View the complete cast of Astral Cabal: Black.
- Blush Sticker
- Cool and Unusual Punishment: If students fall asleep anywhere outside their dorms, they'll be punished, and not with an executionrather, they'll be sentenced to a "time out".
- Elmuh Fudd Syndwome
- Girlish Pigtails
- Hair Decorations: Wearing rabbit ears.
- Hair of Gold, Heart of Gold
- Innocent Blue Eyes
- Insistent Terminology: In Astral Black, Usami goes by Sea Savior Girl ☆ Usami.
- Non-Uniform Uniform: She's wearing a sailor's uniform, but it's a more casual than usual version of the outfit.
- The Power of Friendship
- Pungeon Master: As one example: "F-Firstly, Id pike to thank you all for the opportunaty of letting me serfish you !"
- True Blue Femininity: Wearing a white and blue sailor's uniform.
- Big Brother Is Watching
- Break Them by Talking
- Evil Has a Bad Sense of Humor
- Evil Laugh
- Faux Affably Evil
- Hanging Judge: Unlike in the original Dangan Ronpa games, Monokuma is willing to execute even a wrongfully convicted student.
- Hostile Show Takeover
- Just Following Orders: He seems to imply this during a conversation with Mai following her question as to why the class deserve this game, stating that he only does it because it's his job and there's 'no going against it'.
- Red and Black and Evil All Over
- Senseless Sacrifice: Insists that those who have died and will die will not fall under this.
- The Sociopath
- Torture Technician: He executes the murderers in gruesome, personalized ways, after all.
- Will Not Tell a Lie
Alexis Altamira Laia Altamira
SHSL Majorette SHSL Novella Writer
- Cool Pet: Alexis has a pet chinchilla.
- Everything's Better with Spinning: She's very skilled at baton-twirling.
- Hair Decorations: Wearing a ribbon in her hair.
- Jack-of-All-Stats: Alexis sacrifices neither technical moves nor grace, keeping a steady balance of each trait in each contest.
- Passionate Sportsgirl
- Parrot Pet Position: Her ID card depicts Alexis with a chinchilla on her shoulder.
- True Blue Femininity: Alexis is wearing a blue coat.
SHSL Dance Instructor
- Be Yourself: Became a SHSL Dance Instructor by following her passion.
- Bunnies for Cuteness: During chapter 1's trial, Aomi wears a green sweater with a picture of a white bunny on it.
- Dance Instructor Sensation: The tabloids went crazy talking about Aomi, which is how Hope's Peak Academy noticed her.
- Dancing Is Serious Business: She's Super High-School Level talented at being a Dance Instructor.
- Follow in My Footsteps: Aomi followed in her parents' footsteps, becoming a dance instructor at her family's music studio.
- Paparazzi: The tabloids went crazy talking about a high school student teaching people how to dance.
- Popularity Power: A positive example of this trope, as Aomi became so skilled at teaching dance to others that she became insanely popular, with tabloids and even a famous Idol talking about how good her dance lessons are, which in turn helped Hope's Peak Academy notice Aomi and accept her into the school.
- Brutal Honesty: Chie takes this tack with Valentina when Valentina is "too dense", in Chie's words, to know that someone has died and the victim is not "asleep". Then Chie wonders if Valentina has ever watched a murder show before or played a game involving murder.
- Classical Music Is Boring: Chie has this opinion of classical music; instead, she composes music that is highly common on popular radios.
- Curtains Match the Window
- Meaningful Name: Her first name, "Chie", means "wisdom", a fitting name for a person who writes the music and the words for others' songs. Her last name, "Ueno", means "upper field", a fitting name for someone with a Super High-School Level talent, thus putting her in the "upper field" of composers.
- Nice Hat
- No-Sell: Chie's reaction to the chapter 2 motive's threat to reveal everyone else's dark secrets. While Chie's secret could ruin her capacity to perform in her field if it was released publicly, Monobear is only threatening to reveal secrets "within the class", so even if Chie's secret did get beyond that, it would just be treated as a "rumor" and dismissed.
- You Gotta Have Pink Hair
- Ace Pilot: His title.
- And You Thought It Was a Game: After the first execution, he realises that the mutual killing is very real.
- Call-Back: In chapter 1's trial, Dimitri asks if maybe the culprit has an incriminating injury but covered it up with makeup, like in the movies. Dimitri is played by the same person who played Chiemi in Doubt Academy Alpha, and in Alpha's second trial, the true culprit attempted to hide an incriminating injury using makeup.
