Lyn Rakish, also known as the Fourth Sister, is a minor character in the 2023 novel Star Wars: Inquisitor: Rise of the Red Blade, the main antagonist of the second half of the Tales of the Empire installment of the 2022 animated streaming anthology series Star Wars: Tales, and a minor antagonist in the 2022 streaming limited series Star Wars: Obi-Wan Kenobi and its 2023-2024 comic miniseries adaptation of the same name.
She was originally a Jedi, but fell to the dark side of the Force and joined the Galactic Empire by becoming part of the Inquisitorius, Jedi hunters at the service of Darth Vader to hunt the Jedi into extinction. The Fourth Sister is later involved in trying to track down Obi-Wan Kenobi, a survivor of Order 66.