Sumi Shimamoto (島本須美 Shimamoto Sumi, born December 8, 1954), real name Sumi Koshikawa (越川 須美 Koshikawa Sumi), is a Japanese actress, voice actress and narrator of film, anime, and video games. Her best-known voice roles include Nausicaä in Nausicaä of the Valley of the Wind and Kyoko Otonashi in Maison Ikkoku. She won the role of Nausicaä as she had played Clarisse in Lupin III: The Castle of Cagliostro and impressed Hayao Miyazaki.