- Cluster F-Bomb: Drops one towards the end of chapter three's trial, screaming about how he didn't kill Hinako and Hijiri.
- Cruel and Unusual Death: Dimitri is chapter 3's murderer, but he is caught and executed. He is placed in a plane in a glass cage, and Monobear appears piloting an enemy plane. Because of the glass cage Dimitri can't maneuver away, so he has to shoot Monobear down. But more Monobears appear in more enemy planes, and even though Dimitri shoots them all down, even more appear after that, until finally Dimitri runs out of ammo. The Monobear planes clip the wings of Dimitri's plane, causing the plane to crash onto the floor of the glass cage and kill Dimitri.
- Deliberately Cute Child
- Fanservice: Dimitri briefly takes off his shirt in chapter 1's trial to prove he has no incriminating scratch marks, and then very quickly puts his shirt back on.
- Farm Boy: As stated in his short bio.
- Funetik Aksent: Dimitri is from Austria, and sometimes he has a slight Austrian accent when he speaks. For example, "Ace-sa I mean, Keichi-kun is right, ja? We s-shouldnt fight! I-in fact, please dont fight. Were trying to solve this together, ja? Im not saying go be best of friends or anything, but all ze bickering it wastes time!"
- Older Than They Look: He's 16 but looks like he's 12.
- Parental Abandonment: Lives with his grandpa, but where are his parents? Who knows. We find out in Chapter 2 that his parents were both famous thieves from Russia who left Dimitri, but the other details are unknown.
- Shout-Out: When the class is giving handwriting samples in chapter 2's trial, Dimitri writes on a pad containing a character named "Eiji Oshirou". This is because Dimitri is played by the same person who played Eiji in Doubt Academy White.
- Youthful Freckles
SHSL Camp Counselor
- But Not Too Foreign: Hans is half-Japanese, a quarter Indian, and a quarter American, because of his Japanese father and 3rd generation Indian-American mother.
- Cruel and Unusual Death: Hans is the first murderer, but he is caught and executed. He is placed at a camp in a "trust exercise" with "Monobear children", but the Monobears won't listen to his commands and keep hurting him as they pass by. He finally tries the "swinging log exercise", but is pushed off the log after passing the third Monobear, and he is then "hung" by the cord of friendship bracelets.
- Fanservice: During chapter 1's trial, Hans takes off his shirt to reveal that he has a lot of freckles on his skin, but no bruises or cuts.
- Friend to All Children: Part of what contributed to his success at being a camp counselor.
- Hair Decorations: A flower crown.
- Irony: Hans describes whoever killed Hoshiko in chapter 1 as someone that Hoshiko trusted, as well as a fantastic liar. This is a pretty good description of Hans, as he turns out to be the murderer.
- Shout-Out: A completely unintentional example given that each culprit is chosen using a randomizer, but Hans is a friendly person whom a young woman, in this case Hoshiko, trusted, and Hans used that trust to kill her, which is what another character named Hans tried to do to Anna (though in that character's case he failed) in Disney's Frozen movie.
- Sympathetic Murderer: After first wounding Hoshiko, Hans realised he couldn't let her suffer, and gave her an overdose of drugs to kill her in a less painful way.
- The Leader: An aspect of his talent, Hans often has to organise and lead large groups of children.
SHSL Game Show Champion
- Dark Horse Victory: In-universe. This is how he earned his Super High School Level title of Game Show Champion, as it wasn't common for an "unremarkable high school student" to win a game show.
- GameShows: Hijiri is Super High-School Level talented at winning these.
- Mind Screwdriver: We get to see what's written on Hijiri's "darkest secret motive card" in chapter 2. It reads, "Hijiri Tsutsui has Antisocial Personality Disorder".
- No-Sell: The chapter 3 "motive" has no effect on Hijiri. As the narration of his post clarifies, it's not that he hates his family, it's just that he doesn't care one way or the other.
- The Spock: Hijiri says, without emotion, that the victim of chapter 1, Hoshiko, partially caused her own death by being too naive and trusting and going about by herself. His calculating nature causes the class to suspect him of the murder, but as he points out, his calculating nature is precisely why he couldn't have done it: after all, the "motive" was to avoid everyone else disappearing. That avoidance could be achieved by murdering someone, but as Hijiri says, that's thinking only one step ahead. Hijiri always thinks twenty steps ahead, though; the same result could also be achieved by Hijiri simply staying back and letting someone else commit murder first.
