Dexter is the title character and protagonist of the Genndy Tartakovsky animated series Dexter's Laboratory, originally run on Cartoon Network from 1996-2003. He was originally voiced by Christine Cavanaugh, and later by Candi Milo. Dexter is a boy genius who maintains a lab behind his bookshelf, in which he invents strange chemicals, robots (many of whom eventually band together and turn on him), rockets, and a giant fighting robot (reminiscent of machines from the Gundam anime) which he pilots and uses to fight his arch-nemesis Mandark, who owns a similar machine. Most of his notable inventions are destroyed by his sister Dee Dee, whose favorite pastime is playing with his inventions. His birthday is unknown, although it was revealed in the episode "A Hard Day's Day" that Dexter is a Capricorn and in another episode, that he was in the 5th Grade. It is also learned the he skips two grades which explains why he is in the same grade as his older sister Dee Dee. Despite being American, and both his parents speaking English with an American accent, Dexter speaks with a West- or South Slavic accent.