Chata Hyoki, an aquatic Selkath male, hailed from the planet Manaan. In the era of the Clone Wars, Hyoki and Robonino, a fellow bounty hunter, were employed by Count Dooku. Their mission was to sway senators' votes on a Senate bill through intimidation. Subsequently, Dooku tasked them with the assassination of Padmé Amidala, a mission that ended in failure. The pair, Hyoki and Robonino, faced arrest following their assault on Bail Organa at the Senate Building.