Polly
Gloria Guida
Paul De Revere
Leonard Mann
Elio Stefanizzi
Claudio Gora
Waiter
Giuseppe Marrocco
Policeman
Attilio Pelegatti
Old Gentleman (uncredited)
Kenneth Benda
Dr. Hobbes (uncredited)
Tom Felleghy
Brooks (uncredited)
Antonio Maimone
Sir Arthur's Butler (uncredited)
Filippo Perego
Lady Clementine's Friend (uncredited)
Maria Tedeschi
Sir Arthur Dundee
Joseph Cotten
Sir Harold Boyd
Adolfo Celi
Supt. Jeff Hawks
Anthony Steel
Lady Gloria Boyd
Janet Ågren
Lady Clementine De Revere
Alida Valli
Sgt. Phillips
Franco Ressel
Gibson
Paul Müller
Saboteur
Mario Novelli
Editor
Franco Fraticelli
Director
Giuseppe Rosati
Writer
Music
Carlo Savina
Director of Photography
Giuseppe Bernardini
Art Direction
Roberto Ranucci
Makeup Artist
Gloria Granati
General Manager
Ferruccio Mosca
Production Supervisor
Felice Ruffini
Special Sound Effects
Luciano Anzellotti
Sound Mixer
Romano Checcacci
Special Effects
Armando Grilli
Electrician
Francesco Cerboni
Camera Operator
Marco Sperduti
Key Grip
Mario Filoni
Assistant Editor
Sergio Fraticelli
Administration
Giulio Crescenzi