Professor Venomous

Professor Venomous is a villain from OK K.O.! Let's Be Heroes.

who would later turn to a life of villainy upon losing his powers, as well as the ex-boyfriend of Carol/Silver Spark and the father of K.O.. He is also one of the top business partners and clients of Lord Boxman, and later the co-owner of Boxmore with him, and the boss/creator of Fink. He serves as a major recurring antagonist in Season 1 and 2, and the main antagonists of Season 3.

Trivia

 * He is bisexual and became a husband of Lord Boxman.