This article is about a/an actor in Kamen Rider Fourze.

Kohki Okada (岡田 浩暉 Okada Kōki) played Groundain/Harumi Saeba in Kamen Rider Fourze the Movie: Everyone, Space is Here!. He reprised this role in a voice only appearance as Groundain in Kamen Rider × Super Sentai × Space Sheriff: Super Hero Taisen Z.He also Played Kazuki Shirakawa in Kamen Rider Ex-Aid Episode 13 and 14.

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