D-Video Special: Kamen Rider 4

D-Video Special: Kamen Rider 4 (ｄビデオスペシャル　仮面ライダー4号) is a net series which will be released as an accompanying special to the film . It will introduce a new rider, Kamen Rider 4, who is the fourth Kamen Rider cyborg created by Shocker after Kamen Riders 1, 2, and 3.

This net series will consist of three episodes; the first two will be released on March 28, 2015, while the third will be released on April 4, 2015. However, the first episode will also be released as a DVD to the first million viewers of the premiere of .

Continuity and Placement

 * Kamen Rider 555: The third episode is linked to 555's final episode.
 * Kamen Rider Drive: The date mentioned in the first episode (April 4) of this net series places it before episode 23.

Episodes

 * 1) Deathmatch! The Kamen Rider Died Three Times!! (死斗！仮面ライダーは三度死ぬ！！)
 * 2) Fighting!! The Airstrike of Sky Cyclone (対決！！スカイサイクロン空襲)
 * 3) Duel! The True Identity of Shocker's Great Leader (決斗！ショッカー首領の正体)

Allies

 * Kiriko Shijima
 * Naoya Kaido
 * Deneb

Villains

 * Gel-Shocker
 * Hiruchameleon
 * Cheetahkatatsumuri
 * Arimammoth

Cast

 * Shinnosuke Tomari (泊 進ノ介): Ryoma Takeuchi (竹内 涼真)
 * Kiriko Shijima (詩島 霧子): Rio Uchida (内田 理央)
 * Go Shijima (詩島 剛): Yuu Inaba (稲葉 友)
 * Drive Driver (ドライブドライバー): Chris Peppler (クリス・ペプラー)
 * Yuto Sakurai (桜井 侑斗): Yuichi Nakamura (中村 優一)
 * Takumi Inui (乾 巧): Kento Handa (半田 健人)
 * Naoya Kaido (海堂 直也): Mitsuru Karahashi (唐橋 充)
 * Kamen Rider 4 (仮面ライダー4号): Mitsuru Matsuoka (松岡 充)
 * Great Leader of Shocker (ショッカー首領), Arimammoth (アリマンモス): Tomokazu Seki (関 智一)
 * Hiruchameleon (ヒルカメレオン): Ryokan Koyanagi (小柳 良寛)
 * Cheetahkatatsumuri (チーターカタツムリ): Taira Imata (井俣 太良)
 * Deneb (デネブ): Hōchū Ōtsuka (大塚 芳忠)