
David Niven
Rex Allerton
Acting

Herbert Lom
André Amico
Acting

Charles Victor
Jennings
Acting

Gordon Jackson
Ralph
Acting

Hugh McDermott
Rodney Wheeler
Acting

Stanley Maxted
Oliver Stanton
Acting
![John Chandos]()
John Chandos
Gulliver Kee
Acting

Theodore Bikel
Parsimonious
Acting

Sebastian Cabot
Suarez
Acting

Eugene Deckers
Vernet
Acting

Andreas Malandrinos
Fodor (as Andrea Malandrinos)
Acting
![Nicholas Stuart]()
Nicholas Stuart
American Radio Announcer
Acting

Michael Ward
A Hotel Receptionist
Acting

Helena Pickard
Sally's Mother
Acting

Marcel Poncin
Priest
Acting
![Alexis Chesnakov]()
Alexis Chesnakov
The Russian Man
Acting
![Nelly Arno]()
Nelly Arno
The Russian Woman
Acting
![Gabrielle Blunt]()
Gabrielle Blunt
Doreen
Acting
![Boscoe Holder]()
Boscoe Holder
A Witch Doctor
Acting

John Glyn-Jones
Prince Boris
Acting
![Michael Alexander]()
Michael Alexander
Minor Role (uncredited)
Acting

Humphrey Bogart
Self (uncredited)
Acting

Michael Craig
Cameraman Assistant (uncredited)
Acting
![Betty Henderson]()
Betty Henderson
Bit Part (uncredited)
Acting

Hattie Jacques
Chambermaid (uncredited)
Acting
![Alvar Liddell]()
Alvar Liddell
Self (uncredited)
Acting

Jean Marsh
Dancer in Sally's Dream (uncredited)
Acting

Dido Plumb
Man in Audience (uncredited)
Acting