Dexter’s Laboratory (1996–2003) – 4 Seasons Dexter’s Laboratory follows Dexter, a boy genius with a secret high-tech laboratory hidden behind his bedroom wall, where he conducts ambitious scientific experiments. Constantly foiled by his cheerful and destructive sister Dee Dee, Dexter’s plans often collapse into chaos despite his intelligence. Blending slapstick comedy with science fiction parody, the series is known for its sharp humor, memorable characters, and its role in defining Cartoon Netw