 Ray MillandHarry Flexner | Harry Flexner |
 Elsa LanchesterJulia Hawthorn | Julia Hawthorn |
 Maurice EvansInspector Daniels | Inspector Daniels |
 John CarradineClaude Dupree | Claude Dupree |
 Lisa LuMadame Yang | Madame Yang |
 Broderick CrawfordAmos Burns | Amos Burns |
| MMark EdwardsSergeant Michael Hawks | Sergeant Michael Hawks |
 Louis HaywardTim Fowley | Tim Fowley |
 Patric KnowlesMr. Southcott | Mr. Southcott |
 Steven MarloKarkov | Karkov |
| NNicole ShelbyMargaret Collins | Margaret Collins |
 Shani WallisLaurie Mell | Laurie Mell |
 Ben WrightFirst Constable | First Constable |
 Mathilda CalnanFirst Charwoman | First Charwoman |
 Peggy StewartSecond Charwoman | Second Charwoman |
| LLeslie ThompsonConstable Parker | Constable Parker |
| DDon HerbertJack the Ripper Wax Figure | Jack the Ripper Wax Figure |
| JJudy WetmoreLizzie Borden Wax Figure | Lizzie Borden Wax Figure |
| JJo WilliamsonMrs. Borden Wax Figure | Mrs. Borden Wax Figure |
| GGeorge FarinaBluebeard Wax Figure | Bluebeard Wax Figure |
| DDiane WahrmanGirl in Red Wax Figure | Girl in Red Wax Figure |
| RRosa HuertaLucretia Borgia Wax Figure | Lucretia Borgia Wax Figure |
| BBen BrownAttila the Hun Wax Figure | Attila the Hun Wax Figure |
| RRickie WeirMarie Antoinette Wax Figure | Marie Antoinette Wax Figure |
| PPaul WilsonIvan the Terrible Wax Figure | Ivan the Terrible Wax Figure |
| RRalph CunninghamWillie Grossman Wax Figure | Willie Grossman Wax Figure |
| DDon WilliamsonConstable Henry Bolt Wax Figure | Constable Henry Bolt Wax Figure |
| EEvelyn ReynoldsFlower Woman Wax Figure | Flower Woman Wax Figure |
 Sandy HelbergNewsboy (Uncredited) | Newsboy (Uncredited) |
 Max WagnerMusic Hall Drunk (Uncredited) | Music Hall Drunk (Uncredited) |
