

"The Whole World's in Tune... with Bing and Bergman together at their most brilliant best!"
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.
Father Chuck O'Malley

Sister Mary Benedict

Horace P. Bogardus

Joe Gallagher

Sister Michael

Patsy Gallagher

Mary Gallagher

Dr. McKay

Eddie Breen
Mrs. Breen

Baby Jesus (uncredited)
Nun (uncredited)
Luther (uncredited)
Nun (uncredited)
Bobby (uncredited)
Cabbie (uncredited)
Tommy Smith (uncredited)
Sporting Goods Salesman (uncredited)

Schoolgirl (uncredited)
Schoolgirl (uncredited)
Boy (uncredited)
Nun (uncredited)

Workman (uncredited)
Pedestrian Pulling Bogardus from Under Truck (uncredited)

Elderly Woman (uncredited)
Choir Member (uncredited)

Blind Man (uncredited)

Landlady (uncredited)

Delphine Ford (uncredited)
