)

Jean Sylvain as Le greffier (uncredited)