Mato Julstan was a Human captain in the Imperial Army during the Galactic Civil War, serving during the Nishr campaign under General Vin Kollis. He led a column of AT-ATs during the final attack on the Nishr capitol city, but when Kollis and his force was getting pushed back, he refused to allow Lieutenant Kaijin Harrak, the pilot of the lead walker, to help. He did anyway, and the battle was a victory for the Empire as a result.