In this character's first line of dialogue, he complains to his servant Spoerri
A film about this character is based on an Esperanto novel about Mr. Tot by Jan Fethke. This character sometimes causes words to appear on the screen, as when the words "Tsi-Nan-Fu" appear on a table, or when the word "Melior" appears on the screen when his nemesis drives wildly towards the Melior quarry. In this character's first line of dialogue, he complains to his servant Spoerri "You're hopped up on cocaine again!" The writings that this character makes while in an (*) insane asylum are the subject of a film in which he appears as a ghostly figure whose brain is visible underneath his hair, the sequel to a 4.5-hour silent film in which he is pursued by state prosecutor Norbert von Wenk. For 10 points, name this gambler and criminal mastermind who is the subject of      three films by Fritz Lang, including one about his "testament."
A film about this character is based on an Esperanto novel about Mr. Tot by Jan Fethke.
 Dr. Mabuse