Audrey Hepburn character Sister Luke
Peter Finch character Dr. Fortunati
Edith Evans character Rev. Mother Emmanuel
Peggy Ashcroft character Mother Mathilde
Dean Jagger character Dr. Hubert Van Der Mal
Mildred Dunnock character Sister Margharita
Beatrice Straight character Mother Christophe
Patricia Collinge character Sister William
Rosalie Crutchley character Sister Eleanor
Ruth White character Mother Marcella
Barbara O'Neil character Mother Didyma
Margaret Phillips character Sister Pauline
Patricia Bosworth character Simone
Colleen Dewhurst character Dangerous Hospital Patient
Stephen Murray character Chaplain
Lionel Jeffries character Dr. Goovaerts
Niall MacGinnis character Father Vermeuhlen
Eva Kotthaus character Sister Marie
Molly Urquhart character Sister Augustine
Dorothy Alison character Sister Aurelie
Jeanette Sterke character Louise
Errol John character Illunga
Diana Lambert character Lisa
Orlando Martins character Kalulu
Penelope Horner character Jeanette Milonet (uncredited)
Charles Lamb character Pascin (uncredited)
Ave Ninchi character Sister Bernard (uncredited)
Richard O'Sullivan character Pierre (uncredited)
Frank Singuineau character Murderer of Sister Aurelie (uncredited)
Elsa Albani character (uncredited)
Gabriella Andreini character (uncredited)
Juan Aymerich character (uncredited)
Grazia De Rossi character (uncredited)
Giovanna Galletti character (uncredited)
