Lozen Tolruck was a male human that served the Galactic Empire during the Galactic Civil War as a Grand Moff. In this position, he ruled as the governor of Kashyyyk, known as Imperial territory G5-623. He enslaved nearly the entire Wookiee population and forced them into labor camps, implanting inhibitor chips to prevent their escape. After the Battle of Endor, he locked down the planet and kept the Emperor's death a secret from his troops. He was killed during the liberation of Kashyyyk by Cracktooth, a former slave of his.