Red Five served as the callsign designated to the fifth pilot in Red Squadron.
During the battle above Scarif, Pedrin Gaul of the Massassi Group utilized the callsign; however, Gaul's death in combat resulted in the vacancy of this designation. Subsequently, Luke Skywalker adopted it upon his integration into the Massassi Group just prior to the Battle of Yavin, employing it not only in that pivotal engagement but also in numerous follow-on operations. Following Skywalker's successful destruction of the initial Death Star, the callsign became closely associated with the specific X-wing fighter he piloted. The Battle of Endor saw Grizz Frix also using the callsign.