In the windy city of Fuuto, detective Shotaro Hidari and his partner, the mysterious Philip combine to become the two-in-one Kamen Rider, W in order to fight creatures called "Dopants" that abuse the power of items called Gaia Memories.
as Shotaro Hidari / Kamen Rider Double / Kamen Rider Joker
as Philip / Kamen Rider Double
as 鸣海亚树子
as 鸣海庄吉
as Ryu Terui / Kamen Rider Accel
as 刃野干夫
as 真仓俊
as 园咲若菜
as Ryubee Sonozaki / Terror Dopant
