Doctor Octopus (Spider-Man: Into the Spider-Verse)

"Peter B. Parker: Can I assume that your friends call you Doc Ock? Doctor Octopus: My friends actually call me Liv. My enemies call me Doc Ock."

- Doctor Octopus to Spider-Man.

Olivia Octavius, also known as Doctor Octopus, is one of the secondary antagonists (along with Prowler) of the 2018 Academy Award winning animated superhero film Spider-Man: Into the Spider-Verse. She is an evil scientist working for Wilson Fisk.

She is voiced by Kathryn Hahn, who also voiced fellow Sony Pictures Animation antagonist Ericka Van Helsing in Hotel Transylvania 3: Summer Vacation.

Personality
She initially appears as a cute and absent-minded professor, but in reality, she's a sadistic mad scientist. She enjoys inflicting pain on others proven she eagerly waits for alternate Peter Parkers to disintegrate out of existence.

Appearance
Olivia has shaggy hair tied into a large bun and wears green goggles. She wears a green metal and plastic suit around her body with four octopus arms attached to it. Unlike the original Doc Ock whose octopus arms are metallic, hers is translucent instead with visible wiring and machinery inside.

Background
Olivia Octavius is the CEO of Alchemax, Wilson Fisk's assistant, and the head of his super-collider project. She used to be friends with Peter Parker's Aunt May.

Conflict with the Other Spider-Men
After a battle between Spider-Man and Kingpin's henchmen which resulted the super-collider exploding and Kingpin killing an injured Spider-Man in the process. However, the machine's effects had also caused other Spider-People to appear. An older, more disheveled version of Spider-Man from an alternate universe is summoned due to Spider-Man's DNA coming in contact with the Super Collider, and he and Miles decide to team up to stop the super-collider and return the former to his universe. Going to Alchemax to create a new version of the USB drive (which had previously broke), Spider-Man leaves Miles behind while he infiltrates the building, however, Miles decides to come along upon seeing Kingpin and Tombstone enter the building. Kingpin begins to pressure Olivia into finishing the super-collider, while, at the same time, Miles and Spider-Man begin to take the information they need. She walks in on Spider-Man and realizes that he is from another universe. She restrains him in a chair and discovers that staying too long out of his home dimension causes his cells to degenerate. Olivia reveals herself to be "Doctor Octopus" and attacks Spider-Man. Miles steals the computer and Spider-Man follows him which leads to them being chased down by her and the Alchemax scientists. Doctor Octopus is close to getting the computer back before Spider-Gwen saves them and they escape. When Doctor Octopus returns without the monitor, he is enraged at her for failing, though she insists that the appearance of more Spider-People only confirms that the super-collider will work and that he will be able to summon as many alternate versions of his family as he wants once it is working again. Later, after Miles finds out that his uncle Aaron is really the Prowler and escapes from his apartment, Prowler tracks him down and leads Kingpin and all of his henchmen; Doctor Octopus, Tombstone, and Scorpion to Aunt May's house, where they and the other Spider-Men summoned by the super-collider (Spider-Man Noir, Peni Parker and SP//DR, and Spider-Ham) start to fight for the USB drive which destroys the house.

Final Battle and Unknown Fate
That night, Kingpin hosts a gala ostensibly in honor of the fallen Spider-Man, even inviting his widow Mary Jane Watson to the affair, but in reality only uses it as a distraction while his scientists finish rebuilding and reactivate the super-collider to summon an alternate version of Kingpin's family. The Spider-People (planning to have Peter B. Parker sacrifice himself to return the others to their dimensions without Miles trying to interfere) manage to sneak into the affair and make their way below Fisk Tower to destroy the super-collider, but Doctor Octopus, Tombstone, Scorpion, and Kingpin's mobster henchmen ambush them. The Spider-People are overwhelmed until Miles (in a new Spider-Man costume and now fully embracing his role as Spider-Man) uses Doctor Octopus's tentacles against her in invisibility mode. The Spider-People realize that he can now send them back but Kingpin turns up the accelerator. Doctor Octopus battles Miles, Spider-Man and Spider-Woman but the super-collider's effects of pulling things in causes a truck to run over Doctor Octopus away, to Spider-Man's horror.

