Charles Barton Director Bud Abbott Casey Edwards Actor Lou Costello Freddie Phillips Actor Boris Karloff Swami Talpur Actor Lenore Aubert Angela Gordon Actor Gar Moore Jeff Wilson Actor Donna Martell Betty Crandall Actor Alan Mowbray Melton Actor James Flavin Insp. Wellman Actor Roland Winters T. Hanley Brooks Actor Nicholas Joy Amos Strickland Actor Howard Snyder Screenwriter Hugh Wedlock Jr. Screenwriter John Grant Screenwriter Robert Arthur Producer Charles Van Enger Cinematographer Edward Curtiss Film Editing Milton Schwarzwald Original Music Bernard Herzbrun Art Director Richard H. Riedel Art Director Oliver Emert Set Decoration Russell A. Gausman Set Decoration Rosemary Odell Costume Design