Dexter's Laboratory

Dexter's Laboratory is an American comic science fiction animated children's television series created by Genndy Tartakovsky for Cartoon Network. The series follows Dexter, a boy-genius with a secret laboratory filled with his collection of inventions. He constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her out, as well as his arch-rival and neighbor, Mandark. The series' first two seasons contain additional segments: Dial M for Monkey, which focuses on Dexter's pet lab monkey-turned-superhero, and The Justice Friends, about a trio of superheroes who share an apartment.