John Bromfield as Ricardo De Villa

Martha Vickers as Valerie Bancroft

Robert Hutton as Dr. Peter Kirk

Rosemarie Stack as Fritzie Darvel (as Rosemarie Bowe)

Eve Miller as Marsha Jordan

Max Palmer as Det. Sgt. John Fullmer

Eddie Bee as Don Darvel

Robert Bice as Dr. Tom Harrison

Pierre Watkin as Mr. Winthrop

Mitchell Kowall as Coroner

George Conrad as Bell Boy