Cabuck Junior was the offspring of Cabuck, who was an alien and the bartender and proprietor of the Lomi Usqi Noodle Shop located on the world of Ueda; Cabuck Junior was also a child, and occasionally Cabuck would bring them to the shop to assist. In the year 132 BBY, the assassin known as Mae-ho Aniseya launched an attack within the noodle shop, killing the Jedi Master Indara, an event witnessed by Cabuck from his position behind the bar. After the Jedi's death, Aniseya approached Cabuck, preparing to hurl a knife at him, yet she stopped when she heard Cabuck Junior's soft cries as the child gripped their parent's leg.
The young one pressed their face into their parent's leg, and Cabuck, the bartender, placed his hand gently on the head of Cabuck Junior. Subsequently, the assassin departed without causing harm to either of them, and Cabuck turned his attention to comforting his child. During this event, Cabuck Junior was dressed in a gray robe complemented by a brown bandolier, and they held a blue toy tightly. Their physical appearance included brown skin and green eyes.
Cabuck Junior made their debut in "Lost / Found," the initial episode of the The Acolyte television series, which was broadcast on June 4, 2024 via the Disney+ streaming platform. The character's design was conceived by senior animatronic designer Adrian Parish, who then closely collaborated with junior animatronic designer Matthew Hart to bring the character to life. The character's identity was first revealed in an entry dedicated to Cabuck within the StarWars.com Databank, which was published by July 20, 2024.