|This article is about a/an actor in Kamen Rider Agito.|
Yūsuke Tomoi (友井 雄亮 Tomoi Yūsuke) played Ryou Asihara/Kamen Rider Gills in Kamen Rider Agito, including Kamen Rider Agito: A New Transformation and Kamen Rider Agito: Project G4, along with the video games Kamen Rider Agito and Kamen Rider: Genealogy of Justice. He also had a minor role in Kamen Rider Ryuki: Episode Final, as Asakura's Victim.
On June 6, 2006, he married Mika Katsumura, the actress who played Yuri/TimePink in Mirai Sentai Timeranger. In August that same year, Mika gave birth to a girl. The couple separated in June 2008 and announced their divorce in August 2008. Katsumura gained custody of their daughter.
Recently, Yūsuke Tomoi confirmed via Twitter that he did not reprise his role as Gills in the video game Super Climax Heroes, but stated that if he is asked, he would be willing to reprise the role. 
He reprised his role as Gills in video game All Kamen Rider: Rider Revolution.
On January 2019, Yusuke Tomoi has announced his retirement following news that he assaulted a live-in (now ex) girlfriend.