base), Gun Mode (, Gan Modo - Arma de fogo), Sword Mode (, Sodo Modo - Espada). Ela armazena os Rider Cards, que sao inseridos no DecaDriver para transforma-lo nos outros Kamen Riders da Era Heisei. Mantem tambem informacoes guardadas sobre os mesmos. Quando um Attack Ride Card (, Atakku Raido Kado) e escaneado, ele usa o Decade Slash (, Dikeido Surasshu), no Sword Mode, e o Decade Blast (, Dikeido Burasuto), no Gun Mode.[editar]Elenco[editar]Elenco principalMasahiro Inoue: Tsukasa Kadoya (Kamen Rider Decade)Kimito Totani: Daiki Kaitoh (Kamen Rider Diend)Ryouta Murai: Yusuke Onodera (Kamen Rider Kuuga)Kanna Mori: Natsumi HikariRenji Ishibashi: Eijiro HikariTatsuhito Okuda: NarutakiMiyuki Sawashiro: KivalaKazushisa Kawahara: Apollo GeistMark Okita: Decadriver (Voz), Diendriver (Voz), K-Touch (Voz)Eiichiro Suzuki: Narrador[editar]ConvidadosKoji Seto: Wataru Kurenai (Kamen Rider Kiva original, ep 1, Final Chapter)Hiroko Sato: Detetive Ai Yashiro / Toko Yashiro (ep 1-3, 12-13)Hidenori Tokuyama: Sou Yaguruma (Kamen Rider Kick Hooper, ep 2-3)Masato Uchiyama: Shun Kageyama (Kamen Rider Punch Hooper, ep 2-3)Arashi Fukasawa: Principe Wataru (Kamen Rider Kiva, ep 4-5, 30-31, Final Chapter)Tomokazu Sugita: Kivat-bat III (ep 4-5)Sohto: Rei Itoya (ep 4)Mansaku Ikeuchi: Fangaia Besouro (ep 4-5)Kohei Murakami: Masato Kusaka (Kamen Rider Kaixa, ep 4-5)Momosuke Mizutani: Shinji Tatsumi (Kamen Rider Ryuki, ep 6-7, Final Chapter)Eiki Kitamura: Ren Haguro (Kamen Rider Knight, ep 6-7)Sae Takahashi: Reiko Momoi (ep 6-7)Masato Irie: Kamata (Kamen Rider Abyss, e 6-9)Hiroki Suzuki: Kazuma Kendate (Kamen Rider Blade, ep 8-9, 30-31, Final Chapter)Yoshihiko Narimatsu: Sakuya Hishigata (Kamen Rider Garren, ep 8-9)Kazuma Kawahara: Mutsuki Kuroba (Kamen Rider Leangle, ep 8-9)Ruo: Hajime Shijo (Kamen Rider Chalice, ep 8-9)Syunsuke Seino: Takumi Ogami (Kamen Rider 555, ep 10-11)Yurie Midori: Yuri Tomoda (ep 10-11)Ryosuke Miura: Momose (Orphnoch Tigre, ep 10-11)Satoshi Yamanaka: Shouichi Ashikawa (Kamen Rider Agito, ep 12-13, Final Chapter)Rina Akiyama: Naomi (ep 14-15)Tamaki Matsumoto: Kohana(ep 14-15)Kenjirou Ishimaru: Owner (ep 14-15)Toshihiko Seki: Momotaros (ep 14-15, 18, All Riders vs. Dai Shocker)Kouji Yusa: Urataros (ep 14-15)Masaki Terasoma: Kintaros (ep 14-15)Kenishi Suzumura: Ryutaros (ep 14-15)Takuya Mizoguchi: Ryotaro Nogami (Kamen Rider Den-O, ep 15)Dori Sakurada: Kotaro Nogami (Kamen Rider NEW Den-O, ep 15)Shin'ichiro Miki: Sieg (ep 15)Daijiro Kawaoka: Souji / Sou Otogiri (Kamen Rider Kabuto / The Bee, 16-17, Final Chapter)Tetsuya Makita: Arata (Kamen Rider Gatack, ep 16-17)Sumie Sasaki: Vovo (ep 16-17)Rio Kanno: Mayu (ep 16-17)David Ito: Hibiki / Gyuki (Kamen Rider Hibiki, ep 18-19)Kazuki Koshimizu: Asumu (Kamen Rider Hibiki, ep 18-19, 30-31, Final Chapter)Jouji Shibue: Ibuki (Kamen Rider Ibuki, ep 18-19)Shingo Kawaguchi: Todoroki / 1o usuario do G3-X (Kamen Rider Todoroki / G3-X, ep 8-9, 12, 18-19)Kenji Matsuda: Zanki (Kamen Rider Zanki, ep 18-19)Nana Akiyama: Akira (Kamen Rider Amaki, ep 18-19, 30)Takashi Hagino: Takeshi Asakura (Kamen Rider Ohja, ep 19, All Riders vs. Dai Shocker)Kouhei Takeda: Otoya Kurenai (Kamen Rider Dark Kiva, ep 20-21)Yuki Kuroda: Junichi Kaitoh (Kamen Rider Glaive, ep 22-23)Yoko Mitsuya: Haruka Miwa (Kamen Rider Larc, ep 22-23)Takao Sugiura: Shin Magaki (Kamen Rider Lance, ep 22-23)Tori Matsuzaka: Takeru Shiba (Shinken Red, ep 24-25)Hiroki Aiba: Ryunosuke Ikenami (Shinken Blue, ep 24-25)Rin Takanashi: Mako Shiraishi (Shinken Pink, ep 24-25)Shogo Suzuki: Chiaki Tani (Shinken Green, ep 24-25)Suzuka Morita: Kotoha Hanaori (Shinken Yellow, ep 24-25)Keisuke Sohma: Genta Umemori (Shinken Gold, ep 24-25)Gorou Ibuki: Hikoma Kusakabe(ep