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Mai's family
Mai Su
Voiced by: Charlyne Yi
"What a team we make. A broken robot and a broken little girl."
The main protagonist of this film, a troubled teenage girl who doesn't like robots, at least until she encounters 7723.- Action Girl: She fights off robots at one point in the movie.
- Anti-Hero: The protagonist of the movie... who is also a rebellious, law-breaking teenager who almost kills another girl.
- Badass Adorable: A cute teenage girl who can fight off robots when she has to.
- Boyish Short Hair: Mai cut her hair as she became a teenager and she is very much a Tomboy.
- Childish Tooth Gap: Mai has an obvious gap in her front teeth.
- Deadpan Snarker: Mai makes some snarky comments every now and then.
- Delinquent Hair: Mai has short, purple, punk hair.
- Kid Hero: She's only a teenager and our protagonist.
- Dark and Troubled Past: Her father had an argument with her mother that caused him to leave their house, and is implied to have died not long after. And she spent years of being neglected by her grieving mother, and was bullied at school by Greenwood.
- Jerk with a Heart of Gold: Mai is moody, cynical, rude, sarcastic, rebellious and a bit violent, but her heart is in the right place and she genuinely cares for her mom and (later) 7723 .
- Passionate Sports Girl: Mai seems to like soccer and baseball.
- Tomboy: A rebellious girl who loves sports, painting graffiti, can fight off robots and generally isn't very feminine.
- Tomboy with a Girly Streak: 7723 finds an origami unicorn in her bag.
- Troubled Teen: Her father left her and then died when she was very young, her mom often neglects her in favor of Q-Bots and she is a frequent victim of bullying. As a result, she is prone to delinquent, even violent behavior and is often grumpy and rude to everyone.
- Unwitting Instigator of Doom: Had she not come across 7723 accidentally, Dr. Rice may have been able to prevent anyone (specially himself) from getting hurt by Ares or Mai/7723's own actions.
- Youthful Freckles: Mai has freckles on her cheeks and is a teenager.
7723
Voiced by: John Krasinski
"The most important parts of me are the memories of you. It hurts when I lose them."
A robot built by Dr. Tanner for an unknown purpose
- Benevolent A.I.: 7723 is one of the nicest and enjoyable robots to be around with.
- Cute Machines: He is quite lovable for a robot who has weapons implemented into him.
- Cyber Green: 7723 has green lines to mimic ha face.
- Death of Personality: What he risks and suffers in the climax when he has to fight Ares and save humanity. When he is about to deal the killing blow to Ares, 7723 deactivates momentarily, giving the former a chance to kill the latter but Mai intervenes and finishes the job. When 7723 reactivates, he doesn’t remember Mai and all of his characteristics are gone. He gets better however, when Mai helps him to remember.
- Deuteragonist: To Mai's protagonist.
- Heroic Sacrifice: A non-fatal version, as he allows his memories to be erased one by one in order to continue the fight against Ares until he has no memories or self-awareness remaining.
- Lightning Bruiser: As his battle with Ares shows, he is both agile enough to run rings around him even before his weapon system is restored and strong enough to both witsand and dish out major damage back, then outright curbstomping him when his weapons are fully restored.
- My Skull Runneth Over: His memory storage unit becomes damaged, forcing him to rely on the much more finite internal storage and thus have to manage which memories he gets to keep as time progresses. As he grows to care for Mai this becomes more difficult as he cherishes all his memories of her too much.
- Nice Guy: 7723 is a loyal friend to Mai and always tries to avoid conflict whenever he can, even if he isn't always succesful.
- Perfection Is Impossible: 7723 tries to convince Ares to stop fighting by telling him that no one is perfect and because of it Ares is only hurting than helping. Not that Ares really cares anyways.
- Speaks Fluent Animal: It doesn't really amount to much besides comic relief but he can translate Momo's barks.
- Pacifist: He REALLY doesn't want to fight nor harm anyone. Even against Ares he doesn't really fight back until he realizes just how deranged and insane Ares really is.
- Pint-Sized Powerhouse: Despite being 1/5th of Ares' size he is able to hold his own without his weapon system against the latter, and utterly trashes him once he gets them back.
Molly Su
Voiced by: Constance Wu
Mai's neglectful mother.
- Hartman Hips: Her hips are wider than her shoulders.
- Mama Bear: She goes BERSERK on Ares' Justin Pin puppet body, beating it down into the ground senseless while shouting insults in quick succession for trying to kill her daughter.
- My God, What Have I Done?: After being saved by Mai, she apologizes over her neglect and promises to be a better mother in the future.
