Rossano Brazzi
— Luc Ferrand
Joan Fontaine
— Françoise Ferrand
Bradford Dillman
— Bertrand Griot
Christine Carère
— Dominique Vallon
Eduard Franz
— Monsieur Vallon
Katherine Locke
— Madame Vallon
Kathryn Givney
— Madame Griot
Steven Geray
— Denis
Johnny Mathis
— Johnny Mathis
Trude Wyler
— Mme. Denis
Sandy Livingston
— Catherine
Renate Hoy
— Mademoiselle Minot
Muzaffer Tema
— Pierre
Sheryl Deauville
— Contessa at Opera (uncredited)
Yvette Mimieux
— (uncredited)
Edit Angold
— Cook (uncredited)
Herman Belmonte
— Club Patron (uncredited)
Gabrille Del Valle
— South American (uncredited)
David Hoffman
— Concierge (uncredited)
Pat Mitchell
— (uncredited)
Hans Moebus
— Club Patron (uncredited)
George Nardelli
— Waiter (uncredited)
Murray Pollack
— Club Patron (uncredited)
Paul Ravel
— Club Patron (uncredited)
Carol van Dyke
— South American (uncredited)
Judith Woodbury
— Club Patron (uncredited)