The Emperor of the Galaxy, leader of the Galactic Empire and Lord of the Sith. Emperor Palpatine, otherwise known as Darth Sidious, is the main antagonist of the Star Wars saga who hid as a Republic senator and worked to gain power, eventually making him the Supreme Chancellor of the Republic. Once enough power was acquired, he reordered the Republic into the Galactic Empire, and worked to make the Jedi extinct. At the height of his power, he was killed by his own apprentice, Darth Vader, who threw him down a deep pit in order to save his son, whom the Emperor was in the process of killing.

In other words, this guy is the sh*t.