Mojo Jojo (voiced by Roger L. Jackson) is a Supervillain, and main antagonist in the Cartoon Network animated series The Powerpuff Girls, its anime spin-off, Demashita! Powerpuff Girls Z and the animated series with the crossover from The Amazing World of Gumball. He is a notorious genius chimpanzee mad scientist, whose main goal is to destroy the Powerpuff Girls, crush Townsville (or, in Demashita! Powerpuff Girls Z, Tokyo City), include to Elmore and conquer the world, in that order. In order to do this, he spends much of his time plotting and inventing new weapons or technology. This normally comes in the shape of giant robots or large energy weapons. He is the archenemy of the girls and the creator of the Rowdyruff Boys. Somehow, he has high-vocabulary use and long-lasting sentences. He was the Powerpuff girls' first major villan that they ever fought, as explained in The Powerpuff Girls Movie, and is arguably their archenemy because he lied to them and used the powerpuff girls powers to build his lab on the volcano in Townsville and made them embarresed in front of the professer but the powerpuff girls fought against the monkey madness and mojo jojo when he was 45 times his size!, Also he has crush on Miss Simian as his future wife, Even he hates Principal Brown, who is getting in his way of getting closed to Miss Simian.