Darth Nihilus

Darth Nihilus was a Force-sensitive Human male who lived during the Dark Wars. He lost everything during the Mandalorian Wars, surviving the activation of the Mass Shadow Generator at the Battle of Malachor V. The experience of the mass shadows made him "hunger" for Force energy, and the affliction began to ravage his body. In his pain he became a wound in the Force and was found by a seeker of such things, Darth Traya, who told him that she could teach him to feed his hunger. He accepted her offer and came under her apprenticeship at her Dark Jedi academy, choosing to wield the dark side of the Force as his weapon, and over time became one of three concurrent Dark Lords of the Sith.

Together, the three formed a triumvirate with Traya at its head and her other apprentice, Darth Sion, as the third. The trio chose individual names for themselves, and Nihilus became the Lord of Hunger. The apprentices grew in strength during their training and eventually overpowered their Master. Sion beat Traya, with Nihilus right behind him, before they exiled her and the two combined their powers to sever her ties to the Force. Nihilus's affliction developed to the point where he was forced to call upon his dark powers and encase his spirit within his mask and armor to stay alive. Nihilus and Sion then became the main perpetrators of the First Jedi Purge, causing the virtual extinction of the Jedi Order.

Darth Nihilus was responsible for the Devastation of Katarr, killing and absorbing the Force energy of the Jedi at the Conclave on Katarr, along with every other living thing on the planet, save one Miraluka woman named Visas Marr. Having survived, Marr was taken by Nihilus, and became his apprentice. About one year later, the duo felt a growing presence in the Force and he sent his apprentice to investigate. The presence was a woman, known only as the Exile, who was on a quest to find the remaining Jedi Masters who had survived the Purge.

The Exile defeated and spared Visas Marr, convincing her to turn to the light side of the Force in the process. Although Nihilus returned to lurking the fringes of known space, he eventually fell in the Battle of Telos IV at the hands of Marr, the Jedi Exile, and Mandalore the Preserver in 3,951 BBY. 4,088 years later, Darth Nihilus, Darth Bane, and Darth Andeddu's holocrons fell into the hands of Darth Krayt, who plans to seek their advice on how to stop the Yuuzhan Vong creatures from taking over his body. The three Sith Lords, however, refused to tell him due to Krayt's defiance of Darth Bane's Rule of Two.