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Jhonen Vasquez
Jhonen C. Vasquez (; born September 1, 1974) is an American cartoonist, animator, screenwriter, music video director, and voice actor. He is best known for creating the comic book Johnny the Homicidal Maniac—along with its spin-off comics Squee!, Fillerbunny, and I Feel Sick—and the Nickelodeon animated series Invader Zim.
Source: Wikipedia