 Billy, Jeff, and Justice Magazine never appear in the comic book in any form.Nor do the darker elements of the comic book (the heavy use of Arthurian legend and the occult, Jessica's feelings of alienation) enter into the much brighter world of the cartoon.The origin of her powers is also altered somewhat; at the time of the series' production, the threat to her life in the comics was radiation poisoning (though her published origin has since been altered).