|This article is about a/an Lord in Kamen Rider Agito.|
Cetos Orcinus (ケトス・オルキヌス Ketosu Orukinusu, 31-33): An Orca Lord (オルカロード Oruka Rōdo). Armed with a sword named the Fateful Flamberge (因果のフランベルジェ Inga no Furanberuje). He first appeared to halt Palleo from harming Masumi, as he was a follower of the El of the Water. Once partially awakened, the El orders him to kill Majima and Mana. But Orcinus is intercepted by Agito, but managed to overpower him. However, Orcinus was halted by Gills arriving after his revival. The Lord attempted to retreat, but had to fight both Gills and G3-X until he managed to retreat. Orcinus then attempted to kill Shouichi, forcing him to fight the Lord as Agito with Ryo present. The fight ended with Agito Ground Form's Rider Kick destroying the Lord.
OOO, Den-O, All Riders: Let's Go Kamen Riders
Due to a change in history caused by Ankh leaving a O Medal behind in 1971, Shocker achieved its goal of world dominion with the Shocker Greeed which defeated the Double Riders, and new members from the various groups that would had manifested in the normal timeline after Shocker's destruction. Cetos Orcinus was among the many monsters who were part of the this alliance. As more and more of the Kamen Riders started appearing and fighting Shocker's forces, Orcinus fought Agito alongside Pantheras Luteus only to be defeated.