Professor Venomous is a villain from OK K.O.! Let's Be Heroes.
Professor Venomous is tall with a slender body and lilac skin (due to an experiment trying to get his powers back). He has black, spiky, slicked-back hair, a thin mouth with thin eyebrows, and dark purple eyelids. His nose is pointed and has dots representing stubble along his chin and lower jaw. His attire consists of a white coat with matching boots, a navy blue turtleneck underneath his coat, and black pants