Hexx served the Galactic Empire as a clone stormtrooper and was stationed on the planet of Barton IV. His service concluded in 18 BBY after more than twelve months at the Imperial Depot, where he met his end in combat against insurgents.
Around 19 BBY, Hexx, along with his squad led by Clone Commander Mayday, was tasked with guarding an Imperial supply depot located on Barton IV. Over the course of more than a year stationed at this post, the majority of Mayday's squad perished fighting local insurgents, leaving only Hexx, Veetch, and Mayday alive when clone commando CT-9904 "Crosshair" and Imperial Lieutenant Nolan arrived to reinforce the squad around 18 BBY.
During a blizzard, while Crosshair and Mayday were inspecting the depot's surroundings, the local insurgents launched another assault on the Imperial depot. In his haste to defend the depot, Hexx was killed during this attack. Subsequently, Mayday recovered Hexx's helmet and displayed it within the Imperial depot alongside the helmets of his other fallen comrades.
Hexx, being a clone derived from the bounty hunter Jango Fett, was a human male with a height of 1.83 meters.
As a clone stormtrooper, standard-issue Phase II clone trooper armor equipped Hexx, along with a DC-15A blaster carbine as his weapon. After enduring over a year without proper upkeep, Hexx's armor was damaged, unkempt, and secured with strips of cloth.