Hikaru Sulu was a Human Allied officer. He served first as the staff physicist and the majority of his duty as Chief Helmsman on the USS Enterprise and its successor. On a few occasions, Sulu was in temporary command when Admiral Gial Ackbar during the Great Battle in Endor. He also served as Helmsman aboard the AJN Iteria MC80a Star Cruiser. He was later promoted to commanding officer of the USS Excelsior, and was widely regarded as a tactical genius, as well as an expert on Jaffan culture and society.