Origin

Once he was Otto Octavius - a brilliant and respected nuclear physicist, inventor and lecturer. In pursuit of academic excellence, Octavius designed and constructed a set of highly advanced robotic arms to assist him in his research. Now able to manipulate radioactive substances from a safe distance, Octavius was dubbed Dr. Octopus by his co-workers. A freak laboratory accident exposed Octavius to intense radioactivity, grafting the mechanical appendages to his body and granting him complete telepathic control over the artificial limbs. The mishap also altered Octavius' mind, transforming him into a criminally insane megalomaniac.

Abandoning his hopes to one day further the field of atomic research, Octavius turned instead to a life of crime. Possessed of incalculable power, the formerly timid scientist came to see himself as the most dangerous man alive. Dr. Octopus has sought power over others through various illegal endeavors, attempting to amass enough wealth through extortion and outright theft to build a sprawling empire of crime. If need be, Doc Ock is willing to resort to murder to achieve his desired ends. Through the years, he has become obsessed with the destruction of his most frequent nemesis, Spider-Man.

Dr. Octopus has proven to be one of Spider-Man's most formidable foes; their battles have been among the hero's most brutal, testing the limits of Peter Parker's amazing abilities. Although Octavius' original, benevolent nature returns from time to time, his sinister Dr. Octopus personality always re-emerges and become dominant once again.

Characteristics

Gender--Male

Eyes--Gray

Hair--Brown

Height: 5'10"

Weight: 220 lbs.

Tentacles: Max. Length 20 ft.

Powers

Telescopic vision: can see through the extented tentacles

Superhuman Striking Force: speed of ninety feet per second and strike with the force of a jackhammer

High-Wind Generation: can generate 50 mile per hour winds when spun

Wall-Climbing

Superhuman Concentration: can perform two complex and two simple independent actions, simultaneously, one with each arm

Intellect: Radiation Specialist and Engineer

Leadership: Strategist and a charismatic leader

Alternate Versions

House of M

Otto is a scientist working for the government, researching about mutant stem cells

Marvel Zombies

A zombified Doc Ock is seen with the undead Sinister Six at Doctor Doom's castle siege. He was later killed when he was in the line of fire between the Marvel Zombies and Galactus.

MC2

Shortly after the disappearance of Spider-Man and subsequent retirement, Doc Ock attacked the Daily Bugle and killed Robbie Robertson. This prompt J. Jonah Jameson to start "Project: Human Fly". When mercenaries were about to steal the suit for the project, Jack Jameson, John Jameson's son and JJJ's grandson, took the suit and wore it to defeat them. From then on, he became the costumed superhero, The Buzz. Together with Spider-Girl, they captured Doc Ock, who hired the mercenaries to steal the Buzz suit earlier. He was suffering from cancer, and slipped into coma, which is reported that he will might not wake up.

Spider-Man: Reign

Doc Ock is already dead in this reality and have programed his tentacles to save Spider-Man to the future version of the Sinister Six. The tentacles brought Spider-Man to the cemetery, where his loved ones are laid to rest and hoped that this will give him the inspiration to fight again.

Ultimate Universe

Dr. Otto Octavius is a scientist working for Norman Osborn, but is really a spy employed by Justin Hammer. When a lab accident turned Norman into the Green Goblin, Otto was also got caught in the accident, merging his body with metal appendages. He seek to avenge himself by confronting Justin but was stop bu Spider-Man, but the confrontation lead Justin to have a heart attack, thus killing him.

Together with the Green Goblin, they formed the Ultimate Six along with Electro, Kraven The Hunter, Sandman, and an unwilling participant, Spider-Man. In a fight with the Ultimates, Doc Ock was taken down by Wasp.

It is also revealed that he was behind the clones of Spider-Man. all the clones and Spider-Man fought Doc Ock, but two of the clones were killed (the Ultimate Tarantula and Kaine) and in the end, Spider-Man and Spider-Woman defeated Doc Ock.

When Norman is trying to escape the Ultimate's prison, Triskelion, Otto stop him and beat him to a pulp. Until Electro zapped him, knocking him unconscious.

Larval Universe

Doc Ock is a cat named Doctor Octopussy Cat.

Film

Played by Alfred Molina in ''Spider-Man II'', Otto Octavius is a much more sympathetic character that his usual portrayals-- until an accident caused during his fusion experiments. The tentacles he'd built to handle his reactor were immune to extreme heat and magnetism, but since they connected directly to his central nervous system, feedback from their advanced AI would overload his brain during use, if it weren't for a special inhibitor chip. Well, what do you know, it turns out activating the reactor blew out that chip-- while all the other parts of the harness remained functional. What are the odds?

Now insane from the overwhelming input, Octavious turns to crime for money to to rebuild his reactor (using mail-order parts, in an abandoned wherehouse.) Tagged Doctor Octopus by the press (because Doctor Strange was already taken, don't ya know) the villain has a climactic showdown with Spidey, but finally overcomes his mental damage just in time to prevent his own device from destroying New York.