Character Name : Alpha

Original Name : Margaret O'Brien

Gender : Female

Character Name : Mike Regan

Original Name : James Craig

Gender : Male

Character Name : Katie Mallory

Original Name : Marsha Hunt

Gender : Female

Character Name : Professor Peter Vincent

Original Name : Philip Merivale

Gender : Male

Character Name : Professor Josh Pringle

Original Name : Henry O'Neill

Gender : Male

Character Name : Professor Catty

Original Name : Donald Meek

Gender : Male

Character Name : Packy Roost

Original Name : Keenan Wynn

Gender : Male

Character Name : Dr. Woodring

Original Name : Alan Napier

Gender : Male

Character Name : Rhoda Kitterick

Original Name : Sara Haden

Gender : Female

Character Name : Mrs. Catty

Original Name : Kathleen Lockhart

Gender : Female

Character Name : Professor Richards

Original Name : Howard Freeman

Gender : Male

Character Name : Professor Endicott

Original Name : Walter Fenner

Gender : Male

Character Name : Mrs. Pringle

Original Name : Elisabeth Risdon

Gender : Female

Character Name : Jerry

Original Name : Robert Blake

Gender : Male

Character Name : Telephone Operator (uncredited)

Original Name : Barbara Bedford

Gender : Female

Character Name : Hat Check Girl (uncredited)

Original Name : Ava Gardner

Gender : Female

Character Name : Fighter (uncredited)

Original Name : Mike Mazurki

Gender : Male

Character Name : Bobby's Mother (uncredited)

Original Name : Pauline Starke

Gender : Female

Character Name : Policeman (uncredited)

Original Name : Eddie Acuff

Gender : Male

Character Name : Pepi (uncredited)

Original Name : Hooper Atchley

Gender : Male

Character Name : Reporter (uncredited)

Original Name : William Bishop

Gender : Male

Character Name : Matron (uncredited)

Original Name : Naomi Childers

Gender : Female

Character Name : Chinese Man (uncredited)

Original Name : Victor Sen Yung

Gender : Male