Yukiko Nikaido

Kazuko Yagyū (柳生 加津子, Yagyū Kazuko; née Nikaido, October 27, 1938 – July 3, 2026), known professionally as Yukiko Nikaido (二階堂 有希子, Nikaidō Yukiko), was a Japanese actress. She also served as the first president of the Yatsugatake Club, with her second son Sōsuke Yagyū succeeding her.

Nikaido was married to Japanese actor Hiroshi Yagyū from 1964 until his death in 2022 and her first son was Japanese horticulturist Shingo Yagyū, who died in 2015. She is best known for voicing Fujiko Mine in the first Lupin III anime series Lupin the 3rd Part I.