Sergeant was a military rank utilized by officers within the Confederacy of Independent Systems, as well as the Galactic Republic, and also the Galactic Empire which succeeded it. A number of clone troopers serving within the Grand Army of the Republic achieved the military rank of Clone Sergeant.
Crest, previously a clone trooper, held the rank of sergeant while enlisted in the Imperial Army's Stormtrooper Corps. Stormtrooper sergeants of the Stormtrooper Corps denoted their rank through the wearing of a white pauldron. While black pauldrons could also be worn by a Stormtrooper Sergeant, that specific pauldron color was also sometimes used by corporals and enlisted troopers.