Souske was a Human male who served as the security chief aboard the Sith Empire's Harrower-class dreadnought Oppressor, the personal warship of the Sith Lord Darth Angral during the Cold War with the Galactic Republic. A fair-skinned Human with black eyes and brown hair cut in a double stripe pattern, Souske wore black Imperial soldier armor with red markings, like many other members of the Imperial Military, and carried a vibrosword in battle. In 3643 BBY, Angral attacked the planet Tython, the homeworld of the Jedi Order, in order to use the Desolator superweapon against the world. However, a young Jedi Knight and the Padawan Kira Carsen infiltrated the Oppressor while the Desolator was charging, and Souske was killed while trying to stop the two Jedi from reaching the bridge.