This article is about a/an actor/singer in the Metal Hero Series. Isao Sasaki (佐々木 功, Sasaki Isao?) portrayed Ken'ichiro Nanbara in Kyojuu Tokusou Juspion. He also performed the Choujinki Metalder song Kimi no Seishun wa Kagayaite Iru ka?. External links Isao Sasaki at Wikipedia. Isao Sasaki at the Kamen Rider Wiki Isao Sasaki at RangerWiki Retrieved from "https://metalheroes.fandom.com/wiki/Isao_Sasaki?oldid=48678" Categories: Actors Singers Actors who appeared in Super Sentai Actors who appeared in Kamen Rider Actors who appeared in Ultraman Community content is available under CC-BY-SA unless otherwise noted.