Caerleon has only made sparing appearances throughout the Guyver manga. His first appearance was during the destruction of Relic's Point when he arrived along with the other Zoalords to help destroy the Relic. Over two years since that day, he has been assigned to protect the zoacrystals taken from his deceased comrades Purgstall, Yentsui and Waferdanos. Standing guard over the crystals aboard the Ark, he is suddenly confronted by the mysterious being known as Apollon. Caerleon changes to his battle form and attempts to confound Apollon with his "shadow copies", but Apollon was capable of copying his abilities and overpowered him. Apollon stole the zoacrystals of Caerleon's departed comrades and extracted Caerleon's own crystal from his head before disappearing. Caerleon is still alive, but that is unlikely to last. The loss of his zoacrystal has left him as a withered husk and he is expected to die soon.