Professor Venomous

Professor Venomous (or simply known as Venomous and formerly Lasterblast) is a major antagonist in the 2017-2019 Cartoon Network series O.K K.O Let's Be Heroes, serving as a major antagonist in Season 1, one of the main antagonists in Season 2, and one of the two main antagonists (alongside Shadowy Figure) of Season 3. He is a supervillain who is (formerly) part of the superhero team P.O.I.N.T as well as Carol/Silver Spark's ex-boyfriend, K.O's father, Fink's boss/creator, and Lord Boxman's parnter-in-crime.

He is voiced by Steve Ogg.

What made him heroic?

 * In the episode Big Reveal, it reveals that Professor Venomous use to be a superhero before becoming a villain.

What made him villainous?

 * He became a villain after selling his products to other villains and believed that he didn't need his powers to help him if he had his criminal empire.