Darth Sidious, born Sheev Palpatine and commonly known simply as the Emperor, was a Force-sensitive human male who became a Dark Lord of the Sith and Galactic Emperor of the Galactic Empire, ruling the galaxy throughout most of the Imperial Era. Rising to power in the Galactic Senate as the senator of Naboo, he cultivated two identities in order to accumulate political authority during the final years of the Galactic Republic, culminating in a reign that lasted from his ascension to absolute power in 19 BBY to his demise in 4 ABY. Death was not the end for Sidious, however, as the dark side of the Force was a pathway to abilities that made his return possible.
Born on the Mid Rim planet Naboo around 84 BBY during the Great Peace, Sidious was secretly trained in the ways of the Sith by Darth Plagueis. He eventually killed his Sith Master in order to train his own Sith apprentice, Darth Maul, for the Rule of Two limited their ranks to two Sith Lords at any given time. As a result of the Invasion of Naboo, a crisis orchestrated by Sidious, the Senate elected Palpatine as Supreme Chancellor. The Separatist Crisis and the Clone Wars were masterminded by Sidious and his new apprentice, Darth Tyranus, in an effort to achieve galactic dominance. Following an attempt to arrest the chancellor, the purge of the Jedi Order commenced with Sidious enacting Order 66.
With the Jedi all but extinct, Sidious installed the New Order in the Republic's place, declaring himself Galactic Emperor and bringing an end to a millennium of democracy. He had also taken another new apprentice, having lured the Jedi Knight Anakin Skywalker to the dark side, transforming him into DarthVader. Their reign was virtually unchallenged for a generation until the formation of the Alliance to Restore the Republic. During the Galactic Civil War, the Emperor sought to replace Vader with his son, Luke Skywalker. However, Sidious' plan backfired when Vader ultimately renounced the dark side to protect Luke by killing Sidious. Thus, with the Sith's destruction, the Force was brought back into balance, fulfilling Anakin's destiny as the prophesized Chosen One.
Through his Master's teachings, however, Sidious transferred his essence to an imperfect clone vessel that had been modeledon his original body. Anticipating the possibility of defeat, he created the Contingency to destroy the Galactic Empire and replace it with a new Sith Empire. His plans culminated in the destruction of the New Republic and the emergence of the First Order, the creation of Supreme Leader Snoke, who turned Ben Solo - heir to the Skywalker bloodline - to the dark side, and the establishment of the Final Order. When the Emperor announcedhis return to the galaxy in 35 ABY, the Resistance invaded the planet Exegol, Sidious' hidden stronghold in the Unknown Regions. During the battle, he discovered a dyad in the Force in the form of the bond between Solo and Rey, a Jedi apprenticesired from the Emperor's bloodline. The return of the Sith was ultimately prevented, however, when Rey called all the power of past Jedi and managed to vanquish her grandfather by turning his own power against him, destroying Sidious and his Sith Eternal cultists.
In the Legacy of Chris Thorndyke,
And he is reprised by Tim Curry in the English dub and Takashi Inagaki in the Japanese dub. (Some point in time that someone might voice him if it is a tribute.)