The Ahsoka TV show is an excellent opportunity to bring back fan-favorite characters from Star Wars Rebels and Star Wars: The Clone Wars. This includes protagonist Ahsoka Tano, Ezra Bridger the rebel, Sabine Wren, and Huyang the droid, but they aren't alone. Ahsoka also introduced a few new characters, including the antagonists Baylan Skoll and Shin Hati.
Source:https://www.cbr.com/ahsoka-what-fans-want-to-know-about-baylan-and-shin/