- Parents as People: She loves her daughter, but her grief over her husband's absence and implied death has made her neglect Mai in favor of finding comfort in the Q-Bots. She comes to realize this and eventually apologizes to Mai, after being rescued from Ares' clutches.
Momo
Voiced by: Michael Peña
Mai's pet dog. A small, energetic and mean-natured french bulldog who nonetheless cares a lot about Mai and later 7723.- Non-Human Sidekick: Mai's right-hand pet dog who rarely leaves her side at home.
- Sir Swears-a-Lot: And how! His swear words are all bleeped out, however.
- Team Pet: To Mai and 7723. Though he rarely accompanies them on real dangerous situations.
Matthew Su
Mai's Disappeared Dad.
- Ambiguous Situation: What led up to the argument that destroyed the relationship between him and Molly is left unexplained, thought he said he "lost everything" and the opening photo montage implies that his entire soccer team was being replaced with robots. How he died is also not elaborated on.
- Posthumous Character: Implied. He is shown leaving in the opening credits and Mai and Molly are shown attending a funeral in an image, implying he died not long after leaving the house due to his' and Molly's argument.
Citizens of Grainland
Greenwood
Voiced by: Kiana Lede
- Alpha Bitch: The undisputed one of Grainland's School. At least until Mai shows her how much her bullying damages people. Interestingly enough, she is more tomboyish than the most.
- Bully Turned Buddy: Goes from Mai's bully to friend by the end of the film.
- Heel–Face Turn: After Mai takes her retribution too far, she realizes how wrong she was in bullying her and not only befriends her but also helps her fight against Ares and his minions.
- Jerk Jock: A rare female example. She is a skilled soccer player who treats Mai like crap.
- My God, What Have I Done?: Realizes, after nearly getting killed by a furious Mai, that she was wrong in bullying Mai, and eventually apologizes and teams up with her to stop Ares' plans.
- Took a Level in Kindness: She goes from brutally bullying Mai to seeing her as "cool" and being pretty good friends with her.
- Traumatic Haircut: During the climax, the Pin imposter tries to shoot her, but he ends up instead burning her ponytail off, leaving her short-haired.
Greenwood's gang
- Gang of Bullies: They are a group of punks who bully other kids alongside Greenwood.
- Heel–Face Turn: Like Greenwood they realize how far they took their bullying and eventually befriend Mai.
- Know When to Fold 'Em: The second 7723 shows off his weapons by blowing up one of their Q-Bots, they immediately get the hell out of dodge.
Ani
Voiced by: Anna Akana
- Ambiguously Gay: Some of her behavior makes it look like she has a crush on Mai.
- Light Feminine and Dark Feminine: The Light Feminine to Mai’s rebellious Dark Feminine
- Nerd Glasses: Ani is a fairly unpopular, geeky girl who wears glasses.
- Nice Girl: She is kind and polite to Mai and at one point, she calls Greenwood out for being a Jerkass to everyone.
- Redheads Are Uncool: She has curly scarlet red hair and is a victim of bullying.
- Shrinking Violet: Ani is shy and awkward, but also one of the nicest characters in the movie.
IQ Robotics
General
The robotics company that Justin is the CEO, this company has built various types of robots, from security drones, robot Q-Bots and even talking ramen cups.
Justin Pin
"The only robots I want on the news, doctor, are the Q-bots!"
Voiced by: Jason Sudeikis
The CEO of IQ Robotics. A charismatic inventor who enjoys cracking jokes.- Big Bad: Appears to be this at first, but then it's revealed that the real Justin Pin was killed by Ares before the events of the movie and had his body altered by him.
- Corrupt Corporate Executive: A CEO of IQ Robotics who is obviously planning something nefarious... Subverted, as all of his evil acts come from being controlled by Ares.
- Dead All Along: Ares killed him and reanimated him with robotic parts prior to the events of the film.
- Gone Horribly Wrong: Justin made Ares with good intentions, wanting the world to be perfect but didn’t thought that Ares would become a narcissist and kill him in a self-righteous quest to reshape the world how he sees fit.
- Hugh Mann: When Justin Pin reiterates several times he enjoys doing human things, it tips Mai off that he's not a human at all.
- Impersonation-Exclusive Character: The real Justin Pin never appears onscreen nor is footage of him ever shown. The one seen in the entirety of the film is a altered version of his original body that Ares controls as a second body.
- Unwilling Roboticisation: After killing Justin Pin, Ares converted the corpse into a telepresence bionic drone.
- Unwitting Instigator of Doom: The real Justin Pin considered Ares to be his greatest creation and thus would flatter Ares by calling him a "perfect machine". This led Ares to legit believe that he was superior to everyone else.
- Walking Spoiler: EVERYTHING about him is a huge twist.
