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 as Nun (uncredited)

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 as Schoolgirl (uncredited)

Georgie Nokes as Boy (uncredited)

Eva Novak as Nun (uncredited)

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)