Darth Bane is a fictional character in the "Star Wars" franchise. He was created by George Lucas, within the "Star Wars" canon where he is first mentioned in the novelization of ', where Bane is an ancient Sith Lord who lived a thousand years before the films, and is known for being the originator of the "Rule of Two" that the Sith Lords follow, which establishes: "A master and an apprentice can be the only Sith in the galaxy at one time", which still remains as his backstory. Darth Bane's only on-screen appearance happens when he appears as a ghost to Jedi master Yoda in the animated series ', voiced by Mark Hamill (who portrays Luke Skywalker in the films).