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

Simone Silva

Undetermined (Minor Role - Paris Sequence) (uncredited)

Michael Shepley

Manager of the British Pavilion

Athene Seyler

Mrs. Reginald Kellick

Sydney Tafler

Syd Burnett

Hugo Schuster

General Galbern

John Penrose

Bill

Michael Ripper

Charlie

Louis Mansi

Member of Paris Committee

Frederick Schiller

Galbern's Bodyguard

Jack McNaughton

Postman

Ingeborg von Kusserow

Shoe Shop Girl

Bob Monkhouse

Hairdresser

Helen Ford

Scarf Woman