Boo

Mae Clarke as Elizabeth (edited from "Frankenstein") Lawrence Grant as Crosby (edited from "The Cat Creeps") Gustav von Wangenheim as Hutter (edited from "Nosferatu") Morton Lowry as Man Reading "Dracula" Raymond Hackett as Paul (edited from "The Cat Creeps") Elizabeth Patterson as Susan (edited from "The Cat Creeps") Max Schreck as Dracula-Nosferatu (edited from "Nosferatu") Helen Twelvetrees as Annabelle West (edited from "The Cat Creeps") Edward Van Sloan as Dr. Waldman (edited from "Frankenstein") Boris Karloff as Frankenstein's Monster (edited from "Frankenstein")