- Country: USA
- Genres: Crime, Drama, Horror
- Release: 1931-03-02
- Director: George B. Seitz
- Writers: Harold McGrath , Florence Ryerson
- Language: English
- Stars: Warner Oland , June Collyer , Lloyd Hughes , Clara Blandick (1876–1962) , Hale Hamilton , Wallace MacDonald , George Fawcett , Florence Lake , Mischa Auer (1905–1967) , Ernest Hilliard
- Runtime: 75 min
- Awards: N/A
- AKA: O Dr. Karloy (Brazil) , The Drums of Jeopardy (United States of America) , The Drums of Jeopardy , The Drums of Jeopardy (United Kingdom) , Dr. Karlov (Brazil) , O Dr. Karlov (Brazil) , To margaritari tou thanatou (Greece) , Το μαργαριτάρι του θανάτου (Greece) , Mark of Terror , Docteur Karlov (France, French Republic) , La marca del terror (Mexico)
- Plot: A mad doctor is determined to take revenge on the family he believes is responsible for his daughter's death.
- IMDB:tt0021820
The Drums of Jeopardy Cast · · · ALL
George B. Seitz
Director
Warner Oland
Dr. Boris Karlov
June Collyer
Kitty Conover
Lloyd Hughes
Prince Nicholas Petroff
Clara Blandick
(1876–1962)
Aunt Abbie
Hale Hamilton
Martin Kent
Wallace MacDonald
Prince Gregor Petroff
George Fawcett
General Petroff
Florence Lake
Anya Karlov
Mischa Auer
(1905–1967)
Peter
Ernest Hilliard
Prince Ivan Petroff