Audrey Hepburn
Princess Ann
Gregory Peck
Joe Bradley
Eddie Albert
Irving Radovich
Hartley Power
Mr. Hennessy
Harcourt Williams
Ambassador
Margaret Rawlings
Countess Vereberg
Tullio Carminati
Gen. Provno
Paolo Carlini
Mario Delani
Claudio Ermelli
Giovanni
Paola Borboni
Charwoman
Alfredo Rizzo
Cab driver
Giuliano Raffaelli
Faceless Man on the Barge (uncredited)
Andrea Esterhazy
Embassy Aide (uncredited)
Catherine Wyler
Schoolgirl (uncredited)
Marco Tulli
Pallid Young Man Dancing with Princess (uncredited)
Maurizio Arena
Young Boy with Car (uncredited)
Mimmo Poli
Worker Hugging the Three Out Side Police Station (uncredited)
Gildo Bocci
Flower Seller (uncredited)
Luigi Moneta
Old Man Dancing with Princess (uncredited)
Richard McNamara
Correspondent at Poker Game (uncredited)
Dianora Veiga
Girl at Cafe Waving at Irving (uncredited)
Tania Weber
Francesca - Irving's Model (uncredited)
Piero Pastore
Faceless Man on the Barge (uncredited)
Carlo Rizzo
Police Official (uncredited)
Gianna Segale
Girl at Cafe Waving at Irving (uncredited)
Laura Solari
Hennessy's Secretary
George Higgins
Correspondent at Poker Game (uncredited)
Gorella Gori
Shoe Seller
Armando Annuale
Admiral Dancing with Princess (uncredited)
Nadia Balabine
(uncredited)