Paxin was a member of the Rebel Alliance, functioning as an agent on the planet Vorzyd V, known as the "Gambler's World," during the time of the Galactic Civil War. During 1 ABY, Imperials took Paxin prisoner, along with key Rebel figures Luke Skywalker and Leia Organa, as well as a fellow Rebel agent of the Selonian species named Falud. Skywalker's pair of droids, specifically C-3PO and R2-D2, managed to get inside the ship where the Rebels were imprisoned and released them, which gave them the opportunity to overwhelm the stormtrooper guards and attempt an escape by force. While Falud died during this escape, Paxin was successful in fleeing the ship alongside Skywalker and Organa. Later, Paxin participated in a meeting with Skywalker, Organa, and Sanglui, the leader of the local Rebel cell, where they randomly selected who would meet with a high-ranking member of the Vorzyd V government who was secretly aiding the Rebellion.
The only appearance of Paxin in the Star Wars Legends timeline was in Gambler's World, which was a comic strip storyline created by Russ Manning, who both wrote and drew it; it was published in 1979.