Killiks are an insectoid species, native to the planet Alderaan. They can often be seen in small or large groups. Every few hundred years, the would emerge from hibernation and spread out across the planet. They have been known to take in individuals, altering their brain structure, known as Joiners, their eyes becoming completely black in the process. They communicate with each other either via some sort of hissing, or through telepathy, also present in the Joiners. The Killiks were even known to have skills in weaponry usage, as they were seen with Blaster Rifles or Staffs.