Reginald LeBorg Director Lon Chaney Jr. Kharis Actor John Carradine Yousef Bey Actor Ramsay Ames Amina Mansouri, Ananka Actor Robert Lowery Tom Hervey Actor Barton MacLane Inspector Walgreen Actor Claire Whitney Mrs. Ella Norman Actor George Zucco Andoheb Actor Frank Reicher Prof. Matthew Norman Actor Harry Shannon Sheriff Elwood Actor Emmett Vogan Coroner Actor Lester Sharpe Dr. Ayad Actor Oscar O'Shea Scripps Museum Watchman Actor Don Barclay Actor Dorothy Vaughan Mrs. Ada Blake (uncredited) Actor Mira McKinney Mrs. Martha Evans (uncredited) Actor Bess Flowers Scared Pedestrian (uncredited) Actor Eddy Waller Ben Evans (uncredited) Actor Griffin Jay Screenwriter Henry Sucher Screenwriter Brenda Weisberg Screenwriter Ben Pivar Producer William A. Sickner Cinematographer Saul Goodkind Film Editing John B. Goodman Art Director Abraham Grossman Art Director Russell A. Gausman Set Decoration Leigh Smith Set Decoration Vera West Costume Design