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In page Mad scientist:

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Fritz Lang's movie Metropolis (1927) brought the archetypical mad scientist to the screen in the form of Rotwang, the evil genius whose machines had originally given life to the dystopian city of the title.[1] Rotwang's laboratory influenced many subsequent movie sets with its electrical arcs, bubbling apparatus, and bizarrely complicated arrays of dials and controls. Portrayed by actor Rudolf Klein-Rogge, Rotwang himself is the prototypically conflicted mad scientist; though he is master of almost mystical scientific power, he remains a slave to his own desires for power and revenge.[citation needed]