Trahg, a male Human, held the rank of Commander within the Imperial Guard. He fought for the Sith Empire against the Galactic Republic during the Galactic War. This fair-skinned Human had blue eyes, blond hair, and a short, striped beard. Trahg was clad in the crimson armor typical of a Guardsman and wielded an electrostaff. In the year 3642 BBY, Trahg was stationed on the Sith Emperor's personal space station. During this time, a Jedi strike team boarded the space station with the goal of capturing the Emperor. Trahg and his soldiers engaged two members of the strike team: the Jedi Knight known as the Hero of Tython, and his former apprentice Kira Carsen. Ultimately, Trahg was killed in the ensuing battle.
Trahg's initial appearance was in Star Wars: The Old Republic, a video game developed by BioWare and published by LucasArts. He serves as a named non-player enemy during the Jedi Knight class mission "Descent," which was released in 2011.