According to Star Wars Legends content, the first Sith was a former Jedi Master, Ajunta Pall, who became a so-called Dark Jedi, or “Fallen” Jedi. As the name implies, these Force-sensitives chose to practice the Dark Side, and rejected the Light Side of the Force.
The strongest among the Exiles, Ajunta Pall, became the first to hold the title Dark Lord of the Sith. His contemporaries, such as Karness Muur and XoXaan, became Sith Lords. The human Dark Jedi interbred with the Sith species, who also had an affinity for the Dark Side. They would become the original Sith Empire.
Korriban, later known as Moraband, was settled by the Sith following their schism with the Jedi Order. Formed around 5000 BBY, the Sith were the ancient enemies of the Jedi Order who shared their name with a red-skinned species.
The first known users of the dark side were the ancient Rakata, an alien species that conquered a large portion of the galaxy around 30,000 BBY. These aliens were able to harness the dark side to create engineering feats unheard of in their time, such as the hyperdrive and the Star Forge.
In the Star Wars Legends continuity, the founders of the Jedi Order were Jedi Masters Cala Brin, Garon Jard, Rajivari, and Ters Sendon.
Biography. Legend had it that Yoda—a Jedi who became Grand Master—was trained by N'Kata Del Gormo. A Force-sensitive Hysalrian, N'Kata Del Gormo was trained in the ways of the Force and achieved the rank of Master within the Jedi Order.
Jedi Master Yoda is the most powerful of them all. This should come as no surprise, as he was the head of the Jedi Order in the prequels and was revered for his abilities during the original trilogy. Yoda's power is unmatched and was a real threat to Darth Vader and the Imperials.
There are dozens of canon Jedi in the Star Wars universe. Opposing them stand the canonical servants of the Dark Side of the Force: The Sith. While many Sith Lords in Star Wars are mentioned, only six are detailed in canon: Bane, Plagueis, Sidious, Maul, Tyranus, and Vader.
By far the most iconic Sith Lord and warrior is Darth Vader (or Anakin Skywalker). He, through his extensive injuries and being trapped in a technologically-advanced suit to survive, stayed strong with the force.
1 Darth Sidious
There has been no Sith, as powerful, meticulous, nor as evil as the Emperor himself, Darth Sidious. As previously mentioned, Sidious trained in the Dark Side by Darth Plagueis before Sidious killed Plagueis in his sleep, making Sidious a Sith Master.
Even though Kylo Ren uses a red lightsaber, harnesses the dark side of the Force, and wears a cape, he is not a Sith. Because of that, he can never hold the title of Darth. Instead, he was just a chaotic mess of the dark side (until he eventually found his way back to the light).
A Sith Lord with the ability to cheat death and create life, Plagueis is the mentor of Sheev Palpatine / Darth Sidious, who, in accordance to the Sith's Rule of Two, eventually betrays Plagueis by murdering him in his sleep, taking his place as Sith Master.
Early life. Darth Plagueis was a legendary Dark Lord of the Sith trained by the Sith Master Darth Tenebrous. At some point during his life, Plagueis acquired the protocol droid 11-4D.
After the Sith were decimated by the Jedi Knights of a thousand years ago, Bane enacted the Sith rule of two: there would be only two active Sith at one time -- a Dark Lord to embody the power, and an apprentice to crave it.
Most likely not commonly known by many casual Star Wars is that, at least in Legends, the Sith had their own “chosen one” prophecy and that the central figure in it was believed to have been the Sith Lord, Darth Bane.
The term "Sith Lord" generally encompassed members of both sexes, although some female Sith such as Lumiya, Tahiri Veila, Olaris Rhea, and Vestara Khai were styled Sith Lady. Originally, "Sith Lord" referred to a high-ranking member of the Sith Order's society.
Darth Sidious, also known as the Emperor and Supreme Chancellor Palpatine, is not just the evilest Sith in Star Wars (arguably in both canon and Legends) but the evilest villain overall, deemed so thanks to his irredeemable actions throughout the Skywalker saga and surrounding content.
In Star Wars Legends and Canon, Galen Marek (Starkiller) is the only Jedi (other than Obi-Wan Kenobi) to put a beat down on Darth Vader/Anakin Skywalker.
A Sith apprentice was a Force-sensitive individual trained by a Sith Master to use the dark side of the Force. The age at which a Sith apprentice began their training varied.
By the time of the One Sith, the "Darth" title was reserved only for those who proved their power and their unquestioning loyalty to Darth Krayt.
Anakin Skywalker is the son of Shmi Skywalker, born without a father through the Force. He is the secret husband of Padmé Amidala, the father of Luke Skywalker and Leia Organa, the father-in-law of Han Solo, and the maternal grandfather of Ben Solo.
DARK SIDE FRIDAY - Did you know Palpatine feared Qui-Gon Jinn? Palpatine was immensely powerful and he could see the future which made him very confident about pretty much anyone who stood against him. So why Qui-Gon Jinn?
Obi-Wan Kenobi
Through it all, Obi-Wan reveals himself to be one of the very best examples of what a Jedi Knight should be: selfless, kind, and willing to do whatever it takes to protect those in need.