Sister Luke
Audrey Hepburn
Dr. Fortunati
Peter Finch
Mother Didyma
Barbara O'Neil
Sister Pauline
Margaret Phillips
Simone
Patricia Bosworth
Dangerous Hospital Patient
Colleen Dewhurst
Chaplain
Stephen Murray
Dr. Goovaerts
Lionel Jeffries
Father Vermeuhlen
Niall MacGinnis
Sister Marie
Eva Kotthaus
Sister Augustine
Molly Urquhart
Sister Aurelie
Dorothy Alison
Rev. Mother Emmanuel
Edith Evans
Louise
Jeanette Sterke
Illunga
Errol John
Lisa
Diana Lambert
Kalulu
Orlando Martins
Jeanette Milonet (uncredited)
Penelope Horner
Pascin (uncredited)
Charles Lamb
Sister Bernard (uncredited)
Ave Ninchi
Pierre (uncredited)
Richard O'Sullivan
Murderer of Sister Aurelie (uncredited)
Frank Singuineau
(uncredited)
Elsa Albani
Mother Mathilde
Peggy Ashcroft
Gabriella Andreini
Juan Aymerich
Grazia De Rossi
Giovanna Galletti
Dr. Hubert Van Der Mal
Dean Jagger
Sister Margharita
Mildred Dunnock
Mother Christophe
Beatrice Straight
Sister William
Patricia Collinge
Sister Eleanor
Rosalie Crutchley
Mother Marcella
Ruth White
Director
Fred Zinnemann
Producer
Original Music Composer
Franz Waxman
Conductor
Still Photographer
Léo L. Fuchs
Assistant Director
Bernard Vorhaus
Sergio Leone
Novel
Kathryn C. Hulme
Screenplay
Robert Anderson
Technical Advisor
Stanley Browne
Marie-Louise Habets
Director of Photography
Franz Planer
Henry Blanke
Art Direction
Alexandre Trauner
Costume Design
Marjorie Best
Editor
Walter Thompson
Set Decoration
Maurice Barnathan
Hairstylist
Production Manager
Julien Derode
Sound Recordist
Robert J. Miller
Sound
Oliver S. Garretson
Orazio Tassara
Script Supervisor
Elaine Schreyeck
Chuck Hansen
Location Manager
Christian Ferry
Art Department Manager
Italo Tomassi
Camera Operator
Goffredo Bellisario
Makeup Artist
Alberto De Rossi
Second Unit
Sam Zebba