Melissa Davis, All-Star Politician
James Beck, All-Star Movie Producer
- Freudian Excuse: Lost much of his faith in humanity after his sister committed suicide.
- Jerk with a Heart of Gold: Downplayed.
Markus Aslanius, All-Star Thespian
- Took a Level in Jerkass / Tyrant Takes the Helm: Attempts to boss people into not murdering after trial 2. It doesn't work, sending him careening over the Despair Event Horizon.
Elizabeth Barrington, All-Star Historian
Jennifer Zemenovski, All-Star Sandwich Artist All-Star Spy
- Kuudere: Although seemingly cold and uncomfortable, Jenny overcomes her social anxiety and grows much more friendly towards her companions.
- Ooh, Me Accent's Slipping: English is not her first language, and it occasionally shines through.
- Sympathetic Murderer: Only killed Rico as part of his and her Heroic Sacrifice to throw a wrench in Cimber's plans.
Rufus Price, All-Star Latinist
- Bilingual Bonus: Much of his dialogue is littered with Latin words and phrases.
- Break the Haughty: The events of the story serve as this for Rufus, although particularly chapters 5 and 6.
- Heroic BSoD: Rico's death induces one. He doesn't speak for a while, and when he eventually opens his mouth again, he can only speak in Latin.
- Gratuitous Latin: Often, but taken Up to Eleven in the first half of the chapter 6 trial, due to Rico's death.
Rico de Naranjas, All-Star Marathon Runner
- Break the Cutie: The Shopping Spree of Mutual Killing, as a whole.
- Heroic Sacrifice: Allows Jenny to kill him so that she can pass on vital information to the others before she is killed.
Delilah MacDonald, All-Star Cosmetologist
Francesca Maysworth, All-Star Tutor
- The Alcoholic: Despite her youth.
Theo Cook, All-Star Cartographer
- Dark Secret: He killed a woman in the past, in order to save his own life.
- Nice Guy: His defining attribute. Monobear even lampshades this.
- Beware the Nice Ones: Is the only culprit in the series thus far to kill two people at once. Granted, one of those deaths was an accident, while the other was killed for being a witness to the crime. But he also murdered an innocent woman in his backstory in order to save his own skin.
- Star-Crossed Lovers: With Jordan. Their relationship essentially ends when he's outed as Cody and Markus's killer.
Cody Cameron, All-Star Waterskier
- Even the Guys Want Him: Austin, although his sexuality is left ambiguous.
- Mr. Fanservice: An In-Universe example.
- Surfer Dude: Exploited, to an extent, as he plays up this persona in order to appeal to girls.
- Totally Radical: Much of his dialogue comes off as this.
Jordan Koulibagh, All-Star Golfer
- Driven to Suicide: Possibly a subversion, but she was in the right headspace to kill herself at the time, and if it was an accident she didn't really try to survive.
- Star-Crossed Lovers: With Theo. It ends tragically for both of them.
- My God, What Have I Done?: Her last action was to frame Rufus for her suicide. Her last words are wondering if Theo would forgive her for that.
Randolph Luther, All-Star Monk
- Beware the Quiet Ones:
- Exact Words: Sure, he's a monk, but he never said he was a Buddhist monk. Rather, he's a cultist.
- Omnicidal Maniac: Sort of. Zerostin cultists believe peace will only come with oblivion, but they view that as universal Nirvana and he doesn't actually want to force people to choose nonexistence.
Lily Smith, All-Star Kawaii
- Break the Cutie: Two of her closest friends, Elizabeth and Jenny, both resort to murder.
- Gratuitous Japanese: As is expected from her title.
- Verbal Tic: "Desu!"
Austin Fitzpatrick, All-Star Idle
- Ambiguously Gay: His sexuality is left deliberately vague.
- Brilliant, but Lazy: When he puts his mind to it, he has quite a gift for speaking. It's his words that pull the other students out of their despair during the final trial.
- The Hero / Messianic Archetype: Ultimately takes up this role by the end of the story.
- Sleepy Head: Usually asleep or getting that way, particularly when he's upset. Eventually realizes that this is a sign of depression.
Taylor Erzen, All-Star Lucky
- Alpha Bitch: Downplayed. She's not really mean so much as snarky and immature, believing that absolutely nothing bad can happen to her and if she keeps up the popular kid act, everything will turn out fine. Eventually admits she's so used to things working out for her she never really grew up.
- Brainless Beauty / Dumb Blonde
- Born Lucky: As befitting her title.
