Thasaro is an entity known as the Hawk God of Thanagar and quite possibly one of the Seven Devils of Thanagar like Onimar Synn. He was told to be so evil as a child that even the Thanagar gods feared him. In Legend of the Hawkman, Hawkman and Hawkwoman discover a crypt on Earth built millennia ago by Thanagarians. An urn in it holds Thasaro. Although the Hawks initially defeat Thasaro, cultist worshippers from Thanagar help free him again. Thasaro, angered by being defeated by Hawkman, attacks Hawkman’s Midway City and the earth. After leaving a trail of destruction, a giant version of Thasaro has a final showdown with the Hawks. They manage to subdue him with their Nth weapons and the Trinity banish him to the earth’s underworld.
