Arb Skynxnex, a towering and slender Human, served as the muscle for Moruth Doole on the spice mines of Kessel. He wielded a uniquely customized double blaster.
Prior to the events of 0 BBY, Skynxnex was incarcerated within Kessel's notorious prison, narrowly escaping execution. Sometime during this period, he crossed paths with Han Solo during the smuggler's illicit visits to the planet. Following the Empire's defeat at the Battle of Endor in 4 ABY, Moruth Doole, an administrator at the prison, orchestrated an uprising against the resident Imperials, seizing control of both the planet and the adjacent Garrison Moon. Doole liberated numerous prisoners, including Skynxnex, who was then appointed as Doole's second-in-command due to his prior assassination of a hitman sent to eliminate Doole.
In 6 ABY, Skynxnex was at the top of Borsk Fey'lya's list of criminals to be extracted from Kessel and transported to Coruscant. This was part of a plan to draw Imperial resources away from Rogue Squadron's clandestine reconnaissance mission on Kessel. Because Doole refused to relinquish his enforcer, Zekka Thyne was prioritized instead.
Five years later, Skynxnex commanded Doole's forces in the capture of Han Solo and Chewbacca, who had made an emergency landing on Kessel after being dispatched by the New Republic as unofficial ambassadors. During their subsequent escape attempt, Skynxnex met his end at the hands of an energy spider.