The Imperial Ninety-Seventh Stormtrooper Legion was a Imperial stormtrooper legion active during the Galactic Civil War. The legion was assigned to Sullust, where they maintained order against the Sullustan resistance and the Cobalt Laborers' Reformation Front. SP-475 was a member under the command of SP-113, one of the original clone troopers. During the Siege of Inyusu Tor, the legion took heavy casualties against the Rebel Alliance's Twilight Company.