From Wikipedia, the free encyclopedia Naoko Mori (森 尚子 Mori Naoko?) (born November 19, 1971) is a British actress of Japanese descent known for roles as Sarah, Saffron's "odd" friend in Absolutely Fabulous, Mie Nishikawa in Casualty, and Toshiko Sato in Doctor Who and Torchwood. Description above from the Wikipedia article Naoko Mori, licensed under CC-BY-SA, full list of contributors on Wikipedia.