Kamen Rider W Returns (仮面ライダーＷ（ダブル） RETURNS Kamen Raidā Daburu Ritānzu) is a set of two V-Cinema (direct-to-video) releases that serve as spin-offs of characters from the Kamen Rider W television series and films. These films focus on the characters of Ryu Terui (Minehiro Kinomoto) as Kamen Rider Accel and Katsumi Daido (Mitsuru Matsuoka of SOPHIA) as Kamen Rider Eternal. The series' main protagonists Shotaro Hidari (Renn Kiriyama), Philip (Masaki Suda), and Akiko Narumi (Hikaru Yamamoto) also are featured in each film. Koichi Sakamoto directs both films, with Keiichi Hasegawa writing the Accel portion and Riku Sanjo writing the Eternal portion.