Young Gargunza was the nephew of the mad scientist Dr. Emil Gargunza, and like his uncle was a perpetual thorn in the sides of the superheroes Marvelman and Young Marvelman. He was also briefly allied with the alien criminal Young Nastyman although they quickly turned on each other. Like his uncle, Young Gargunza was a scientific genius but totally ruthless and lacking in any redeeming features whatsoever. Fortunately, he was also frequently guilty of underestimating the intelligence of others, resulting in such embarrassing defeats as being transformed into a chimpanzee when he tried to steal Young Marvelman's powers.
Young Gargunza was loosely based on the American character Sivana Jnr., in the same way that his uncle was based on Dr. Sivana, arch foe of the original Captain Marvel