Killun 71 is a moon displaying a green appearance from space due to an omnipresent layer of mist in its atmosphere. Killun 71's terrain consists of jagged masses that make colonization difficult, though the Imperial Security Bureau has established a base, Killun Station, on one of its rocky protrusions.
Chopper was the resident droid of the Ghost, assisting the crew in everything from ship maintenance to combat -- even though he didn't always want to. After many years of repairs and patch jobs, Chopper had a beat-up, worn look that matched his sometimes cranky personality. Aesthetics aside, he was an essential part of this small rebel team, and ultimately, was loyal and heroic.
Proud and honorable, AP-5 was a droid that served as a navigator for the Republic military during the Clone Wars. Following the formation of the Empire, however, he was reassigned to inventory. While the position did not take advantage of his gifts, he performed his duties without complaint -- despite threats and disrespect from his Imperial commanders. It was only after a fateful meeting with the rebel astromech Chopper that AP-5 came to see he did not have to serve the Empire. He helped Chopper escape capture and defected to the rebels, helping find a safe haven away from Imperial forces.
Controller LT-319, outfitted with Lobot-tech headgear, was the lead intelligence officer aboard the Imperial listener ship near Killun Station. Ambitious and scheming, Controller LT-319 was eager to impress Grand Admiral Thrawn, and reprogrammed Chopper in an effort to discover the location of the rebel base. The plan would backfire, however, when Hera Syndulla restored her droid's original programming and reversed the feed, destroying the listener ship and Controller LT-319 in the process.