Mon Julpa, whose pronunciation is represented as /mɑn 'dʒul-pʌ/, held the position of rightful Crown Prince and subsequently King of Tammuz-an during the era of the Galactic Empire.
Zatec-Cha, a vizier from Tammuz-an, subjected Mon to brainwashing, depriving him of his authority and memories. He then instructed his operatives to disguise Mon as an android. Subsequently, Mon was sold to Jann Tosh, a young miner residing on Tyne's Horky, who made the discovery that Mon was, in fact, a sentient being. Despite the initial reservations of his uncle Gundy, Mon devoted himself to diligent work in the mines. They gave him the nickname "Kez-Iban," a term from the Bocce language signifying "he who has returned from death."
Sollag, hailing from Tammuz-an, embarked on a quest to locate his prince. Eventually, he succeeded in finding him and returning his royal scepter. Mon Julpa's memories were restored, leading him to return to Tammuz-an alongside Tosh and his droids with the purpose of claiming his rightful throne. Following numerous adventures, he presented the scepter to the Keeper of the Tower during the first sun of the equinox, thereby becoming the King of Tammuz-an.
After removing Zatec-Cha from power, Julpa initiated endeavors to reconcile the two conflicting cultures present on Tammuz-an. He reached out to Lord Toda of the Outer Territories with the aim of establishing a peace treaty. When the pirate Gir Kybo Ren-Cha abducted Toda's daughter, Princess Gerin, demanding ransom and taking her to one of the moons of Bogden, Toda and Julpa joined forces to rescue her. Julpa and Gerin developed a romantic relationship, while Julpa and Toda forged a friendship, ultimately unifying Tammuz-an.
Mon Julpa, under the alias Kez Iban, was introduced as an action figure in 1985 as a component of Kenner's Star Wars Droids product line. These action figures possessed size compatibility with the other Kenner Star Wars action figures, although their design characteristics indicated a distinct toy series. A subsequent figure identified as Mon Julpa was prototyped and nearly reached the production phase, but it was ultimately never released.
The voice of Mon Julpa was provided by Chris Wiggins.