Thaal Sinestro (/sɪˈnɛstroʊ/) is a fictional supervillain appearing in American comic books published by DC Comics, particularly those featuring Green Lantern. Sinestro is a former Green Lantern Corps member who was dishonorably discharged for abusing his power. He is the archenemy of Hal Jordan and founder of the Sinestro Corps.
Still longing to fulfill his destiny of becoming king of Atlantis, Aquaman now fights the Ocean Master, his own brother, and Nereus, the ex-fiancé of his girlfriend Mera, but fortunately the JSA are there in case things get serious
