Star Wars: Every Sith Who Turned To The Light Side

During the Great Galactic War, Darth Sajar served as a member of the Sith's Dark Council. When Sajar learned of a Jedi named Tol who was attempting to convert Sith to the Light Side, he was tasked with eliminating him. But after encountering the pacifist Jedi, Tol managed to convince Sajar to abandon the Dark Side and help him convert other Sith to the light.

After Sajar was imprisoned by Imperial forces, he tapped into the Dark Side once more to break free. Although he was tempted to rejoin the Sith, Sajar refused to fully embrace the Dark Side of the Force. After he was rescued by Tol's reinforcements, Sajar was brought back to the Jedi, where he continued his teachings until his dying day.