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Tōru Okazaki
Daisuke Yamamoto / Kamen Rider Amazon

Akiji Kobayashi
Tōbei Tachibana

Yoji Matsuda
Masahiko Okamura
Mariko Matsuoka
Ritsuko Okamura

Ryūji Saikachi
Mogura Beastman (voice)

Hirohisa Nakata
Great Emperor Zero

Kazuo Hayashi
Diving Beetle Beastman (voice)

Mitsuo Andō
Business Merchant (Diving Beetle Beastman Human Form)

Gorō Naya
Narrator (voice)