- Minor Injury Overreaction: Deconstructed; her reaction to Monobear forcing her to change outfits quickly turns from the merely embarrassed to actual Sanity Slippage, to the point where Lily starts following her around to protect her from herself.
- Stepford Smiler: There's hints from the beginning that she's not as cheerfully ditzy and carefree as she likes to believe she is.
The Mastermind, Cimber Tillius, former All-Star Logician
The person behind Monobear, who trapped the sixteen students in the Mall of Monomerica and forced them to take part in the Shopping Spree of Mutual Killing. A ruthless militant dictator who took control of the remnant of the United States after the Tragedy occurred. As a member of All-Star Despair, Cimber seeks to perpetuate the incident and spread despair across the globe.
- Jerkass: They don't even bother with Monokuma's normal Faux Affably Evil, they're an unending tide of insults and condescension.
- Statistically Speaking: Likes to throw in mathematical references to their guilty announcement. This is the first hint to his identity and talent.
- Smug Snake: Clearly considers the All-Stars dumber than they are, and never passes up an opportunity to gloat about it.
Rina Lupa, All-Star Psychologist
A stern, no-nonsense sort of girl who nonetheless cares deeply for her sister.
- Polar Opposite Twins: With Melody.
Melody Lupa, All-Star Twin
In total contrast to Rina, Melody is an outgoing girl with a sunny disposition. Nothing matters more to her in the world than her twin sister. One of the victims of chapter 2.
- Polar Opposite Twins: With Rina.
Eric "Sparky" Armstrong, All-Star EngineerAn awkward, but endearingly so, boy with a babyface and a talent for all things electrical.
Ed Bell, All-Star ClownA stony-faced young man with unappealing hygiene problems and a deadpan voice. The victim of chapter 1's murder.
Cassandra Simone, All-Star DivinerA loud-mouthed young girl whose talent allows her to see into the past, present and future.
Hunter Zaroff, All-Star HunterA serious and intimidating young woman, skilled with all kinds of weaponry.
Shu Nguyen, All-Star LawyerImmoral and affluent, Shu is the sort of lawyer people would describe as a complete slimeball. His nature as a Control Freak also put him at odds with his fellow students. One of the culprits of chapter 2, and the victim of chapter 3.
- Amoral Attorney
- Jerkass: He exploits the power he holds over those weaker than him however he sees fit.
Rosa Bellamy, All-Star MaidAlong with her revealing outfit, Rosa's looks and personality do nothing to refute the seductive maid stereotype she so embodies. One of the culprits of chapter 2.
Maxwell Carswell, All-Star MathematicianA quiet, unassuming boy, who'd prefer to sit down alone with his headphones than attempt to make conversation with his peers. His genius intellect make him an invaluable asset in solving the mysteries that the students face in their time at Camp Monomono.
- Ambiguously Brown
- Ambiguous Disorder: Rina believes he may be autistic, but her suspicions have yet to be confirmed.
- Headphones Equal Isolation: Although he never actually listens to music with them. They just discourage people from trying to talk to him.
Billy Cosdon, All-Star NerdAs hyperactive and awkward as his title would suggest, Billy has one of the highest levels of energy out of the entire group. One of the victims of chapter 2.
- Verbal Tic: "Kapow!"
Eugene Ford, All-Star LuckyAn energetic and confident boy who's proud of his status as his class's All-Star Lucky.
- Bi the Way: As implied by some of his dialogue.
- Totally Radical: In a similar way to Cody and Austin, from the previous installment.
Ruby Jain, All-Star EquestrianBeing both elegant and well-spoken, Ruby presents a confident persona. She enjoys horse-riding as much as her title implies.
Claude Marley, All-Star PoetA mellow, laid-back young man with a gift for verse and rhyme. Often accompanies his poetry with his ukelele.
John Matthews, All-Star CheerleaderIn spite of his girlish costume, John is little more than a thug that won't hesitate to throw his considerable weight around if he must. The culprit of chapter 3.
- Alas, Poor Villain: He accidentally murders his best friend. Or rather, his only friend, given how he treats his companions.
- The Dragon: To Shu.
- Mr. Fanservice: Although most people drawn to his appearance are repulsed by his personality.
- Real Men Wear Pink: His everyday outfit is nothing more than a pink skirt and matching top.
Reggie Nipohc, All-Star PianistA soft-spoken and seemingly delicate girl with a talented ear.
Tina Wolfgarth, All-Star OCDA neurotic girl with such a high level of obsessive-compulsive behavior that Success Summit saw fit to give her a fitting title. The culprit of chapter 1.
- Super OCD: Her "talent".