Toshiki Kashu (賀集 利樹, Kashū Toshiki, born January 16, 1979) is a Japanese actor, best known for his role as Shouichi Tsugami, the main character of the Kamen Rider series Kamen Rider Agito.

[1] Although he was originally a model in magazines, he showed interest in acting and was cast in the 2001 TV Asahi series Kamen Rider Agito.

His other notable role is playing Kazuya Kuroki in the first four seasons of the popular police procedural series Honcho Azumi from 2009 to 2011.

In 2009, Kashu began studying at Kokugakuin University's Faculty of Shinto culture department.

On April 3, 2019, the day after shooting for his on-screen reprisal in Kamen Rider Zi-O, Kashu married a woman who worked for a real estate where they met at izakaya.