This woman was one of Buffy's stunt doubles on Buffy the Vampire Slayer. She plays the villain in Episode 13 of The Mandalorian.
In this episode, we meet Ahsoka Tano. I'm not totally happy with the look of the character, but the character seems genuine enough. I got used to her appearance. This is passable for an older Ahsoka Tano, post Return of the Jedi. According to this website, she would be 45 years old: https://starwars.fandom.com/wiki/Ahsoka_Tano