Sumi Shimamoto is a Japanese voice actress.

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She is an experienced Japanese voice actress recognized for her extensive career in animation, particularly her frequent collaborations with Hayao Miyazaki.
She is widely recognized for voicing Nausicaä in Nausicaä of the Valley of the Wind, Clarisse in The Castle of Cagliostro, and Yasuko Kusakabe in My Neighbor Totoro.
She is famously associated with the works of director Hayao Miyazaki.