Bela LugosiDr. Lorenz
Luana WaltersPatricia Hunter, Reporter
Tris CoffinDr. Foster
Elizabeth RussellCountess Lorenz
Minerva UrecalFagah
Angelo RossittoToby
Frank MoranAngel
George EldredgeMike
Vince BarnettSandy, photographer
Kenneth HarlanEditor Keenan
Joan BarclayAlice Wentworth
Gwen KenyonPeggy Woods
Wallace FoxDirector
Harvey GatesScreenplay
Sam RobinsStory
Gerald SchnitzerStory
Jack DietzProducer
Sam KatzmanProducer