Gauge was a stormtrooper in the First Order, specifically a male human who held the rank of lieutenant. In the period of the First Order-Resistance War, Lieutenant Gauge was stationed on Batuu, where he commanded the stormtrooper forces. His main duty was to oversee a First Order re-education facility; this facility was used to abduct and indoctrinate Batuuans, compelling them into service for the First Order. Gauge believed that this facility enabled him to instill the First Order's principles of order – which he saw as genuine freedom – within the local inhabitants, thereby perpetuating the regime's influence. Following the abduction of Seezelslak, a bartender, a droid repair technician intervened to free him. This technician then killed Gauge and eliminated the re-education facility.