Gina Lollobrigida as Sylvia Sorrego / Helena Ricci

Jean-Claude Pascal as Pierre Martel

Arletty as Blanche

Raymond Pellegrin as Mario

Peter van Eyck as Fred

Jean Témerson as Xavier Noblet

Jean Hébey as Police commissioner

Jo Dest as Karl, boss of the bistro

Paul Amiot as Captain (uncredited)

Odette Barencey as Gertrude (uncredited)

Charles Bayard as (uncredited)

Gérard Buhr as Legionnaire (uncredited)

Leila Farida as Aïcha (uncredited)

Georges Vitray as Hotel doorman (uncredited)

Roger Vincent as Maître d'hôtel (uncredited)

Marcel Rouzé as Hotel doorman (uncredited)

Bernard Musson as Painter (uncredited)

Darling Légitimus as (uncredited)

Gabrielle Fontan as Religious (uncredited)