Star Wars Episode 0: The Requel
Darth "Vader" Skywalker's absentee father and mysterious plot device
Darrin Skywalker was raised to the title of Jedi Knight before he abandoned his family on Tatooine and essentially disappeared. Even the Jedi Council is unaware of his whereabouts, and he is presumed dead.
He was last seen quietly leaving the Senate complex on Coruscant.