* ActingForTwo: Hiro Mizushima plays both Tendou and his evil twin.
* ActorAllusion - [[Series/KamenRiderRyuki Shiro Kanzaki's]] actor, Kikuchi Kenzaburo, has a cameo as a Zectrooper ''and'' the Worm mimicking him - before promptly impaling him the same way Kamen Rider Odin was once.
** And Kikuchi Mika (no relation) appears in an outfit similar to one she wore on ''Series/TokusouSentaiDekaranger''.
* HeyItsThatGuy - [=KickHopper=] is [[Series/EngineSentaiGoOnger Go-On Gold]] (Hidenori Tokuyama).
** One Worm cloned Yuki, portrayed by MikaKikuchi [[Series/TokusouSentaiDekaranger Deka Pink]] nonetheless.
** Mishima (Yuge Tomohisa) was previously a [[BattleButler less malevolent]] Dragon to Shuichi Kitaoka aka [[Series/KamenRiderRyuki Kamen Rider Zolda]] (his name was Goro Yura, for the record).
** [[Series/ChouSeiShinSeries Impactor Logia from Gransazer]] (Shinnosuke Abe) appears in the Dark Kitchen arc (ep 29-30).
** Hiro Mizushima, Tendou himself, is most recognized by his appearance in many dramas such as ''AbsoluteBoyfriend''.
* HeyItsThatVoice - Before playing the role of [[Series/KamenRiderDenO Urataros]], KojiYusa did the voice of the Gatack Zecter in the Hyper Battle DVD.
** Also, you won't like when Hiro Mizushima (aka Kabuto) [[TheIncredibleHulk gets VERY angry]] in Japanese.
* {{Promoted Fanboy}}s - Tokuyama Hidenori and Uchiyama Masato, who played Yaguruma and Kageyama respectively, are unabashed ''Franchise/KamenRider'' fans, and gladly returned to reprise their roles when the Hoppers appeared briefly and early in ''Series/KamenRiderDecade''.
* StarMakingRole: This was Hiro Mizushima's first starring role, and what catapulted his status into one of the most popular Japanese actors today, as prior to him starring in ''Kabuto'', he only had small appearances in other dramas.
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