Thirteen years after making this film, in which he played the villainous ruler of a fictitious country called "Lichtenburg" (an obvious combination of the real-life small countries Lichtenstein and Luxemburg), George Sanders played a sympathetic role in the musical film Call Me Madam (1953), also set in "Lichtenburg."
Louis Hayward and George Sanders played the role of Simon Templar, a.k.a. The Saint, in different films.
Released the same year as 20th Century Fox's The Mark of Zorro (1940), both films share the same plot device in which the hero masquerades as a foolish dilletante in order to catch the villain off his guard later.
Film Daily wrote: "Picture should entertain the average audience, although it has several faults. The dialogue is static in places and the situations are telegraphed. In addition, Miss Bennett and George Sanders are not overly animated in their characterizations."
Clayton Moore ("Lt. Fritz Dorner") also starred in two other films featuring him as another masked justice vigilante "The Lone Ranger" --- The Lone Ranger (1949) and The Lone Ranger and the Lost City of Gold (1958). He also appeared in 169 of 221 episodes of the long-running TV series The Lone Ranger (1949).