Rokurō Naya

Rokurō Naya (納谷 六朗) is a voice actor who filled in for Kamen Rider #1 in conjunction with stock footage of Hiroshi Fujioka as Takeshi Hongo following the motorcycle accident which forced him to leave the show, this was used to fill in the gap before Takeshi Sasaki was brought in as Hongo's replacement Hayato Ichimonji (Kamen Rider #2).

He is the younger brother of the late Gorō Naya, who voiced the Great Leader of Shocker and his later incarnations.