Asajj Ventress was born on Dathomir, home of the Nightsisters, but her clan was forced to give her up to a pirate named Hal'Sted when she was still a baby. When the rogue was killed on Rattatak, Jedi Knight Ky Narec rescued Ventress and trained her in the ways of the Force. But he, too, was killed, and Asajj was consumed with fury — raw emotion that led her to the dark side. In time, she became the apprentice of Count Dooku and one of his most valuable servants.

Throughout the Clone Wars she acted as a Separatist assassin. One of her first missions was the kidnapping of Rotta, Jabba the Hutt’s son, and framing the Jedi for the act. The Separatists were eventually exposed, however, by Anakin Skywalker and his Padawan Ahsoka Tano. Time and again Ventress battled notable Force-wielders including Anakin, Ahsoka, and Obi-Wan Kenobi, proving to be adept at lightsaber combat and utterly ruthless. In a key campaign of the war, Ventress and General Grievous infiltrated Kamino — the main production center for clone troopers — with Trident ships. Her target was the clone DNA banks, however, she was intercepted by Skywalker, losing the data, ultimately evading capture.

But at the Battle of Sullust, Darth Sidious ordered Dooku to dispose of his student. Her dark Master instructed his troops to destroy Ventress, but she survived yet again -- and once more vowed revenge. Rescued by scavengers, Ventress killed the crew and piloted their ship to Dathomir where she was reunited with Mother Talzin and her Nightsister clan. Together, they plotted to assassinate Dooku with the help of a Nightbrother called Savage Opress. The witch used dark magicks to turn the Zabrak into a brutish menace, meant to be Dooku’s new apprentice but loyal to the Nightsisters. But Dooku proved too strong for even their combined efforts — and Savage finally snapped under the strain of his abusive training, turning his fury on both Dooku and Ventress. 

Ventress escaped and utilized her Force skills to become a successful bounty hunter. In one of earlier jobs, Asajj teamed up with a young Boba Fett but let her own moral compass guide her in her new career. When Ahsoka Tano was framed for murder and on the run, Ventress was the first to track the young Jedi. Despite their many previous battles, Ventress believed Ahsoka’s story and helped her, showing that good remained inside the wandering warrior. A prime suspect herself, Asajj was forced to convince Anakin Skywalker that she had nothing to do with framing his Padawan and led Anakin to the true culprit: Barriss Offee.

Ventress insisted on working alone until she found an unlikely partner on Pantora: the maverick Jedi Quinlan Vos, who had been sent by the Jedi Council to assassinate Count Dooku. Ventress joined Vos in hopes of destroying Dooku, but grew to love the Jedi. On Ventress’s homeworld of Dathomir, Vos participated in Nightsister rituals and opened himself to the powers of the dark side to complete his quest. But through their connection, Ventress found herself coping with feelings she’d thought she’d purged from herself: love, compassion and selflessness. Ultimately, Ventress sacrificed herself to save Quinlan’s life, taking the brunt of Dooku’s Force lightning during their final confrontation. But that wasn’t the end of Asajj’s story…

When a group of elite clones started asking questions about M-count in the years after Order 66 wiped most of the Jedi Order out of existence, Ventress was called upon by Fennec Shand to lend her unique expertise. Hunter, Wrecker, and Crosshair were wary, but Omega took a liking to the bounty hunter despite being deemed an “odd little clone.” And despite a tumultuous introduction with the brothers of Clone Force 99, Ventress agreed to test Omega to see if she had a natural proclivity toward the Force. During their brief time together on Pabu, Asajj proved that she had changed from her days as a Separatist assassin, with a yellow-bladed lightsaber and an air of calm in perilous situations.