Trahg was a Human male who served as a Commander in the Imperial Guard during the Galactic War between the Sith Empire and the Galactic Republic. A fair-skinned Human with blue eyes, blond hair, and a small striped beard, Trahg wore the crimson armor of a Guardsman and carried an electrostaff. In 3642 BBY, Trahg was stationed aboard the personal space station of the Sith Emperor when the space station was boarded by a strike team of Jedi with the purpose of capturing the Emperor. Trahg and his men attempted to defeat two members of the strike team, the Jedi Knight known as the Hero of Tython and the Hero's former apprentice Kira Carsen, but he was killed in the fighting.