Shadow Venomous

Shadowy Figure, simply known as Shadowy and later Shadowy Venomous, is main antagonist of the 2017 TV series OK K.O.! Let's be Heroes. He is a mysterious glorb dealer and the archenemy of K.O., who is later revealed to be the turbo form of Professor Venomous. He serves as a major antagonist in Seasons 1 and 2, and one of the two main antagonists of Season 3 (alongside T.K.O.)

What Makes him Pure Evil

 * Torturing K.O.
 * Creating T.K.O.
 * Forced Professor Venomous to merged with him
 * Kicking Out Lord Boxman of his house
 * Tried to Kill K.O.and Fink
 * Manipulate T.K.O. to Join Him
 * Nearly Killed several childrens and Heroes
 * Nearly Killed T.K.O. for mocking him