Dexter's Rival

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Cartoon Summary:

There's a new kid in school by the name of Astro Nomenoff, but you can call him Mandark. He's even smarter than Dexter and demands Dexter shut down his lab. He...  (more)

Cartoon Production Information:

Hanna-Barbera's Dexter's Laboratory told the story of Dexter, a bespectacled young boy who just happened to be a genius. The title referred to the enormous laboratory Dexter built in his room,...  (more)

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