Michèle Morgan as Hélène Giovanni

Raf Vallone as Aldo Giovanni

Marthe Mercadier as Arlette Bernardin

Jean Gaven as Alexandre Buisson

Albert Duvaleix as Barnet

Robert Dalban as Inspecteur Chardin

Louis Seigner as L'avocat général

Olivier Hussenot as Louis Bernardin

Jacques Castelot as Me Ritter

Jean Toulout as Le président des assises

Dora Doll as L'entraîneuse

Raphaël Patorni as Bertrand

Martine Alexis as Olga

Albert Michel as Le réptionniste de l'hôtel rouennais

Pierre Moncorbier as Le secrétaire de Chardin

Aimée Fontenay as La chanteuse au trapèze

Yves Rozec as Trapéziste

Jacques Beauvais as (uncredited)

Jean-Marie Bon as Le pensionnaire méridionnal (uncredited)

René Bourbon as Le gros pensionnaire (uncredited)

Roland Catalano as Trapèze (uncredited)

Chantal de Rieux as (uncredited)

Gil Delamare as Un homme de l'Escurial (uncredited)

Paul Demange as Le barman (uncredited)

Pierre Duncan as Le videur de l'Escurial (uncredited)

Micheline Gary as Irène (uncredited)

Sylvain Lévignac as Un garçon de piste (uncredited)

Yette Lucas as Mme Brisset la concierge (uncredited)

Robert Mercier as Le bistrot (uncredited)

Jacques Moulières as Enfant Bernardin (uncredited)

Jimmy Perrys as Marco - le clown (uncredited)

Robert Seller as Le caissier (uncredited)

Ernest Varial as (uncredited)

Robert Vattier as Le directeur de l'hôtel (uncredited)