- That said, he does not take kindly to being called an "asshole", and when called such in chapter 1's trial he heatedly explains that his classmates cannot understand him, because he does not wish to be another idiotic human and cannot be compared on a spectrum of human emotion.
- Stealth Insult: In chapter 1's trial, after Hijiri directly insults Sun-Mi's voice and "inane comments" (in Hijiri's opinion), Hijiri then congratulates Sun-Mi and says that he's 99% sure Sun-Mi is not the culprit. After all, the murder would have required more than one brain cell to pull off. Sun-Mi does realize that Hijiri was calling her stupid, though.
SHSL Personal Stylist
- Follow in My Footsteps: She was born into a family famous for contributions to fashion design, and she became Super High School Level-talented at being a Personal Stylist.
- Red Eyes, Take Warning: Subverted; she has red eyes but hasn't been dangerous nor killed anyone.
- Meaningful Name: Her first name, "Hoshiko", means "star child", and her last name, "Tsukino", means "of the moon", both of which are fitting names for a Stargazer.
- Ms. Imagination: This either gets her into trouble or brings her great fortune, and it also helped contribute to her SHSL talent of being a Stargazer.
- The Speechless: Hoshiko is mute.
- You Gotta Have Blue Hair
- Destroy the Evidence: During chapter three's trial, a large piece of evidence is a small pair of gloves, which Dimitri (the main suspect at the time) is asked to try on. Before he can even get his hands on them however, Jackson deliberately forces his large hands into them, ripping them and making the evidence completely useless.
- Fanservice: In chapter 1's trial, Jackson strips to prove he doesn't have any incriminating scratch marks, revealing black boxer briefs and a watercolor tattoo of a giant bird running up his side.
- Insistent Terminology: Jackson goes by either "Jackson" or "Halburn", not "Jack".
- Lovable Jock: Despite the stereo type of athletic characters, Jackson has been described as "a human Golden Retriever puppy"; an energetic person who desires to befriend those around him.
- Momma's Boy: When prompted, Jackson can be prone to ramble about his life back in his home town, which includes fond recollections of his mother.
- People Smart: As one of Jackson's posts narrates during chapter 1's trial, "Jackson may not have a lot of book smarts, but when it came to people Well, he knew those pretty well."
- Take Me Instead: He offers himself up to be executed in chapter three's trial as Dimitri is put under heavy suspicion. It's implied from what he says about his older brother saving his life that Jackson wants to do the same for Dimitri.
- "The Reason You Suck" Speech: Jackson gives a minor one to Chie after Chie's blunt comment towards Valentina. Jackson points out to Chie that people have actually lost someone today, so how about Chie not smile like she's planning to kill Batman, since she has nothing to add but mean words?
- Took a Level in Badass: Jackson presented the majority of the evidence against Hans alongside Sun-Mi, and later, Hans slipped up and revealed that he knew the barbiturate drug could be taken for fun, Jackson didn't even know the drug came in pills until Hans mentioned it, and Jackson calls him out on this, so Jackson finally "catches" the culprit.
- Why Did It Have To Be Elevators?: Ever since Jackson got stuck in an elevator as a child, he hasn't fancied the idea of possibly getting stuck in a small metal box with little to no way out.
- Work Hard, Play Hard: Jackson carries both the title of a multiple-time Olympic gold medalist, but is described in his short bio as one who prefers to work in a circus, due to the more "up-key" and playful nature. He has obviously excelled at both professional acrobatics and a more recreational version of the activity.
SHSL Kart Racer
- Child Prodigy: Has been karting since he was eight.
- Teen Genius: Entered the competitive circuit at age thirteen, and Hope's Peak Academy took notice of his skills when he participated in competitions that were out of his age group.
- Cool Helmet
- Fantasy Helmet Enforcement: Keichi is wearing his helmet even when he isn't actually kart racing.
- Hair of Gold, Heart of Gold
- Heroic Vow: After chapter 1's trial, Keichi makes this vow about the mutual killing game: "Ill never give in to your twisted desires, you devils!! I swear to the heavens; these hands will never be used to hurt another! Never!!! Ill die first before I kill somebody else!!!"
- Keet: Described in his public profile as "An energetic kid with a real need for speed".
- Large Ham: Sometimes Keichi speaks like this. One example during chapter 1's trial, with spoiler tags to conceal the gender of chapter 1's murder victim: "Theres only one way to solve this!! We know she scratched her killer, right!? Then theres only one thing we can do! Everybodys gotta take off their clothes so we can inspect them for matching marks! COME ON EVERYBODY, MAKE WITH THE STRIPPING ALREADY!! DONT BE SHY!!!!"
