Cast
Margaret O'Brien
Alpha
James Craig
Mike Regan
Henry O'Neill
Professor Josh Pringle
Keenan Wynn
Packy Roost
Alan Napier
Dr. Woodring
Barbara Bedford
Telephone Operator (uncredited)
Ava Gardner
Hat Check Girl (uncredited)
Hooper Atchley
Pepi (uncredited)
Philip Merivale
Professor Peter Vincent
Walter Fenner
Professor Endicott
Victor Sen Yung
Chinese Man (uncredited)
Elisabeth Risdon
Mrs. Pringle
Donald Meek
Professor Catty
Sara Haden
Rhoda Kitterick
Kathleen Lockhart
Mrs. Catty
Mike Mazurki
Fighter (uncredited)
Pauline Starke
Bobby's Mother (uncredited)
Marsha Hunt
Katie Mallory
Howard Freeman
Professor Richards
Robert Blake
Jerry
Eddie Acuff
Policeman (uncredited)
William Bishop
Reporter (uncredited)
Naomi Childers
Matron (uncredited)