Darth Sidious (also known as Chancellor Palpatine or The Emperor) is the main antagonist of the Star Wars Saga. He is a Sith Lord, and possibly the most powerful to ever live. He killed many Jedi and was the mind behind the Great Jedi Purge.
He appeared more in the Prequel Trilogy than the Original Trilogy.
During the Phantom Menace, Darth Sidious orders the Naboo Invasion and trains the Sith Apprentice, Darth Maul. As Palpatine, he was a member of the Senate and he was voted Chancellor of the Senate at the end of the movie when Chancellor Vellorum was removed.
Attack of the ClonesEdit
Darth Sidious trained Count Dooku, now Darth Tyrannus. He also, as Palpatine, allows the creation of 'an army of the republic', also known as the Clone Army, which, unbeknownst to all, he secretly controls. He also gained emergency powers till the war ends.
Revenge of the SithEdit
Palpatine is 'kidnapped' by Darth Tyrannus (in an attempt to kill Obi-wan Kenobi and convince Anakin to join the Sith) but he tricks Dooku by making Anakin kill him. Later, he reveals his secret identity of Darth Sidious to Anakin. Hearin this, Anakin reports the news to Jedi Master Mace Windu.
Windu confronts Palpatine along with 3 other Jedi, but the Sith Lord easily disposes off the others, leaving Windu alone to face him. Windu disarms Sidious and reflects his Force Lightning back at him, disfiguring his face. Windu prepares to kill Palpatine when Anakin arrives and cuts off Windu's lightsaber hand, allowing Sidious to kill him. Anakin pledges himself to Darth Sidious as Darth Vader .
Palpatine executes Order 66, at which the Clone Army attacks and kills most of the Jedi. Obi-Wan survives, and along with Master Yoda, decides to confront the two Sith Lords (Sidious & Vader).
Skirmish in the SenateEditYoda confronts Darth Sidious in the Senate Building while Obi-Wan confronts Darth Vader on Mustafar. Yoda and the Sith Lord fight fiercely, and Palpatine even disarms Yoda and strikes him with Force Lightning, but Yoda reflects in with his bare hands, but is knocked off by an explosion this creates and escapes. Meanwhile, Palpatine heads to Mustafar, where he sees Darth Vader seriously injured by Kenobi. Darth Vader is given a life supporting suit by Sidious, and the Sith Rule begins.
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