Director/a
T. Hayes Hunter
DIRECTOR/A
Escritor/a
Charles Bennett
ESCRITOR/A
Billie Bristow
Denison Clift
Reparto (por orden de créditos)
Edmund Gwenn
Dr. Herman Krauss
John Loder
Inspector Yorke
Leonora Corbett
Jill
D.A. Clarke-Smith
Dr. Nicoletti
Garry Marsh
Van Der Meer
John Turnbull
Inspector Frayne
Raymond Lovell
Prefect
Douglas Stewart
Davis
