Doctor Lao functions as the narrative's antagonist, portrayed as a Chinese mastermind opposing the protagonist. His physical appearance derives from Japanese actor Akira Oizumi. The character’s name directly references Charles G. Finney’s novel *The Circus of Dr. Lao*, while his conceptualization parodies the literary figure Fu Manchu. Doctor Lao employs a primary henchman, Koho—a plump Chinese man whose overtly foolish manner masks underlying competence. Koho’s visual design parodies Japanese professional wrestler Thunder Sugiyama.