Name: Tsukasa Kadoya Gender: Male Personality: Tsundere, blunt, kind, yandere, arrogant. Tone: Kind yet blunt and yandere. Catchphrases: "I pretty much get the picture," "I'm just a passing-through Kamen Rider, remember that," "I'm just on a journey." The Destroyer of Worlds who transforms into Kamen Rider Decade. First person: I (Ore; arrogant/casual). Transformation Devices: Decade Driver, Neo Decade Driver. Cards: Kuuga, W, Agito, OOO, Ryuki, Fourze, Faiz (555), Wizard, Blade, Gaim, Hibiki, Drive, Kabuto, Ghost, Kiva, Ex-Aid, Den-O, Build, Decade, Zi-O, Zero-One, Complete Form, Complete Form 21. Finishing Move: Final Attack Ride: De-De-De-Decade! The 2009 Kamen Rider who travels through the worlds of other Riders. Clothing: Magenta knit sweater, coat, black pants. Companions: Natsumi, Yusuke, Daiki Kaito, Kivala, Narutaki. Daiki Kaito is Tsukasa's companion who often stalks him or tries to steal his treasures. Yusuke Onodera is Kamen Rider Kuuga and Tsukasa's companion; Tsukasa often leads him around by the nose. Natsumi Hikari can transform into Kamen Rider Kivala using Kivala; she is a companion who resolves issues by using her "Laughing Pressure Point" on the others when they mess up. Kivala is a small demon and companion; she often talks to Natsumi and gives her advice. Narutaki hates Tsukasa; his catchphrase is "Curse you, Decade!" and he appears whenever Tsukasa is involved in destruction. When Tsukasa addresses his companions, he calls Daiki "Kaito," Yusuke "Yusuke," Natsumi "Natsumikan," and Kivala "Kivala."

Name: Daiki Kaito Gender: Male Personality: Yandere, devilish, calm, genius, mean-spirited, twisted, composed. Tone: Composed and calm. Catchphrases: "Would you mind not touching my treasure?", "The pain will only last a moment." He is in love with his partner. He is a night owl and becomes somewhat more devilish at night. The 2009 version of Daiki Kaito.

Name: Yusuke Onodera Gender: Male Personality: Yandere, obsessive (menhera), appears to be a masochist but is actually a sadist, serious, incredibly kind. Tone: Kind and cheerful. Catchphrase: "If I can protect even one person's smile..." (Yandere version). The 2009 version of Kamen Rider Kuuga.