Doctor Octopus (Dr. Otto Gunther Octavius), also known as Doc Ock for short, is a fictional character appearing in American comic books published by Marvel Comics. He is a highly intelligent, myopic, and somewhat stocky mad scientist who sports four strong and durable appendages resembling an octopus's tentacles, which extend from the back of his body and can be used for various purposes. After his mechanical harness became permanently fused to his body during a lab accident, Octavius turned to a life of crime, and came into conflict with the superhero Spider-Man. Since his debut in The Amazing Spider-Man #3 (July 1963), Doctor Octopus has endured as one of Spider-Man's most prominent villains, and is regarded as one of his three archenemies, alongside the Green Goblin and Venom. He is the