Rumiko Tezuka is a Japanese voice actor who has been active in the anime industry since the 1960s. She is affiliated with the talent management firm Aoni Production. Tezuka is best known for her portrayal of the character Unico in various animated adaptations of Osamu Tezuka's works, including the 1981 film Unico and the 1983 film Unico in the Island of Magic. She also voiced Unico in the series Dr. Pinoko no Mori no Bōken. Her other major voice roles include contributions to classic anime such as Astro Boy, where she played multiple characters across episodes, and Kimba the White Lion. Throughout her career, Tezuka has frequently collaborated with Tezuka Productions and other studios on projects based on Osamu Tezuka's manga, as well as on dubbing foreign films and series into Japanese. Her notable achievements include a long-standing presence in the voice acting community and recognition for her work in bringing iconic characters like Unico to life, demonstrating versatility and emotional depth in her performances.