List of Kamen Rider W characters

This is a list of characters of the 2009–2010 Japanese tokusatsu series Kamen Rider W.

The Narumi Detective Agency (鳴海探偵事務所, Narumi Tantei Jimusho) investigates Dopant activity, founded by Sokichi Narumi who is murdered while he and Shotaro found Philip during an investigation into the Dopants, leaving Shotaro as his successor.

Shotaro Hidari (左 翔太郎, Hidari Shōtarō) is the man on the streets, having been taught by Sokichi Narumi how to be a private investigator. After Sokichi's death, Shotaro investigates Dopant crimes, and with Philip he fights Dopants as the body of Kamen Rider Double (仮面ライダーダブル, Kamen Raidā Daburu).

During the events of W Forever, Shotaro receives Sokichi Narumi's Lost Driver, allowing him to become Kamen Rider Joker (仮面ライダージョーカー, Kamen Raidā Jōkā) on three occasions. This belt is retrieved by Philip and given to Shotaro before his disappearance, allowing him to become Kamen Rider Joker, again.

Shotaro Hidari is portrayed by Renn Kiriyama (桐山 漣, Kiriyama Ren). As a child, Shotaro is portrayed by Issei Kakazu (嘉数 一星, Kakazu Issei). Kakazu later portrays Akira Aoyama in the television series' final episode.

The mysterious Philip (フィリップ, Firippu) is Shotaro's partner in the detective agency who lost his memory and uses his special abilities to access the Gaia Library to solve Dopant crimes. To help fight Dopants, normally Philip uses his mind and consciousness to become Kamen Rider Double. But with the Fang Memory, Philip switches places with Shotaro as Double in FangJoker (ファングジョーカー, Fangu Jōkā) form. Eventually, Philip learns that he is Raito Sonozaki (園咲 来人, Sonozaki Raito) and had been used by his father Ryubee to create the artificial Gaia Memories for the Museum.

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