Hovrak served as the Adjutant Advisor to Nolaa Tarkona, who led the extremist group known as the Diversity Alliance. This Shistavanen was also known for his cannibalistic tendencies, and once consumed a Human convict originating from Concord Dawn.
Hovrak harbored a strong dislike for Humans, a sentiment shared by many of his associates. In 24 ABY, when the Wookiee Lowbacca became a member of the Diversity Alliance, his four Human Jedi companions, namely Jaina Solo, Jacen Solo, Tenel Ka, and Raynar Thul, journeyed to Ryloth, the Alliance's headquarters where Lowbacca was visiting, aiming to convince him that he had made a mistake.
Regrettably, they were apprehended. Nevertheless, Lowbacca's betrayal enabled their escape into the challenging environment of Ryloth. Hovrak, along with several of his subordinates, pursued them, wearing cumbersome, heat-resistant suits to shield themselves from Ryloth's intense sunlight. Ultimately, Hovrak caught up to them, but Lusa, a former member of the Alliance, kicked him off the ramp of the departing transport, the Lightning Rod, resulting in his demise in a lake of molten lava.