•
Jean Seberg as Bettina Ralton •
Claude Rich as Bernard Noblet •
Elsa Martinelli as Juliette •
Pierre Vernier as Roger •
Jacques Morel as Amédée de St. Leu •
Jean-Paul Moulinot as Le bijoutier •
Jacques Balutin as Un agent •
Elisabeth Flickenschildt as Madame Ralton •
France Rumilly as La dame à la bague •
Daniel Ceccaldi as Le capitaine du bateau •
Claude Darget as L'inspecteur cantonal •
Henri Virlojeux as Picard •
Annette Poivre as Une femme de ménage •
Jacques Dynam as Le commissaire •
Pierre Mirat as Un brigadier • as Prof. Schmoll ==References==