Obi-Wan Kenobi was born in 57 BBY on the planet Stewjon before he was taken to the planet of Coruscant to become a Jedi. During the Clone Wars, Kenobi was a Jedi Master, a General, and the mentor to his padawan, Anakin Skywalker. When Order 66 was executed during the Battle of Utapau, Kenobi managed to survive, escaping the planet, and deciding to go into exile on the desert planet of Tatooine, where he could watch over Anakin's son, Luke Skywalker, and one day begin his training as a Jedi Knight.
In 0 BBY, Luke came to Kenobi with the rebel droids, R2-D2 and C-3PO, who were carrying the stolen Death Star plans, and went with Kenobi to the planet Alderaan, so that they could give the plans back to the Alliance to Restore the Republic. However, things didn't go according to plan, as the Death Star managed to destroy Alderaan, and Kenobi was later killed fighting Darth Vader aboard the Death Star.
After his death, Kenobi managed to come back as a force ghost, journeying to the swamp planet of Dagobah to visit Yoda. While there, Kenobi noticed that Yoda was already being visited by a strange Clone Trooper named Danson, whom Kenobi was able to sense had traveled through time and needed to get off Dagobah so that he could return back to his own timeline. Despite Yoda being reluctant to help Danson at first, Danson ensured Yoda that if he didn't help him then he would just be stuck on the swamp planet with him forever. With that in mind, Yoda decided to listen to Obi-Wan, helping Danson get off Dagobah by using the Force to repair an old Republic LAAT/i gunship that he could use to fly off world.
- Star Wars: A Clone Apart Episode V: Re(con)naissance, Part 1 (first apparance)