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Famously described on his debut as a "goofy clown," and the Harlequin of Justice, Jack-in-the-Box has become one of the most easily identifiable and popular heroes of Astro City. Almost as famous for his love of wordplay during a battle as for the battles themselves, Jack has attracted considerable attention from the media and the public, not all of it positive. Since the start of his career in 1964, he has been the subject of debates about his background, motivations and alliances.