Mandark

Mandark, whose real name is Dexter, is a fictional character from the animated television series "Dexter’s Laboratory." He is Dexter’s primary rival, a highly intelligent but often scheming boy who repeatedly attempts to outshine or sabotage Dexter’s scientific achievements. Mandark is characterized by his distinctive appearance, including a large, bulbous head, black hair, and glasses. Despite his intelligence, his arrogance and competitive nature often lead to comic conflicts. He serves as a humorous foil to Dexter, highlighting themes of rivalry, ingenuity, and the complexities of friendship.