Doctor Octopus (Marvel's Spider-Man)

"Oh, Parker... If you want to change the world you have to be the kind of man who can make the hardest decisions."

- Otto to Peter during their fight.

Dr. Otto Gunther Octavius, also known as Doctor Octopus, is the main antagonist of Marvel's Spider-Man. He is the former CEO of Octavius Industries, Peter Parker's science teacher and partner but eventually becomes the supervillain known as Doctor Octopus, motivated to get his revenge on Norman Osborn and kill Spider-Man. He is also the founder & supreme leader of the Sinister Six.

One of Spider-Man's most famous and notorious foes, Doctor Otto Octavius was a brilliant scientist who invented a set of mechanical arms controlled by a brain-computer interface. After a radiation accident, the four-armed device fused to his body, and he turned to a life of crime.

He was voiced by William Salyers.

Beginnings
In his youth, Otto Octavius was friends with Norman Osborn. Together the two eventually started a business company known as "Oscorp" (inspired by a nickname their fellow students had given them). However, as Norman became more and more obsessed with genetics, the two had a falling out. Eventually Otto left in exchange for a settlement; money to further his research, however, Otto was aware that such a small amount of money for a big project would not last long.

In 1986, a boy named Martin Li came to Oscorp to have a consultation for an unknown medical condition. Unknown to Otto, Norman had the boy injected with the experimental GR-27 serum. The treatment triggered a reaction that resulted in the death of Li's parents and Li receiving superhuman powers. This incident triggered the end of Norman and Otto's relationship and Otto's resignation from Oscorp. Later, Otto began working at Horizon High, forced to rely on grants to support him, where May Parker recommended her nephew Peter Parker to work with him. Hiring Parker solely on May's words, he began teaching the young student, unaware the student was also the secret identity of the superhero Spider-Man.

Loss of Sanity
"We've done enough testing! For the first time in my life I don't feel like a failure. I feel like me!"

- Otto Octavius rejecting Peter Parker's offer to run more tests on the neural interface.

During one of their experiments with robotic arms, Norman Osborn's team shuts down Otto Octavius' and Peter Parker's lab and cuts his grant, the site being declared a safety hazard due to a recent accident. Otto insists his previous safety violations were excused, but Norman reminds him that he was the one who excused it and that Otto's equipment should have been confiscated long ago. Norman insists both Otto and Peter work at Oscorp from then on, but Otto rejects his offer, and Peter does as well.

Shortly after, Otto reveals to Peter that he is suffering from a genetic neurodegenerative disease that is gradually causing his muscles to lower in quality and efficiency. This is a primary running reason for his research and motivations, and his motivation into focusing on mental linkage with his prosthetic designs that take a turn for the worst.

Later, an excited Otto presents Peter four tentacle-like arms attached to his back. The arms are powered by an external prognosis controlled by his brain and can move at the speed of thought. However, Peter discovers that using this method can potentially have severe damage on Otto's psychosis. Otto aggressively ignores Peter's warnings and tells him that this is the first time in his life he doesn't feel like a failure, but Peter is able to talk him down into deactivating the robotic limbs and apologizes to Peter, along with thanking him for his help. After Peter leaves, Otto sees Norman Osborn on a television telling the citizens of New York to cast their vote to him in the upcoming election. In anger, Otto activates his tentacles again and calls Norman a liar, and then destroys the television with one of his robotic limbs.

Attack on New York
"All these years.. All these lies. It's over Norman. Time to give them the truth."

- Doctor Octopus before infecting New York with Devil's Breath.

With his new arms, Octavius attacks both Ryker's Island and the Raft as "Doctor Octopus", releasing all of the prisoners within including Mister Negative, Electro, Vulture, Rhino, and Scorpion, with whom he forms the Sinister Six. He also steals the Devil's Breath from police custody and releases it in Times Square, infecting hundreds of thousands of New Yorkers, including Peter's Aunt May. With the combination of the outbreak and the mass escape of criminals, the city of New York quickly falls into chaos. Peter goes to apprehend his escaped enemies, quickly rounding up Electro, Vulture, Rhino, and Scorpion while Mary Jane searches for the Devil's Breath cure Oscorp is seemingly working on. She breaks into Norman’s penthouse and learns that his son Harry is terminally ill and that the Devil’s Breath was actually designed as a cure for his condition. After discovering his secret lab, Mary Jane learns that Martin Li was one of the test subjects for the Devil's Breath which granted him his powers. This however ended in tragedy as Li had accidentally killed his parents, sparking his grudge against Osborn. Mary Jane soon learns the location of the cure and informs Peter. After convincing Sable that he is trustworthy, Peter heads to the lab and defeats Li, but Octavius arrives and takes both Osborn and the cure, leaving Peter critically wounded.

