Gagarl was a beastman who was created from a human from Earth. Surviving a nuclear world war and with most of his friends and family slain, , he, his sister Lisa, and many survivors of the war were captured by the Galran forces. He and Lisa made a deal with Daibazaal and Honerva. He would become a giant beastman, while Lisa would pretend to escape from the Galrans and blow up Castle Gradam from the inside. He arrived on Planet Altea, and was made giant-sized by a mass-adding beam. He then fought Golion, but was no match, and was slain by the Jyuohken.