Valentina Cortese
Maria Brentano / Brent / Lena Collins
Serge Reggiani
Louis Balan
Audrey Hepburn
Nora Brentano
Megs Jenkins
Penny
Irene Worth
Miss Jackson
Reginald Tate
Inspector Eliot
Charles Goldner
Anselmo
Angela Fouldes
Nora Brentano as a child
Simone Silva
Undetermined (Minor Role - Paris Sequence) (uncredited)
Norman Williams
Sergeant Newcome
Michael Shepley
Manager of the British Pavilion
Athene Seyler
Mrs. Reginald Kellick
Sydney Tafler
Syd Burnett
Geoffrey Hibbert
Steenie
John Ruddock
Daly
Michael Allan
Rodd
John Field
Fedor Luki
Hugo Schuster
General Galbern
Lionel Harris
Frack
Rollo Gamble
Bentley
John Penrose
Bill
John Chandos
John
Michael Ripper
Charlie
John Louis Mansi
Member of Paris Committee
John Gabriel
Member of Paris Committee
Olga Landiak
Member of Paris Committee
Frederick Schiller
Galbern's Bodyguard
Phaedros Antonio
Galbern's Bodyguard
Gaston Richer
Queval
Derek Elphinstone
Plain Clothes Man
Edward Evans
Plain Clothes Man
Jack McNaughton
Postman
Ingeborg von Kusserow
Shoe Shop Girl
Bob Monkhouse
Hairdresser
Helen Ford
Scarf Woman
Ann Lancaster
Manicurist
Grace Draper
Floozie
Bertram Shuttleworth
Little Man
Pamela Harrington
Waitress
John Allen
The Valet
Bay White
Nursing Sister
Joe Linnane
Irish Police Inspector
Sam Kydd
Irish Police Sergeant
Thorold Dickinson
Director
Thorold Dickinson
Story
Thorold Dickinson
Screenplay
Joyce Cary
Story
Wolfgang Wilhelm
Screenplay
Christianna Brand
Additional Dialogue
Hal Mason
Production Supervisor
Gordon Dines
Director of Photography
Peter Tanner
Editor
Ralph D. Hogg
Unit Production Manager
Stephen Dalby
Sound Supervisor
Chic Waterson
Camera Operator
Norman Priggen
Assistant Director
Arthur Bradburn
Sound Recordist
Phyllis Crocker
Continuity
Anthony Mendleson
Costume Designer
Sydney Pearson
Special Effects
Ernest Taylor
Makeup Artist
Harry Wilton
Makeup Artist
Barbara Barnard
Hairstylist
William Kellner
Art Direction
Roberto Gerhard
Music
Ernest Irving
Conductor
Andrée Howard
Choreographer
Sidney Cole
Producer
Roy Gough
Still Photographer