Obi Wan Kenobi on Tatooine after the events of Episode III. Almost all of the Jedi were killed by Order 66, and most of the survivors were killed in the Great Jedi Purge that followed. The Jedi Order survived through acts of surviving Jedi, such as Obi-Wan Kenobi and Yoda, teaching Luke Skywalker the ways of the Force.
Star Wars RPG Villain Idea. Single Yellow Lightsaber. Morally Ambiguous instead of evil. Hooded. Saving his planetary system, wife and child means the destruction of a whole galactic spiral arm. PCs don't find out his motivations until he's unredeemable, or his plan to chain reaction stars in hyperspace has taken a few worlds. Maybe his child gives the PCs the plot device needed to bring him down to their level.