Bing Crosby
as Father Chuck O'Malley
Ingrid Bergman
as Sister Mary Benedict
Henry Travers
as Horace P. Bogardus
William Gargan
as Joe Gallagher
Ruth Donnelly
as Sister Michael
Joan Carroll
as Patricia "Patsy" Gallagher
Martha Sleeper
as Mary Gallagher
Rhys Williams
as Dr. McKay