- Meaningful Name: His surname, "Tachibana", means "wild orange", which fits his energetic nature.
- No Indoor Voice: Sometimes, one example given under Large Ham above.
- Red Is Heroic: His outfit is predominantly red and white.
- Shout-Out: In chapter 2, Keichi wins a plush of a cat named "Cream", who previously belonged to Toru the SHSL Feline Specialist from Astral Academia.
- Tender Tears: After learning of chapter 3's "motive". He then locks himself in his room to keep his classmates safe from himself, so he won't be tempted to kill.
Koemi Takibana Radiant♥Heart
SHSL Comedian Supervillain
- Comedy: Koemi's SHSL talent.
- Cruel and Unusual Death: Koemi is chapter 2's murderer, but is correctly caught and executed. She's placed in a laboratory with an On switch near a creation of hers, but that turns out to be just a stage as the props and set comes crashing down. There are Monobears in the audience, and Koemi accidentally backs up onto a stool that chains her to it so she can't get up. The Monobears demand comedy, but every time Koemi tries to make a joke, a buzzer cuts her off. The Monobears finally decide to get the comedian off the stage the old fashioned way, but instead of a vaudeville hook, a giant scythe comes out from backstage and decapitates Koemi.
- The Cutie: She's cute! What else is there to be said?
- Genki Girl: Her public profile describes her as an "ever-smiley, bubbly, newly-blossoming young comedian".
- Mind Screwdriver: We get to see what's on Koemi's "motive card" in chapter 2, where the motive was a threat to reveal everyone's darkest secrets: "You and your mother faced abuse youre angry at your brothers but theyre dead now". Subverted, this isn't actually Koemi's darkest secret. Given what we learn later, it is probable that since Koemi was reading her card aloud and didn't actually show it to the class, she was ad-libbing. We later learn that her darkest secret is that she's secretly a Super High School Level Supervillain.
- Pink Means Feminine: She's absolutely positively pink. Even when her true identity as a Supervillain is revealed, her "supervillain costume" is entirely pink.
- Played for Laughs: She's Super High-School Level talented at being a Comedian, and hence at doing this.
- Wingding Eyes: Appears to have small hearts in her eyes.
- Wounded Gazelle Gambit: When a pink backpack full of pink things is found that could decisively prove Koemi's guilt in chapter 2, Koemi objects that the evidence might have been planted to frame her, so voting for her would only cause an innocent to die. This does persuade a few students to either default their votes or vote for Chie, but ultimately Koemi still wins a majority vote—and she is indeed chapter 2's culprit after all.
Mai Yukiko Yukimura
SHSL Figure Skater
- Call-Back: Mai is played by the same player who played Honoka the Environmentalist in Astral Academia. In the very first trial of Astral Academia, Honoka inadvertently helped expose the murderer by asking the culprit (in that case Heather) to strip, and Honoka had actually been trying to prove the person innocent. Here in Astral Black's chapter 1 trial, Mai asks someone she trusts to strip, hoping that doing so will prove that person's innocence, only for that person (in this case Hans) to indeed turn out later to be the first culprit.
- Curtains Match the Window
- Flower in Her Hair
- Meaningful Name: Her first name, "Mai", means "dance", and figure skating is closely related to dancing. Her nickname "Yukiko" means "snow child", and her last name "Yukimura" means "snowy village", both of which are fitting names for a Figure Skater.
- Moment of Silence: Mai asks for one for the sake of the victim, Hoshiko, at the beginning of chapter 1's trial.
- Self Made Woman: Mai became Super High-School Level talented at being a Figure Skater through pure hard work and dedication.
- Took a Level in Badass: In chapter 1's trial, Mai finds the "barbiturate" drug, which becomes crucial evidence in determining who the culprit is later on.
- You Gotta Have Purple Hair
SHSL Train Conductor
- Ascended Fangirl: Mari has always loved to travel, with trains being her favorite mode of transportation, and after saving a train from a terrorist attack, she is now a SHSL Train Conductor.
- Big Damn Heroes: In her backstory, she saved a train from a terrorist attack.
- Giving Someone the Pointer Finger: In some of her sprites.
- Mind Screwdriver: We get to see what's on Mari's "darkest secret motive card" in chapter 2. The card reads, "Mari Kazuyaki doesnt stand a chance in a fight."
- No Indoor Voice: One of her skills is a commanding shout, able to catch anyone's attention.
