Saku Mizuno

is a Japanese voice actress who is affiliated with Haikyō. She made her entertainment debut in 2018, and in 2021 she played her first main anime role as Rena Hananoi in the series Selection Project.

Career Mizuno was born on September 29, 1999. She started entertainment activities after being a finalist at an audition in 2016. She started a YouTube channel in 2018. In 2020 she played the role of Akira Hirose in the mobile game Baton Relay.

Mizuno played her first main role in an anime in 2021, voicing Rena Hananoi in Selection Project. The following year, she was cast as Ryō Yamada in Bocchi the Rock! and Liu Shouxue in Raven of the Inner Palace.

In 2022, Mizuno became a member of Seiyū E-Sports-bu, a group of Japanese voice actors that are streaming games on YouTube and Tiktok.

Mizuno was previously signed with Sony Music Artists. She joined Haikyō on June 1, 2025.

Filmography Anime 2021 Osamake as Young Girl (episode 12) The Vexations of a Shut-In Vampire Princess as Tio Flat

2024 Oshi no Ko as Koyuki Yoshidomi

2025 My Status as an Assassin Obviously Exceeds the Hero's as Amelia Rosequartz The Fragrant Flower Blooms with Dignity as Ayumi Sawatari

Games 2020 Baton Relay as Akira Hirose Tower of Fantasy as Lana