Bail Antilles was a Human male from the planet Alderaan. Born a prince in the influential House of Antilles, Antilles served as the senator of the Alderaan sector during the years leading up to the Invasion of Naboo. Campaigning to combat corruption in the Senate, the highest legislative body of the Galactic Republic, Antilles ascended to the position of chairman of the Internal Activities Committee. He was also leader of one of the two main factions of the Senate, the Core faction, which was mostly opposed by the Rim faction led by his colleague Ainlee Teem of the planet Malastare.