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 each serve as a spin-off of a character from Kamen Rider W. Each film focuses on the characters of Ryu Terui and Katsumi Daido. The series' main protagonists, Shotaro Hidari, Philip, and Akiko Narumi, are also featured in both films. Koichi Sakamoto directs both films, with Keiichi Hasegawa writing the Accel portion and Riku Sanjo writing the Eternal portion. Kamen Rider Accel was dedicated to the memory of Minoru Tanaka, who portrayed Hiroshi Sagami within the film.