Akiyama Rina
Naomi
Support Role
Ishimaru Kenjiro
[Owner] | [Station master]
Support Role
Matsumoto Wakana
Nogami Airi [Ryotaro's sister}
Support Role
Nagata Akira
Ozaki Seigi
Support Role
Ueno Ryo
Miura Isse
Support Role
Takaiwa Seiji
Momotaros [Suit actor] | Kamen Rider Den-O [Suit actor]
Support Role
Eitoku
Urataros [Suit actor]
Support Role
Okamoto Jiro
Kintaros [Suit actor] | [Dojo owner] (Ep. 9, 35)
Support Role
Ogura Toshihiro
Ryutaros [Suit actor] | Kamen Rider Den-O Gun Form [Suit actor] | [Jogging man] (Ep. 13) | Kato Hiroshi (Ep. 27)
Support Role
Nagase Naoki
Seig [Suit actor]
Support Role
Ito Makoto
Kamen Rider Zeronos [Suit actor]
Support Role
Oshikawa Yoshifumi
Deneb [Suit actor] | Villain Imagins [Suit actor]
Support Role
Maruyama Hiroyuki Support Role

Tsukui Minami
[Daughter]
Guest Role
Okubo Hakobo
[Man in work clothes] (Ep. 1)
Guest Role
Ochiai Motoki
Tetsuo (Ep. 1-2)
Guest Role
Abe Ryohei
Oi (Ep. 3-4)
Guest Role
Namioka Kazuki
Yamagoshi Yu (Ep. 3-4)
Guest Role
Ujiie Megumi
[Head nurse] (Ep. 5)
Guest Role
Gotsuji Shingo
[Ambulance service member] (Ep. 5)
Guest Role
Ogoe Yuki
Saito Daiki (Ep. 5-6)
Guest Role
Tsuji Shinobu
[Daiki Saito's mother] (Ep. 5-6)
Guest Role
Kurihara Hitomi
Saito Yumi (Ep. 7-8)
Guest Role
Nanaeda Minoru
[Deputy director] (Ep. 9)
Guest Role
Uchino Kenta
Honjo Masaru (Ep. 9-10)
Guest Role
Yazaki Hiroshi
Kikuchi Shinji (Ep. 9-10)
Guest Role
Ono Asuka
Kobayashi Kasumi (Ep. 11-12)
Guest Role
Ikeda Narushi
Kobayashi Kensaku (Ep. 11-12)
Guest Role
Ueda Shun
Toyama Shuji (Ep. 13-14)
Guest Role
Kodama Norikatsu
Kasai Haruhiko (Ep. 15)
Guest Role
Oshiba Hayato
Hakamada Shujiro (Ep. 15-16)
Guest Role
Tanaka Sogen
Mogi Tomeji (Ep. 15-16)
Guest Role
Fuwa Mansaku
Higuchi Kosaku (Ep. 15-16)
Guest Role
Mitsushima Hikari
Sawada Yuka (Ep. 17-18, 33)
Guest Role
Sunami Noriko
[Yuka's mother] (Ep. 17)
Guest Role
Mitsumizo Koji
[Worker] (Ep. 19)
Guest Role
Shoji Yusuke
Tanaka (Ep. 21-22)
Guest Role
Matsuzawa Hiroaki
Iijima (Ep. 21-22)
Guest Role
Muro Tsuyoshi
Masuda Akio (Ep. 23-24)
Guest Role
Tamura Kei
[Police officer] (Ep. 23-24)
Guest Role
Yamanaka Takashi
[Detective] (Ep. 24)
Guest Role
Namiki Shiro
[Detective] (Ep. 24)
Guest Role
Yamamoto Kohei
Aoki Masashi (Ep. 25-26)
Guest Role
Kimura Manatsu
Aoki Mayu [Child] (Ep. 26)
Guest Role
Sato Masahiro
Shimoyama (Ep. 29)
Guest Role
Sugawara Takuma
Machida (Ep. 29)
Guest Role
Hayashi Tsuyoshi
Terasaki Toru (Ep. 30)
Guest Role
