Margaret O'Brien
— Sheila O'Monahan
Lionel Barrymore
— Dr. Richard Gaunght
Lewis Stone
— Judge James Trumbell
Thomas Mitchell
— Terence Alaysius O'Davern
Edward Arnold
— Theodore Findley
Ray Collins
— Judge Watson
Jane Darwell
— Sister Mary Brigid
Harry Davenport
— The Ancient
Cyd Charisse
— Rena Fairchild
Henry O'Neill
— Prof. Horace Appleby
Charles Dingle
— Paul Badger
Warner Anderson
— The O'Monahan
Barbara Billingsley
— Sister Mary Leonard
Billy Barty
— Bit