Once a heroic Jedi Knight, Darth Vader was seduced by the dark side of the Force, became a Sith Lord, and led the Empire’s eradication of the Jedi Order. He remained in service of the Emperor -- the evil Darth Sidious -- for decades, enforcing his Master’s will and seeking to crush the fledgling Rebel Alliance. But there was still good in him…

Count Dooku was a menacing Sith Lord and central figure in the Clone Wars. Once a Jedi -- trained by Yoda -- he became disillusioned with the Jedi Order and thirsted for greater power. Dooku voluntarily left the light side behind and became Darth Sidious’ dark side disciple, taking the secret name Darth Tyranus and leading the Separatist army. Dooku advanced Sidious’s secret plot to take over the galaxy, but forgot that betrayal is the nature of the Sith.

A tiny, fiery planet in the Outer Rim, Mustafar maintains an erratic orbit between two gas giants. Mustafar is rich in unique and valuable minerals which have long been mined by the Tech Union. Its lava pits and rivers make this planet a dangerous habitat; its natives have burly, tough bodies that can withstand extreme heat. The planet became the backdrop for the fateful duel between Obi-Wan Kenobi and Anakin Skywalker. After the rise of the Empire, captured Jedi were brought to the volcanic world for interrogation and execution.

The Confederacy of Independent Systems, also known as the Separatist Alliance, was a collection of star systems and corporate titans that left the Republic and fought for independence against the Republic’s clone armies and Jedi Knights. The charismatic former Jedi Count Dooku was the Alliance’s political leader, while its military power came from credits and assets donated by powerful galactic trade groups. No one suspected that the Alliance was actually a tool of Darth Sidious, who had engineered the Clone Wars as part of a Sith plot to rule the galaxy.

A harsh rocky world less than a parsec away from Tatooine, Geonosis is a ringed planet beyond the borders of the Galactic Republic. Its uninviting surface is made up of harsh, rocky desert, and the creatures that evolved on Geonosis are well equipped to survive in the brutal environment. The most advanced lifeform are the Geonosians, sentient insectoids that inhabit towering spire-hives. The Geonosians maintain large factories for the production of droids and weapons for the Separatist cause in the Clone Wars. After the Clone Wars, the Empire chose Geonosis as the construction site of the first Death Star, restricting travel to the system and sterilizing the planet’s surface.

The foreman of the Techno Union, Wat Tambor was one of the original and most fervent Separatist leaders, pledging his loyalty and his battle droid armies to Count Dooku at a pivotal meeting on Geonosis. Later in the war, Tambor was appointed emir of Ryloth. His occupation was a cruel one, in which Tambor stripped the Twi'leks of whatever valuables he could find, then bombed their villages.