Hash served as an Advanced Recon Commando. He belonged to a unit of clone troopers who were stranded on Pengalan IV when their LAAT/i was downed. This occurred during a large-scale retreat by the Republic.
Along with his fellow soldiers and a Republic financial officer named Joram Kithe, Hash was left to fend for himself and discover a means of escape from the desert planet. Kithe revealed that he had been given the rank of lieutenant in Republic Intelligence upon awakening, and thus assumed command.
Kithe felt uneasy about the troopers' strict adherence to protocol and tried to encourage them to be more individualistic. As part of this effort, he assigned nicknames to the troopers. Hash received his name because of the burns on his face, which he sustained in the crash.
After traveling to the closest settlement, Tur Lorkin, and infiltrating a starship hangar, Tooth and Kithe discovered that the village was actually the location of the diamond boron missile manufacturing plant, and not the factory where they were previously ambushed.
Tooth was determined to destroy the missile factory, and confronted Kithe, willing to disobey his orders in order to complete the mission. Kithe was impressed and gave in. With Kithe's help, the troopers sabotaged the factory, while Tooth commandeered a Corellian vessel to divert CIS fighters away from the starship bay, allowing Kithe and the remaining troopers to escape. Hash spearheaded the attack on the factory. As he exited a turbolift, he was killed by heavy blaster fire.