Rio Natsuki (夏樹 リオ, Natsuki Rio, March 5, 1969 ) is a Japanese voice actress, narrator, and singer from Tokyo. She belongs to the Tokyo Actor's Consumer's Cooperative Society (Haikyō). She is 158 cm tall, weighs 48 kg, and has a blood type A. According to her official profile, her vocal range is mezzo-soprano.
Known For: Acting
Birthday: 1969-03-05
Place of Birth: Tokyo, Tokyo Prefecture, Japan
Also Known As: 夏樹 リオ, ナツキ リオ, なつき りお, 夏树里欧