Garguax

Garguax was an alien conqueror who became an enemy of the Doom Patrol. He first came to Earth in order to develop and test his highly advance weaponry. Garguax claimed that he had been banished from his home planet and that he intended to use his weapons to conquer it. After his first defeat by the Doom Patrol, Garguax joined the Brotherhood of Evil and has repeatedly fought the Doom Patrol.