Final Battle with Spider-Man/Defeat
After arriving atop the Oscorp building, Otto forces Norman to reveal the truth to all of New York, that everything he has is built on lies, but Norman only proclaims that he is better than Otto and is worthless without him, to which Otto responds by dropping Norman off the tower, where he is saved by Spider-Man in a heavily armored suit specifically designed to counter Otto's tech. Spider-Man climbs on the roof and desperately tries to talk sense into him, but Otto refuses and a fight ensues between him and Spider-Man. During the fight, Otto is able to damage Spider-Man's web-shooters, rendering him unable to shoot webs. The two continues fighting on Oscorp's antenna until Otto manages to knock half of Spider-Man's face plate off with his robotic arms. Otto then reveals that he knew who Spider-Man was all along when he calls him "Parker" and despite knowing this, it never stop Otto from trying to kill Peter every chance ge got. Otto insists he won't let Peter win, as destroying Norman and Oscorp means to much to him, but Peter continues fighting, even knocking one of Otto's tentacles off, sending the two falling down the building. Both Peter and Otto manage to cling to the side of the building and continue battling each other. Peter tries to talk Otto down by telling him to think about all the people he's hurting, but Otto says Peter hasn't suffered the way he has and grabs Peter. Peter once again tries to break through to Otto and tries to remind him of the man he was, but Otto tells Peter that the old Otto is gone and that Peter cannot save him. Peter then breaks down, telling Otto that the doctor was his hero and that he worshipped him, and bitterly telling him that he threw all of that away for revenge on Osborn. Otto smugly notes at how Peter is starting to look tired, but Peter claims he isn't tired, just hurt. During the fight, Otto manages to pin Peter down and impale him with his tentacles, saying that the change the world one must make the hardest decisions. Peter, however, is undeterred by his wound, and defiantly fights against the incredible pain, plunging the spear deeper into his chest and grabs Otto and pulls his inhibitor chip form his neck, leaving his extra limbs useless. Otto begins falling down the building, landing in a room inside the Oscorp building along with Peter. Even after Otto begs for Peter to save him from arrest, Peter takes the antiserum and accepts that Otto is beyond saving, and leaves him to be arrested by the authorities.

Aftermath
The amount of cure recovered, however, is too small to save everyone infected and Peter is faced with the choice of either using the limited amount to save Aunt May, who is on the verge of death, or allowing the doctors to study it and mass produce a cure to save everyone else. Peter ultimately chooses the latter and has a tearful farewell with Aunt May, who reveals she already knows he is Spider-Man before passing away. Sable leaves New York to rethink her life choices following her encounter with Peter. Meanwhile, Miles is bitten by a spider that escaped Osborn's personal lab. A funeral is held for Aunt May, who is buried next to Uncle Ben. Otto is seen thrown in the Raft for his crimes. 3 months later, New York has largely returned to normal and Peter and Mary Jane decide to rekindle their relationship.

Quotes
"Parker: We've been focused on limb replacement - connecting nerves at severed extremities, replicating the function of lost appendages. But what if instead, we gave people something they've never seen? Something.. straight from the mind? Unchain all of us from the bodies we've been born with and unleash the awesome power of our minds?"

- Otto Octavius's message to Peter Parker on a recorder.

"Intra-cranial neural network. Neuro-transmission speeds under one nanosecond. Faster than signals travel inside the brain.. Never mind to an external prosthesis. We did it, Peter. No one can take this away from us."

- Otto presenting the mechanical arms to Peter Parker.

"Aleksi. I've followed your career with great interest. The world sees you as a witless dullard. I see as a warrior with a poet's heart. I know you desire freedom from the battle suit you're sealed inside. Help me achieve my goals and freedom will be yours."

- Doctor Octopus' message to the Rhino.

"It's rare for me to admit this, Mr. Gargen-- Clearing your debts was more difficult than I anticipated. You are in arrears to some.. demanding individuals. But once the reservoir job is finished your financial obligations will be finished as well. Otto Octavius is nothing if not persuasive."

- Doctor Octopus' message to Scorpion.

"Adrian, what bitter irony that your miraculous wings should have wrought such horrors on your body. Thankfully, you are now working for me. When our work is settled, the treatment I have developed *will* cure you. You won't shuffle off this mortal coil just yet, my friend."

- Doctor Octopus' message to Vulture.

"Max. When you first conveyed your dream to me I thought you insane. "Pure energy"? (laughs) But as I dove deeper into the problem I discovered a way to give us both what we desire. I promise you when we are done you *will* be pure energy. Or so close to it as to make the difference irrelevant."

- Doctor Octopus' message to Electro.

"Oh, Parker... If you want to change the world you have to be the kind of man who can make the hardest decisions."

- Otto to Peter during their fight.

"Otto: Peter, I saw you as a son. I should have know you'd turn on me, just like all the others. Peter Parker: Turn? I worshipped you! Your mind.. your conscience, wanting to help others, the way you never gave up! Otto: That's because men like us have a duty. A responsibility. To use our talents in the service of others. Even if they don't appreciate it... we have to do what's best for those beneath us. Whether they understand it or not. Peter Parker: No, you're wrong. You were everything I wanted to be! You just... threw it away! Otto: Yes, of course. You're right, Peter. I see that now. The neural interface affected my mind. But I can fix it. We can fix it together... If you'll help me. Peter Parker: I'll do everything I can. I'll make sure you get the best help-- Otto: NO! If they put me away, they'll take my arms! I'll be trapped in this useless body! Please, Peter. That.. wasn't me. You said you'd never abandon me. You promised, remember? And, of course, you'll rest easy... knowing your secret is safe with me. Peter Parker: You do what you think is best, Doc. It's all any of us can. Otto: Peter? Peter Parker: Even when it hurts like hell. Otto: Peter? Where are you going? PETER! PETER!!!"

- Otto's last conversation with Peter Parker.

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Doctor Octopus (Marvel's Spider-Man)