"Father O'Malley is sent to St. Mary's, a run-down parochial school on the verge of condemnation. He and Sister Benedict work together in an attempt to save the school, though their differing methods often lead to good-natured disagreements."
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 Patsy Gallagher
Martha Sleeper
as Mary Gallagher
Rhys Williams
as Dr. McKay
Richard Tyler
as Eddie Breen
Una O'Connor
as Mrs. Breen
Edward Coch Jr.
as Baby Jesus (uncredited)
Aina Constant
as Nun (uncredited)
Jimmy Crane
as Luther (uncredited)
Gwen Crawford
Bobby Dolan Jr.
as Bobby (uncredited)
Jimmie Dundee
as Cabbie (uncredited)
Bobby Frasco
as Tommy Smith (uncredited)
Matt McHugh
as Sporting Goods Salesman (uncredited)
Peggy McKim
as Schoolgirl (uncredited)
Betty Jean Nichols
Georgie Nokes
as Boy (uncredited)
Eva Novak
Joe Palma
as Workman (uncredited)
Dewey Robinson
as Pedestrian Pulling Bogardus from Under Truck (uncredited)
Cora Shannon
as Elderly Woman (uncredited)
John Smith
as Choir Member (uncredited)
Pietro Sosso
as Blind Man (uncredited)
Minerva Urecal
as Landlady (uncredited)
Edna May Wonacott
as Delphine Ford (uncredited)
Leo McCarey
Director
Dudley Nichols
Screenplay
Producer
Harry Marker
Editor
William Flannery
Art Direction
Darrell Silvera
Set Decoration
Edith Head
Costume Design
Story
Harry Scott
Assistant Director
George Barnes
Director of Photography
Robert Emmett Dolan
Original Music Composer
Albert S. D'Agostino
James G. Stewart
Sound
Richard Van Hessen
Vernon L. Walker
Special Effects
Louis Kaufman
Musician
Stephen Dunn
Sound Recordist