Naoko Mori (森 尚子, Mori Naoko) (born 29 November 1971) is a Japanese actress based in the United Kingdom. She is known for her roles as Toshiko Sato in Doctor Who and Torchwood, Yasuko Namba in Everest, Sarah in Absolutely Fabulous, Nicola in Spice World, and Betsy Braddock/Psylocke in X-Men '97.