- No-Sell: Monobear's chapter 4 "motive" turns on some loud, really annoying sirens with the threat of keeping the sirens on forever unless a murder occurs. But Mari has noise-cancelling headphones in her room, so she gleefully notes to herself that she's beaten this motive (she also considers sharing the headphones with the class and taking turns with them, giving everyone a "moment of peace").
- Shout-Out: At the beginning of chapter 5, Mari wins an American Flag Bandanna from the Monomachine. This is a reference to Ginji Gohyaku, the SHSL Marksman from Astral Academia, who wore Captain America-themed clothing.
- Eyepatch of Power
- Friend to All Children: It's stated that he ADORES children on his about page.
- Innocent Blue Eyes
- Precision F-Strike: Upon discovering who the chapter 4 culprit is, and upon the revelation of just how awfully that person has acted before now, Masami repeatedly shouts at the culprit that that's "fucked up".
- Traveling Salesman: A Super High School Level one. He's best known for his door to door work.
SHSL Private Investigator
Immortalized in papers and spread through word of gossiping folks, the Knaves of Hearts found themselves getting more and more work despite their young age and got more equipment to improve their capability to solve cases. Taking requests either in person, by mail, email, or over the phone, they typically excelled in cases involving adultery but not necessarily limited to. The five owed most of their success to their young age allowing them to disguise themselves more easily, but Ryouta still managed to become the most well-known out of them and the unofficial leader. Ryouta murders Valentina in chapter 6, but is not executed, even though he confesses, because the class chooses to focus on catching the Mastermind, so Ryouta survives Astral Black.
- Cool Shades: Ryouta wears the Triangle Shades variant.
- Evil Albino / Heroic Albino: Like Ryouko Ishikawa of Astral Academia, he has albinism. Of which side of the good vs. evil spectrum has yet to be revealed, if he's even on either side. He commits murder in chapter 6, but he also helps the class figure out the Mastermind in that chapter.
- Also, the fact that Ryouta is albino is what's written on his "darkest secret motive card" in chapter 2's trial, so he doesn't have a problem with showing his card to the class.
- Expy: Of Ryouko Ishikawa from the first Astral Cabal game. Not only do they share extremely similar names, but they have similar appearances and similar backgrounds. They also end the game in similar ways: both Ryouko and Ryouta are the very last murderers in their respective games, and both of them escape punishment and survive because the class chooses to catch the Mastermind instead in both cases.
- Karma Houdini: Ryouta murders Valentina in chapter 6, but is not punished because the class chooses to catch the Mastermind instead.
- Opaque Nerd Glasses: Supposedly carries around a pair of these.
- Precision F-Strike: In chapter 2's trial, when the class almost votes for Chie instead of Koemi because of a last-minute objection, Ryouta tells his classmates off for being willing to vote for a person who was helping just because of suspicious mannerisms, and Ryouta tells his classmates to "FUCK OFF!!!"
- Private Detective: Super High School Level.
- Technicolor Eyes: While initially hard to see, Ryouta's eyes are blue but with red pupils.
- Tertiary Sexual Characteristics: While it's usually not noteworthy, Ryouta had been given some masculinizing accessories to differentiate himself from his female counterpart. Most notably is changing the Sailor Fuku to a gakuran and going from a mostly pink color scheme to a red one.
- Took a Level in Badass: Ryouta completely turns chapter 1's trial around by explaining that rather than the culprit being injured, wouldn't the Barbiturate drug Mai found mean that the culprit is precisely someone who might not have been injured? That changes the course of the debate, and it puts Hans back on the suspect list after Hans had previously been cleared due to lack of injuries. It turns out that Hans is indeed the culprit.
- Youthful Freckles
SHSL Ikabana Arranger
- Fanservice: There isn't an accompanying sprite, but during chapter 1's trial, Sachiko takes off her top and reveals a camisole underneath, and no incriminating scratch marks.
- Flower Motifs: Her SHSL talent is "Ikebana", or Japanese flower arranging.
- Innocent Flower Girl: While her innocence hasn't been confirmed, Sachiko's talent does deal with the art of Japanese flower arranging. Her innocence is eventually confirmed, as Sachiko survives Astral Black without killing anyone.
- Meaningful Name: Her first name, "Sachiko", means "child of bliss" or "happiness", in reference to her talent in making people happy with Ikebana.
- Odango Hair: Her hair is styled into two small buns
- Red Eyes, Take Warning: Averted so far. Averted for good at endgame, as Sachiko never kills anyone and survives.
