was a Japanese actress and narrator. She was affiliated with Aoni Production at the time of her death. She was most known for originating the roles of Fujiko Mine (Lupin III), Honey Kisaragi (Cutie Honey), and Bakabon's Mama (Tensai Bakabon).
Eiko Masuyama was born on April 22, 1936, the youngest of four sisters. When she was young she spoke slowly. Her teacher told her "You can't talk properly". At age 12, she joined the Children's Theater Company to improve her speech. She studied under Miyoko Asà Â, overcoming the complex. She later became interested in acting.
When Masuyama was too old for the children's company, Sanno theatrical company was launched by actors Sandayà « Dokumamushi and Yasushi Inayoshi.
She became a member of Aoni Production in the 1960s. She began to focus on voice acting because of its scheduling flexibility, to balance childcare and work.
In 2017, she was awarded the âÂÂAnime Outreach Categoryâ at the Tokyo Anime Award Festival 2017.
Masuyama focused on narration, but in anime works she sometimes replayed the voices of earlier characters.
In 2021, she won the "Merit Award" at the 15th Seiyu Awards.
Masuyama died of pneumonia on May 20, 2024, at the age of 88. Her death was announced a month later by Aoni.