Audrey Hepburn

as Sister Luke

Peter Finch

as Dr. Fortunati

Edith Evans

as Rev. Mother Emmanuel

Peggy Ashcroft

as Mother Mathilde

Dean Jagger

as Dr. Hubert Van Der Mal

Mildred Dunnock

as Sister Margharita

Beatrice Straight

as Mother Christophe

Patricia Collinge

as Sister William