Vizam was one of several Kajain'sa'Nikto employed by Jabba the Hutt. While in Jabba's Palace, Vizam often stood in close proximity to Jabba, behind his dais. Vizam served as Jabba's weapons master, and was manning an anti-personnel turret aboard the sail barge Khetanna at the battle of the Great Pit of Carkoon when the Heroes of Yavin and Lando Calrissian rebelled against Jabba's forces, and managed to almost kill Han Solo, Chewbacca and Lando before being killed by Luke Skywalker.