Possessing a high opinion of himself from his youth — to the point that he sometimes wondered how his parents had him — Judd's intellect earned him a place in the accelerated learning scheme in junior school. Although physically short, an encounter with a bully inspired Judd to train in hand-to-hand combat, his later victory over the bully in a rematch increasing his high opinion of himself. By the time he graduated, Judd was already convinced that Zalcassor's rulers were his intellectual inferiors, and, certain that he would never achieve his "destiny" by working up the corporate ladder, he enrolled in the military after studying past leaders despite the current period of peace. Quickly making an impression on his training instructor when he defeated the other man in a long fight, Judd passed basic training at the top of his muster, gaining rapid promotion due to the comparatively laid-back military officers currently active while subtly blackmailing upper-class soldiers serving because it was expected of them as he gathered the more capable officers to him.
Judd eventually gained the opportunity to make himself a public figure when a colony on Deltor 5, a habitable moon on a gas giant in Zalcassor's system, deposed its ruler and declared independence. With Judd having made a significant impression due to his habit of leading from the front and retaining his control in combat, he was the obvious choice to lead the army to regain control, simultaneously falsifying documents to suggest that the rebels had been more dangerous than they were. Winning the subsequent election to the post of World President by standing as the Military Party candidate, Judd set up a highly efficient anti-crime campaign that allowed him to divert more funding into the military, dismissing the multi-party system as inefficient after his second election while modifying the educational system to encourage his own views on the universe around him. With their lives slightly lacking in some freedoms but otherwise more secure than they had been, the people were increasingly willing to accept Judd, his reputation increasing when he provided himself with an enemy by manipulating the present social situation so that the rebellious elements on Gadron — a nearby planet with no strong ties to anyone else — appeared to be gaining strength while the general population suffered, beginning Judd's efforts to bring the universe together under his "Protectorate".
Perceiving his Protectorate as a means to bring justice where there had been misrule, Judd continued his expansionist efforts to subtly create problems in other worlds that he could "solve" over the next few years. Judd gained a particularly interesting "ally" when he made contact with Dexel Dynes, a tabloid journalist whose reputation was ruined during a treasure hunt where he briefly met the Fifth Doctor and Peri Brown, (PROSE: The Ultimate Treasure) Dynes being unconcerned about Judd's true motives so long as he got a good story with a charismatic central character. For Judd's part, Dynes provided Judd with an unaffiliated press officer he could use to gain insight into how others perceived him — as well as obviously shaping the public perception of the Protectorate — while also giving him valuable insight into Dynes' corner of the galaxy when the time came for him to conquer them as well. While observed by Dynes, Judd's expansion was forcibly put on hold when he attempted to "liberate" the planet of Esselven and the rulers departed before he could capture them, leaving him facing the problem of a safe containing all of the information necessary to successfully run the planet, such as computer codes and trading agreements; the safe was genetically encoded so that it would only open to members of the royal family, and would explode if subjected to any attempts to force it open.
While Judd searched for the Esselven royals — although he attempted to transfer the blame for the social situation on Esselven on to them — they retreated to a pleasure planet that had been created several years back, but their attempts to secure their position caused them to become trapped behind an inescapable force field where time passed five hundred times quicker than it did outside, computer errors causing their robots to drive them from their homes. This status quo continued until the Sixth Doctor and Peri arrived on the planet shortly before Judd found it, the two quickly forming allies among the scavengers and two artificial intelligences who had developed sentience — Oralissa, a hologram from an interactive story, and Green-8, a gardening robot — to defend the planet.
When Judd's fleet arrived after finally tracking the Esselven royals to their final destination, he had his ships launch an all-out assault on the shield, opening a brief hole in the shield that Dynes managed to slip through in his ship, Dynes gathering some information about the current situation both through his own research and an encounter with Peri, Peri exchanging her tale of the scavengers' oppression in exchange for Dynes' information on Judd. With this new information, Peri subsequently headed off to the palace after disposing of Dynes' camera, where she met up with the Doctor and Green-8. Researching Judd in the databanks, the Doctor vowed to end his reign of terror, and, aided by Green-8 and Oralissa, managed to trick Judd and Dynes into thinking that the scavengers were also holograms before he apparently departed. When Judd attempted to analyse the palace computers to learn how to duplicate the temporal shield they had created, Oralissa transmitted a false self-destruct message, forcing Judd's forces to depart while the Doctor, Peri, Green-8 and the scavengers returned (the Doctor having merely taken a short hop forward in the TARDIS).
As Judd and Dynes left the shield, the Doctor quickly manipulated the shield to bring time back into sync with the rest of the galaxy, apparently resetting Esselven Minor so that time would now flow normally for it from then on, leaving Oralissa and Green-8 to help the scavengers re-educate themselves to return home. Judd and Dynes, on the other hand, found themselves transferred over five hundred years into the future, where Dynes was shocked to learn that his reporting style was hopelessly out of date and he was only potentially useful for his unique insight into the world gone by. Judd, on the other hand, returned to Esselven only to learn that it was now ruled by the apparent descendants of the Scavengers — Oralissa serving as the nanny to the royal family while Green-8 now serving as the king's advisor — and was informed that his Protectorate had collapsed centuries ago. Although Judd protested that the Protectorate was an efficient, productive system, King Kell 3rd noted that it still allowed some authority over others, dismissing it as a cold, heartless system, and that people needed such idiosyncrasies as royal authority in their lives even if Judd had never understood that. As a result, Judd was taken away to a mental asylum to be treated for his "delusions" that he was Glavis Judd. (PROSE: Palace of the Red Sun)