Yuko Sanpei

Yuko Sanpei, born on February 28, 1986, in Tokyo, Japan, is a voice actress and narrator affiliated with Axl One. She is known for her work in the film industry, particularly for her voice roles in various animated films. Sanpei's notable works include voicing Touma Tachihara/Tomoe Seki in "Detective Conan: Quarter of Silence" (2011). She has also lent her voice to the titular character, Butt Detective, in multiple films, such as "Butt Detective the Movie: Mystery of the Ruins of Tentōmushi" (2020), "Butt Detective the Movie: Shiriarty" (2022), and "Butt Detective the Movie: Farewell, Oh My Beloved Butty" (2024). Additionally, she voiced Seita in "Shin-Gekijōban Gintama: Yoshiwara Daienjō" (2026).