Darth Sidious, var Sith Lorden der offentligt tjente som den sidste overkansler af Den Galaktiske Republik og sidenhen som første og eneste Kejser af det Galaktiske Imperiet, senere han var det sidst Dark Lord of the Sith under Darth Bane. Sidious, født som Sheev Palpatine var trænet i det Mørke Side af Kraften af Darth Plagueis. Senere, Sidious tog hans lærling, Darth Maul og dræbt hans mestre. Sidious mødte Grev Dooku af Serenno, tidligere medlem af Jedi Ordenen og hjælpt yderligere det planer af Sidious. Hemmeligt, Sidious var Senator Palpatine af Naboo.
↑Tarkin indicates that Darth Sidious was born approximately 65 years before the rise of the Galactic Empire, as depicted in Star Wars: Episode III Revenge of the Sith. Using simple math, we can deduce that Sidious was born 84 years before the Battle of Yavin, which was depicted in Star Wars Episode IV A New Hope and took place 19 years after the events of Revenge of the Sith.
