Siri Tachi was a female Human Jedi Knight, apprentice of Adi Gallia and Master to Ferus Olin before he left the Jedi Order. She was a talented pilot who participated in the First Battle of Geonosis, fighting alongside Master Gallia guarding the Galactic Republic transports in space above the planet. She was one of Obi-Wan Kenobi's closest friends, and at one point they were romantically involved. She would also in time come to consider Anakin Skywalker a close friend.