Chihiro Sunou is a female Japanese voice actress affiliated with the talent agency Haikyo, having previously been with Office PAC starting in 2020 before moving to her current agency in 2025. She was born on April 16 in Ibaraki Prefecture, Japan. Standing at 154 cm tall, her skills include playing the piano, softball tennis, and unicycling. Beyond voice acting, she holds qualifications as both a nurse and a public health nurse, and holds a standard driver's license. Her interests include cooking, collecting plates, knitting, and singing karaoke. Sunou is known for the role of Ricotta Fresca in the television anime series The Food Diary of Miss Maid, scheduled to premiere in 2026. Her other anime voice credits include Nicola in Lupin III Part VI, a Martel choir member and audience member in Kagiana Season 2, a role in the series Yurei Deco, and a part in the animated film Kimi no Iro. She has also contributed voice work to a notable number of foreign drama and film dubs for the Japanese market. Her dubbing work includes roles in Pennyworth as Sandra Onslow, in the musical drama Daisy Jones & The Six, the film Respect, the action series Cobra Kai, the comedy-drama The Sex Lives of College Girls, the DC animated film DC League of Super-Pets as a guinea pig, and the series Star Wars: Young Jedi Adventures. In the field of video games, she has provided voices for characters in Final Fantasy XVI, Princess Connect! Re:Dive, Isekai Nonbiri Life as Barbara, and Kemono Friends 3 as Boa Constrictor.