Kamen Rider G3

Kamen Rider G3 may refer to any the following characters.

G3 Operators
From Kamen Rider Agito Series:
 * Makoto Hikawa
 * Toru Hojo (Creator of the Victory One System)
 * Shouichi Tsugami (Kamen Rider Agito)
 * Takahiro Omuro : (Kamen Rider G3 Mild)

From Kamen Rider Decade series:
 * Shouichi Ashikawa (Exceed Gills/Agito)
 * Unknown G3-X User from early episode 12
 * Daiki Kaito (Kamen Rider Diend)
 * Yuusuke Onodera (Kamen Rider Kuuga)
 * Urataros (Possessed Diend-summoned Kamen Rider G3 in Cho Kamen Rider Den-O & Decade NEO Generations: The Onigashima Battleship)

Novel
In the novel reimagination of Kamen Rider Agito, the G3 System is originally created to fight the Lords/Unknown, not the Gurongi/Unidentified Life Form.