There are quite a few Star Wars stories about Jedi who turned to the dark side. If you’re a fan, you’re probably very familiar with some of these, such as Anakin Skywalker’s turn to Darth Vader, or the fall of Quinlan Vos, a Jedi who went rogue in order to defeat Count Dooku and end the Clone Wars. Despite the fact that their number one role is serving as peacekeepers of the galaxy, the dark side’s influence had caused many former Jedis to plunge the galaxy into darkness.
Many of the Jedi here sought power, and used the dark side to attain it, while other fallen heroes were pushed towards evil through personal tragedy. Whatever the case, we're here to examine the Jedi who turned to evil, and abandoned everything they used to believe in. Some of these Jedi even became Sith, the sworn enemy of their Order. Prepare for some of the most tragic stories from a galaxy far, far away...
Anakin Skywalker is easily the most infamous Jedi to ever turn to the dark side. Jedi Knight Qui-Gon Jinn discovered young Anakin on the desert planet of Tatooine, and believed the boy was the Chosen One who would finally bring balance to the Force. But there was too much darkness in Anakin, and the boy began training as a Jedi at a much older age than most Padawan learners. He was known to be capricious and reckless, and often disobeyed his master, Obi-Wan Kenobi.
His emotional attachment to his mother, Shmi Skywalker, and his secret wife, Padme Amidala, eventually led him to the dark side. He slaughtered the village of Sand People who kidnapped and tortured his mother to death, and joined the Sith in order to save Padme, whom he believed would die during childbirth. In trying to save those he loved, Anakin only found more pain and eventually became the feared Darth Vader.
Revan was a controversial Jedi Knight who lived thousands of years before the prequel trilogy. He was the leader of a faction within the Order called the Revanchists, a group of Jedi Knights who decided to fight for the Republic during the Mandalorian Wars. The Mandalorians were a fierce enemy, devastating planets throughout the galaxy, and Revan had grown frustrated with the Order’s unwillingness to get involved in the fight.
While Revan eventually defeated the Mandalorian forces and was hailed as a hero of the Republic, all of this fighting eventually led to his fall to the dark side. After the defeat of Mandalore the Ultimate, the Mandalorian leader, Revan traveled to the Unknown Regions of space to investigate a possible Sith connection to the Mandalorian threat. It was in the farthest edges of space he encountered a resurgent Sith Empire.
When the Jedi hero of the Republic returned to known space, it was as a new Dark Lord of the Sith, ready to wage war against his former allies.
Jacen Solo was the son of Han and Leia. He was a great Jedi hero, and fought to protect the New Republic on several occasions. Most notably, he battled in the Yuuzhan Vong War, during which he was captured and tortured into submitting to the dark side before reconciling with the light side. As he grew older, Jacen became more determined to lead an increasingly fractured galaxy into an era of peace.After experiencing a vision of a tyrant who would take over the galaxy, and foreseeing the death of Luke Skywalker, Jacen joined forces with the Dark Lady Lumiya, the resurgent leader of the Sith, and became Darth Caedus. As a Sith Lord, Jacen took control of the Galactic Alliance, tortured Luke’s son, and killed his aunt. Jacen became the evil he had once tried to prevent. In the tragic climax of the Legacy of the Force book series, Jaina, Jacen’s twin sister, is forced to kill her brother in order to save the galaxy from his reign of terror.
Not much is known about Ben Solo’s fall to the dark side. We do know that from a very early age, Luke and Leia both sensed a lot of Darth Vader in him. When Luke decided to train a new group of Jedi, he took Ben under his wing in the hopes that the young Solo would embrace the light side. But the pull towards the dark was too strong. Supreme Leader Snoke of the First Order finally corrupted Ben, and turned him into an agent of evil.
Ben became the masked Kylo Ren, leader of Snoke’s Force-sensitive Knights of Ren, and committed atrocities across the galaxy, including the murder of an entire village on Jakku, the destruction of the Hosnian System, and the murder of his father, Han Solo. At this point, Kylo seems beyond redemption.