This article is about a/an character in Kamen Rider 555.

Kazufumi Mizuno (水野 和史, Mizuno Kazufumi^?): One of the two excavators who ended up in the underground Ryusei School and encounter the Goat Orphnoch. Kazufumi Mizuno is portrayed by Kengo Ōkuchi (大口 兼悟, Ōkuchi Kengo^?), who would later play the character of Nobunaga in Kamen Rider × Kamen Rider OOO & W Featuring Skull: Movie War Core