Taguchi Kazumasa
[Craftsman] (Ep. 30)
Guest Role
Imai Yasuhiko
[Contractor] (Ep. 31-32)
Guest Role
Aoki Shinsuke
Fujishiro Yuya (Ep. 31-32)
Guest Role
Suwa Taro
[Piano man] (Ep. 33-34)
Guest Role
Ozeki Shinji
Okumura Yuki (Ep. 33-34)
Guest Role
Furuya Yoichi
Yamaguchi (Ep. 35)
Guest Role
Shinkai Fuminori
[Singing contest tournament moderator] (Ep. 35)
Guest Role
Ishiguro Hideo
Kai (Ep. 37-49)
Guest Role
Takahashi Kosuke
[Contract holder] (Ep. 39)
Guest Role
Abe Katsunori
[Yuto's teacher when he was a student] (Ep. 39)
Guest Role
Ono Ryou
[Clock store owner] (Ep. 45)
Guest Role

Seki Toshihiko
Momotaros / Kamen Rider Den-O [Sword form]
Voice Actor
Yusa Koji
Urataros / Kamen Rider Den-O [Rod form] | Newt Imagin (Ep. 40)
Voice Actor
Terasoma Masaki
Kintaros / Kamen Rider Den-O [Ax form]
Voice Actor
Suzumura Kenichi
Ryutaros / Kamen Rider Den-O [Gun form] | Gecko Imagin
Voice Actor
Otsuka Yoshitada
Deneb / Kamen Rider Zeronos [Vega form]
Voice Actor
Miki Shinichiro
Sieg / Kamen Rider Den-O [Wing form]
Voice Actor
Yanada Kiyoyuki
Bat Imagin (Ep. 1-2)
Voice Actor
Nishi Rintarou
Crow Imagin (Ep. 7-8)
Voice Actor
Koyama Tsuyoshi
Rhino Imagin (Ep. 9-10)
Voice Actor
Kuroda Takaya
Owl Imagin (Ep. 13-14) | Albino Leo Imagin (Ep. 44-46)
Voice Actor
Hiyama Nobuyuki
Wolf Imagin (Ep. 17-18)
Voice Actor
Nakao Ryuusei
Jelly Imagin (Ep. 19-20)
Voice Actor
Tokuyama Hidenori
Molech Imagin (Ep. 27)
Voice Actor
Toriumi Kohsuke
Anthopper Imagin (Ep. 31-32)
Voice Actor
Inada Tetsu
Kraken Imagin (Ep. 35-36)
Voice Actor
Yamaji Kazuhiro
Leo Imagin (Ep. 37-38)
Voice Actor
Takagi Wataru
Armadillo Majin (Ep. 43-44)
Voice Actor
Tobita Nobuo
Bloodsucker Imagin (Ep. 27-28)
Voice Actor
Okawa Toru
Snowman Imagin (Ep. 45)
Voice Actor
Suzuki Chihiro
Spider Imagin (Ep. 25-26)
Voice Actor
Hoshino Mitsuaki
Bluebird Imagin (Ep. 30)
Voice Actor
Tadano Yohei
Whale Imagin (Ep. 15-16)
Voice Actor
Tsukui Kyosei
Crust Imagin (Ep. 5-6)
Voice Actor
Yanaka Hiroshi
Death Imagin (Ep. 48-49)
Voice Actor
Canna Nobutoshi
Scorpion Imagin (Ep. 23-24)
Voice Actor
Kashii Shoto
Wasp Imagin (Ep. 29)
Voice Actor
Tsuda Kenjiro
Oct Imagin (Ep. 41-42)
Voice Actor
Toshitsugu Takashina
Rabbit Imagin (Ep. 31)
Voice Actor
Toriumi Kosuke
Anthopper Imagin Ari
Voice Actor
Ochiai Koji
Tortoise Imagin (Ep. 21-22) | Pandarabbit Imagin (Ep. 39)
Voice Actor
Sakaguchi Koichi
Claw-Hand Mole Imagin (Ep. 35-36, 47-49)
Voice Actor
Kirii Daisuke
Mole Imagin (Ep. 35-36, 47-49)
Voice Actor