Liza Minnelli as Nina

Ingrid Bergman as Contessa Sanziani

Charles Boyer as Count Sanziani

Spiros Focás as Mario Morello

Tina Aumont as Valentina

Gabriele Ferzetti as Antonio Vicari

Geoffrey Copleston as Hotel Manager

Antonio Jacono as Hotel Porter

Fernando Rey as Charles Van Maar

Orso Maria Guerrini as Gabriele d'Orazio

Jean Mas as Kaiser Wilhelm

Isabella Rossellini as Sister Pia

Amedeo Nazzari as Tewfik

Virgilio Volpe as Restaurant Owner

Philippe Hersent as Cook

Jacques Stany as Reporter

Marino Masé as Hotel Forum Porter

Richard Oneto as Hotel Forum Manager

Giampiero Albertini as Mr. DePerma

Andrea Esterhazy as Jeweler

Loris Bazzocchi as Cab Driver

Vlado Stegar as Bank Clerk

Rik Battaglia as Nina's Father

Arnoldo Foà as Pavelli (uncredited)

Armando Tortorici as Hotel Cook (uncredited)

Richard Dunne as Hotel Guest (uncredited)

Corinne Dunne as Hotel Guest (uncredited)