Ryoko Yonekura (米倉 涼子, Yonekura Ryōko; born August 1, 1975) is a Japanese actress and former fashion model best known for her role in the Japanese medical drama Doctor-X: Surgeon Michiko Daimon. She also performs the voice of Black Widow in the Japanese-language releases of the Avengers film series.
Source: “Ryoko Yonekura”, English Wikipedia (CC BY-SA 4.0), excerpt