Maria Brentano / Brent / Lena Collins

Valentina Cortese

Louis Balan

Serge Reggiani

Nora Brentano

Audrey Hepburn

Anselmo

Charles Goldner

Penny

Megs Jenkins

Nora as a Child

Angela Foulds

Miss Jackson

Irene Worth

Inspector Eliot

Reginald Tate

Nora Brentano as a child

Angela Fouldes

Syd Burnett

Sydney Tafler

Sergeant Newcome

Norman Williams

Undetermined (Minor Role - Paris Sequence) (uncredited)

Simone Silva

Manager of the British Pavilion

Michael Shepley

Mrs. Reginald Kellick

Athene Seyler

Steenie

Geoffrey Hibbert

Daly

John Ruddock

Rodd

Michael Allan

Fedor Luki

John Field

Hairdresser

Bob Monkhouse

General Galbern

Hugo Schuster

Frack

Lionel Harris

Bentley

Rollo Gamble

Bill

John Penrose

John

John Chandos

Charlie

Michael Ripper

Member of Paris Committee

John Louis Mansi

Woman on London Committee

Yvonne Coulette

Member of Paris Committee

John Gabriel

Member of Paris Committee

Olga Landiak

Galbern's Bodyguard

Frederick Schiller

Galbern's Bodyguard

Phaedros Antonio

Queval

Gaston Richer

Plain Clothes Man

Derek Elphinstone

Plain Clothes Man

Edward Evans

Postman

Jack McNaughton

Shoe Shop Girl

Ingeborg von Kusserow

Scarf Woman

Helen Ford

Gladys

Ann Lancaster

Floozie

Grace Draper

Little Man

Bertram Shuttleworth

Waitress

Pamela Harrington

The Valet

John Allen

Nursing Sister

Bay White

Irish Police Inspector

Joe Linnane

Irish Police Sergeant

Sam Kydd