Mysterious Doctor Satan

Mysterious Doctor Satan is a 1940 film serial named after it's primary antagonist, Doctor Satan. Opposing Doctor Satan is a masked avenger known as The Copperhead; whose secret identity is Bob Wayne, a man seeking justice upon the doctor for the death of Wayne's stepfather. The fifteen chapter serial charts the conflict between the two as Copperhead persues Doctor Satan, while the latter furthers his aims of world domination.

Trivia

 * In Star Trek Voyager crewmen Tom Paris recreates Satan's Robot for use in his The Adventures of Captain Proton Holodeck program.