The "phantom passenger" entering Kanan Jarrus's holocron
A strange, disembodied presence known as the "phantom passenger" possessed the ability to control various technological systems, including droids. Graysom, Kanan Jarrus, and Hera Syndulla encountered this entity close to an asteroid belt. It asserted that it had once been a formidable Force-sensitive individual, stripped of its physical form by the Jedi Order and confined among the stars long before the early rebellion against the Galactic Empire began. After successfully seizing control of the droid brain of Syndulla's starship, the Ghost, and subsequently, the body of the astromech droid Chopper, the "phantom passenger" was ultimately deceived and lured into an inert holocron, where it remained captive.