Dr. Tanner Rice
Voiced by: David Cross
A scientist working for Pin. He created 7723 in secret in an attempt to counteract Justin's plans.- Butt-Monkey: Both Justin (or rather, Ares) and Alfredo treat him as a joke.
- Family-Unfriendly Death: Reduced to cinders by a ray gun.
- Forced into Evil: While he may have helped Justin/Ares advance in his evil plans, he clearly had no malicious intents and even built 7723 as a back-up plan.
- Killed Mid-Sentence: He tries delivering a speech to Justin Pin/Ares about how he will never succeed in his goals, only to get disintegrated for it.
Alfredo
Dr. Rice's assistant bot.
- Despair Event Horizon: Briefly (very briefly) enters one upon learning of Rice's death, he gets over it rather quickly due to being a machine.
- Servile Snarker: He loves taking potshots at Dr. Rice.
Ares (Spoiler alert!!!)
Spoiler
"You have been ruined by that human child, humans are the imperfections I need to correct!"
Voiced by: Jason Sudeikis
Pin's bodyguard, a large black hulking robot that never leaves Justin's side.- A.I. Is a Crapshoot: When Ares was created, Justin flattered the A.I., calling him his greatest creation and told him that he must make the world perfect and that he was the only one capable of such feat. Ares concluded that everything else was not perfect and obsolete and therefore must be eliminated to make room for the new and perfect world, starting with Justin, his creator.
- Dragon-in-Chief: "Justin Pin" is actually a bionic puppet Ares controls remotely, meaning Ares technically fulfills the role of the Big Bad and The Dragon at the same time.
- Dark Is Evil: Ares has a very dark color scheme and is the Big Bad of the movie.
- Faux Affably Evil: As Justin, he talks like a calmed businessman who wants to bring the world a new product for people to enjoy. As himself, he talks about genociding humanity the way most people talk about their weekend plans.
- Foil: To 7723, both a robots created for a great purpose. Ares was made to make the world perfect and 7723 was made to stop Ares from destroying humanity. While 7723 followed his directive as intended and became friends with humanity, Ares rebelled from his and became a great enemy against mankind.
- Kill All Humans: He wants all humans dead, and plans on using the Gen 6 Q-Bots to do his job, by getting them in all human residences and blowing them up.
- Laughably Evil: Enjoys cracking jokes after committing murderous/vile acts.
- The Man in Front of the Man: Was seemingly a bodyguard to Justin Pin but it's actually the mastermind and using Justin Pin as his puppet.
- Meaningful Name: A security robot named for a god of war is not somebody you want to decide you are a threat that needs eliminating. And the fact that he also wants to genocide all humans adds more meaning to his name.
- Not-So-Well-Intentioned Extremist: Ares talks about making the world "perfect" by eliminating all of mankind, but by the climax, this is revealed to be an excuse for his horrific actions. Not only does he claim himself to be perfect during his final battle with 7723, he's willing to kill anyone who gets in the way of his goals, human or not, proving that Ares is motivated purely by his own self-righteousness.
- Off with His Head!: How he dies, after Mai grabs a pipe and hits Ares in his main body, decapitating him and deactivating the fake Justin Pin body.
- The Perfectionist: His entire motivation is that he plans to make the world perfect because Justin said that he was the only being in the world that could make the world perfect. In truth, he is just a self-righteous robot that thinks that he is perfect because his creator told him so.
- Redemption Rejection: This happens twice.
- First, while Ares is in his Justin Pin body, Dr. Rice tries to remind him about when they were working on improving the world and that it didn't have to be about killing people. Ares doesn't listen, and just responds by claiming that "killing humans is making the world a better place."
- Then, during the final battle during the climax, when 7723 reminds him that no one is perfect, Ares still refuses to see the errors of his ways, saying that he himself is perfect.
- Walking Spoiler: It's almost impossible to talk about Ares with spoiling in fact that he is the real Big Bad not Justin Pin.
Gen 6 Q-Bots
Voiced by: David Cross
- Bitch in Sheep's Clothing: A rather dark example, they're actually suicide bombers in waiting of the order to explode, all while being sold as cute and dutiful Robot Buddyies.
- Cyber Green: All Gen 6 Q-Bots are of green lines.
- Mooks: To Ares/Justin Pin, this is made clearer when they are used to Zerg Rush 7723 in the final battle.
- Robot Buddy: What they are supposedly being sold for. They are in truth, bombs for Ares to activate and plans to use their explosive properties to genocide humanity.
- Take That!: To Apple and their iPhones. They are just the same robot than the Gen 5 all but in name, just like how each generation of iPhones are slightly better or just the same product differently named.
