Loretta Young as Sister Margaret

Celeste Holm as Sister Scholastica

Hugh Marlowe as Robert Masen

Elsa Lanchester as Amelia Potts

Thomas Gomez as Luigi Rossi

Dorothy Patrick as Kitty

Basil Ruysdael as The Bishop

Dooley Wilson as Anthony James

Regis Toomey as Monsignor Talbot

Mike Mazurki as Sam

Walter Baldwin as Claude Jarman (uncredited)

Pati Behrs as Nun (uncredited)

John Bleifer as Rosey (uncredited)

Nan Boardman as Nun (uncredited)

Wally Brown as Howard Sheldon (uncredited)

Russ Clark as Policeman (uncredited)

Louise Colombet as Nun (uncredited)

Teddy Driver as Cherub (uncredited)

Robert Foulk as New York City Policeman (uncredited)

Gordon Gebert as Willie Matthews (uncredited)

Eula Guy as Mrs. O'Connor (uncredited)

Louis Jean Heydt as Al Newman (uncredited)

Tim Huntley as Buzz Townsend-Cooper (uncredited)

Danny Jackson as George (Jarman's Assistant) (uncredited)

Virginia Keiley as Mrs. Townsend-Cooper (uncredited)

Nolan Leary as Bethlehem Station Master (uncredited)

Henri Letondal as Father Barraud (uncredited)

Ian MacDonald as Mr. Matthews (uncredited)

Marion Martin as Rossi's Manicurist (uncredited)

Edwin Max as Whitey (uncredited)

Roddy McCaskill as Cherub (uncredited)

Gary Pagett as Johnnie Matthews (uncredited)

Jean Prescott as Mrs. Matthews (uncredited)

Yvette Reynard as Nun (uncredited)

Frank Richards as Lefty (uncredited)

Loulette Sablon as Nun (uncredited)