Hydro-Man is a supervillain appearing in American comic books published by Marvel Comics as an enemy of the superhero Spider-Man. Once an ordinary crewman, Morris Bench was accidentally knocked overboard while stationed on his ship during a battle between Spider-Man and Namor, and fell into the ocean, where a powerful experimental generator was being tested. This led to his transformation into Hydro-Man who, blaming Spider-Man for what happened to him, turned to a life of crime while seeking revenge against the web-slinger.