Doctor Otto Octavius (Doctor Octopus)

Origins
Born approximately in the year 1973 in Schenectady, New York, Otto Octavius met his future business partner Norman Osborn while in college. The two went on to found the company Oscorp and hoped to change the world together. According to Otto, the name "Oscorp" was a reference to the two "O's" in his and Norman's last names. Oscorp proved to be a very successful business but one day  a boy named Martin Li came to Oscorp to have a consultation for an unknown, chronic medical condition. Unknown to Otto, Norman had the boy injected with an early version of the experimental GR-27 ("Devil's Breath") serum. The treatment triggered a reaction that resulted in the death of Li's parents and Li receiving superhuman powers. Disgusted with Norman's recklessness and unethical behaviour, Otto filed a lawsuit and ended up leaving Oscorp in exchange for a settlement, ending his friendship with Norman in the process.

Octavius Industries
Otto would go on to found his own company, Octavius Industries. However, he was unable to reach the same level of success that he had at Oscorp, and was forced to rely on grants for finance. Octavius later hired Peter Parker, a high school child who had a lot of potential, together they worked on prosthetics in order to make the world a better place. Otto and Peter had a lot of success in making prosthetics and made a prototype that had the potential to have a faster response time than a human arm. One day, Otto started to think "Why give someone back what they had, when you can make them better?" Because of this he created tentacle like arms in secret and wore them, when he sowed Peter he began to become worried about him as he tested them on himself. Otto didn't care though and carried on his day. These arms started to turn him insane though and brought out his desires, he wanted Norman Osborn dead...

The Sinister Six
Octavius then disappeared out of nowhere and told nobody where he was going. Octavius started controlling things from behind the scenes, he waited until Martin Li (Mr Negative) had been arrested before he struck. He then organised a prison break in the raft and let everyone free. He assembled 5 criminals together in order to form the Sinister Six. Electro, Vulture, Scorpion, Rhino, Mr Negative and Doctor Octopus worked together in order to kill Norman Osborn. Each of the other criminals would get something that they asked for when the six succeeded. The Six attacked many Oscorp facilities and occupied the police while Otto released Devil's Breath upon the world, he did this to try and ruin Norman Osborn's reputation. When the rest of the six failed, Otto kidnapped Norman and dropped him off the side of a skyscraper, he was caught though, by Spider-Man who swung him down to safety, Octavius and Spider-Man then fought for the Devil's Breath cure, Ock was eventually defeated and Spider-Man cured the city with it.

The Master Planner
Later on, Doctor Octopus started going by "The Master Planner" and used technology to control everything from behind the scenes. Otto restarted the Sinister Six with a new roster: Kraven the Hunter, Mysterio, Chameleon, Vulture, Sandman and Scorpion. Otto did many things under this name including hacking the police systems and spreading them out across New York, Shutting down computer systems across the city, etc. He was later revealed to be the planner by Spider-Man, in their battle Octavius trapped Spider-Man underneath piles and piles of rubble and nearly killed him. He survived though and had Ock arrested.

Powers
None

Abilities
Genius Intellect

Master Engineer

Weapons
Mechanical Tentacles

Suit
Fire and Waterproof Suit

Other Equipment
Octavius Industries Resources