Casts
Bela Lugosi
as Rolf
Lionel Atwill
as Dr. King
Leif Erickson
as Laurie
Irene Hervey
as Dr. Lynne Harper
Ralph Morgan
as Kurt Ingston
Don Porter
as Dick Baldwin
Nils Asther
as Agor Singh
Fay Helm
as Margaret Ingston
Frank Reicher
as Dr. Timmons
Doris Lloyd
as Sarah Judd
