Un savant fou, le Dr Niemann, s'échappe de l'asile. Aidé de son assistant, il ressuscite le conte Dracula, le loup-garou et la créature de Frankenstein, afin qu'ils l'aident à se venger de ceux qui l'ont enfermés.
Boris Karloff
Dr. Gustav Niemann
Lon Chaney Jr.
Lawrence 'Larry' Talbot (aka The Wolf Man)
J. Carrol Naish
Daniel
John Carradine
Dracula (aka Baron Latos)
Anne Gwynne
Rita Hussman
Peter Coe
Carl Hussman
Lionel Atwill
Inspector Arnz
George Zucco
Prof. Bruno Lampini
Elena Verdugo
Ilonka
Sig Ruman
Burgomeister Hussman
William Edmunds
Fejos (uncredited)
Charles Miller
Toberman (uncredited)
Philip Van Zandt
Muller (uncredited)
Julius Tannen
Hertz (uncredited)
Hans Herbert
Meier (uncredited)
Dick Dickinson
Born (uncredited)
George Lynn
Inspector Gerlach
Michael Mark
Strauss (uncredited)
Olaf Hytten
Hoffman (uncredited)
Frank Reicher
Frederick Ullman (uncredited)
Brandon Hurst
Dr. Geissler (uncredited)
Glenn Strange
Frankenstein Monster
George Blagoi
Villager (uncredited)
Paul Bradley
Edmund Cobb
Coachman (uncredited)
Gino Corrado
Man in Audience at Dracula Exhibit (uncredited)
Joe Kirk
Schwartz (uncredited)
Belle Mitchell
Urla - Gypsy Woman (uncredited)
Anton Northpole
José Portugal
Anne G. Sterling
Gypsy Girl (uncredited)
Charles Wagenheim
Jailer (uncredited)
La Chose d'un autre monde
Une soirée étrange
Ballermann 6
Le Spectre de Frankenstein
Dance of the Dead
Deux nigauds contre Frankenstein
La Vie secrète de Walter Mitty
La Malédiction des hommes-chats
La maison de Dracula
La Terreur des zombies
Le masque de Dimitrios
Nuits de cauchemar
Au cœur de la nuit
Frankenstein rencontre le loup-garou
La Malediction de la Momie
The Tell-Tale Heart
Jurassic Hunt
My Soul to Take
Hantise
Le Choc des Titans