The Agorian Riders were the chiefs of the Agorians.  They were found mounted on Agorian beasts. Ratchet had to defeat all five riders in order to stop General Glahm's invasion of Krell Canyon. However, there was further trouble from the Hydra Tanks, and later, the Talons.
- Ratchet & Clank Future: A Crack in Time (first appearance)