It is completely unknown what happened to Doctor Octopus afterwards, considering that she wasn't seen getting arrested along with Kingpin and his other henchmen at the end of the film, but it can be implied that if she survived the truck's impact, she was most likely sent to another dimension where she would eventually die, or that she was indeed killed by the impact and her corpse was sent to another dimension to eventually fade away. At very least, if she didn't die by that, Doctor Octopus possibly escaped to fight another day, was arrested off-screen, or was either sucked into the portal or killed by the super-collider explosion, with either due to being unable to escape from the super-collider before it exploded.

However, in the extended cut of Spider-Man: Into the Spider-Verse, Doc Ock is revealed to have survived getting hit by the truck and wakes up as the portal is collapsing. She then says "The power of the multiverse in the palm of my hand.", before jumping into the portal. Her fate is nevertheless still unknown.

Quotes
"Uh, Mr. Fisk!"

- Olivia Octavius's first lines.

"--Look at this data. I know you can't really understand it, but these are really good numbers--"

- Doc Ock explaining the data to Kingpin.

"Uh, Mr. Fisk. If we fire again this week, there could be a black hole under Brooklyn. You see this? And this? This is multiple dimensions beginning to crash into each other."

- Doc Ock to Kingpin about the machine's effects.

"I'm not refusing-- (Kingpin: No more excuses!) --I just need some more time."

- Doc Ock to Kingpin about needing time.

"Spider-Man? (Peter Parker: Oh, hey. Didn't see you there...) Wow. Okay I'm kinda freaking out right now. I mean, you're supposed to be dead. (Peter Parker: Surprise.-- Whoa!-- OK that's a no-no, we don't like that--) This is fascinating."

- Doc Ock discovering a different Peter Parker in her office.

"(Peter Parker: --OK, that's m' face--) An entirely different Peter Parker. OK, a little bit of a gut, perhaps from dimensional warping. (Peter Parker: Oh yeah, yeah, yeah. I was way flatter before I warped.) Travel through the multiverse appears to have deteriorated... (Peter Parker: --How old are you? You don't look a day over 35!) This might pinch a little. (Peter Parker Ow! Ow, ow!) I know, I just need to get these samples. (Peter Parker: Yeah, OK.) Wow. Just complete cellular decay. I've never seen anything like this. And obviously you've been glitching. (Peter Parker: Glitching? No. Why would you even say that.) If you stay in this dimension too long, your body’s going to disintegrate. Do you know how painful that would be, Peter Parker? (Peter Parker: Uh, I don’t know.) You can’t imagine. And I, for one, can’t wait to watch. (Peter Parker: What did you say your name was?) Doctor Olivia Octavius."

- Olivia examining the alternate Peter Parker before revealing her true nature.

"There’s three actually. No, this is good, this is very, very good. It means you get what you want. It means my collider works. All we have to do is kill a couple spiders and the collider will bring your family back. As many families as you want."

- Doc Ock to Kingpin.

"Nice to see you again, Peter."

- Octavius to Peter.

"Olivia: Cute place! Real homey. (Aunt May: Oh great, it's Liv.)"

- Olivia as she enters the house.

Trivia

 * Olivia Octavius was voiced by Kathryn Hahn, who also voiced another animated villain Ericka Van Helsing from Hotel Transylvania 3: Summer Vacation, which was released 5 months before Spider-Man: Into the Spider-Verse. Ironically, both Octavius and Van Helsing are Sony Pictures Animation villains and secondary antagonists.
 * In the Ultimate comics, Doctor Octopus was a male villain, while in this film, Doctor Octopus is female.
 * This version of Doctor Octopus's tentacles are soft robots, rubber machines that are moved and used to grip things by pumping air into them, while the other versions of Doctor Octopus's tentacles are metallic. Given that she's tall and slender in contrast to the short and stocky incarnations of Doctor Octopus, using lightweight materials is a more practical option for her.
 * It's possible that Olivia is a successor to her relative Otto Octavius and seeks vengeance on Spider-Man (as it's implied that several events from the Raimi movies happened in this universe - including the death of Otto Octavius).
 * Olivia is the third female version of Doctor Octopus, after Carolyn Trainor in the comics and Serena Patel in Spider-Man: Shattered Dimensions.
 * The male version of Doctor Octopus was fighting Gwen while she was being sent into the portal.