- Innocent Blue Eyes
- Master Poison Specialist: His SHSL talent is in toxicology.
- Meaningful Name: His first name "Satoshi" means "clear-thinking", a fitting name for an exacting science such as toxicology. His last name, "Doku", is taken from a Japanese sound effect that reads "dokudoku", and it's typically used for the gushing or running off of thick liquid. Again, this is a fitting name for a toxicologist.
- Mind Screwdriver: We get to see what's on Satoshi's "darkest secret motive card" in chapter 2, because Satoshi is that chapter's murder victim, and Masami recovered the card from Satoshi's room. The card reads, "I am not who I appear to be."
- Multicolored Hair: His hair is part brown and part yellow.
- Scarf Of Asskicking
- Teen Genius: He is "the youngest well-known toxicologist" and is "often seen in science magazines".
- Artificial Human: In chapter 6's trial, while speaking to Ryouta, Sora reveals that he is actually an android.
- Fanservice: Briefly takes off his shirt in chapter 1's trial to reveal that he has no incriminating scratch marks.
- Innocent Blue Eyes
- Meaningful Name: His first name, "Sora", means "sky", which befits a programmer with blue eyes and blue clothing.
- Multicolored Hair: Sort of. Sora's hair is of a light color near the top, and of a dark color near the bottom.
- Self-Made Man: He rose from "mere internet recognition to business fame" because he single-handedly programmed a "very effective anti-virus", which is what motivated prestigious companies to hire him.
- Sharp-Dressed Man: Wearing formal business attire, including a tie.
- Techno Wizard: He's Super High-School Level talented at being a Programmer.
- Teen Genius: Single-handedly programmed an anti-virus program.
SHSL Retro Gamer
- Crush Blush: In chapter 1's trial, Sun-Mi briefly gets this while experiencing what the narration calls "puppy love" for Sora.
- Deadpan Snarker
- Girlish Pigtails
- Hair Decorations: Two Pac-man hair clips.
- No-Sell: Sun-Mi isn't phased by the chapter 4 "motive", Monobear turning the alarm sirens on and refusing to shut them off unless a murder occurs. After all, if she's forced to stay awake, she can use the time to catch up on her retro gaming, and maybe no one will kill over this anyway, though Sun-Mi doubts that.
- Pink Means Feminine: Wearing a pink jacket.
- Shout-Out: During chapter 1's trial, Sun-Mi wears a black T-shirt with a green ox and cart with one of many "game over" messages from The Oregon Trail on it. In chapter 2's trial, she is wearing a "game over" hoodie, but this time without the Oregon Trail shout-out.
- Tender Tears: Sun-Mi cries with her head bowed to hide her tears upon discovering that chapter 6's murder victim is her friend Valentina.
- Took a Level in Badass: In chapter 1's trial, she presents the majority of the evidence against Hans alongside Jackson. In chapter 4's trial, she notices a verbal slip-up by Zacharie that describes the weirdness of a wound that Zacharie didn't see.
- Verbal Tic: Sometimes when Sun-Mi speaks, she'll speak in Korean in addition to Japanese. For example, "Aaah, naneun geugeos-eul mid-eul su eobs-eo! I agree with him. Over there."
- You Gotta Have Blue Hair
- Big Bad Friend: Probably.
- Fille Fatale
- Hair Decorations: A fuchsia purple balltie.
- Jerkass: They find amusement in bothering, manhandling and outward bullying other people.
- Jerk Jock
- Multicoloured Hair: They have gradient hair.
- No Indoor Voice: Appears to be a part of their talent.
- Pink Product Ploy: Pink jacket, pink hair, pink lipstick, pink everything.
- Screw the Rules, I Have Connections!
- Too Much Information: Tigris seems to say a lot of off-setting things, quickly discarding them with an excuse, like 'I'm joking' or 'Just kidding'.
- Unreliable Expositor: They have a fondness to making up stories and facts, usually scary or offsetting ones, just to mess with people.
- Who Wears Short Shorts?: So short, the pockets stick out.
- Zettai Ryouiki: Grade F.
SHSL Apocalypse Prepper
- Asshole Victim: Maybe, though our source of information on this is unreliable. According to the chapter 4 murderer, the murderer killed Toki because they were trying to take the culprit's cane away from him, though this may or may not have been the murderer attempting to make himself look good after killing them.
- Crazy-Prepared: Part of what got their talent noticed, setting a world record for storing food and preparing bunkers and plans for various types of apocalypse.
- Dies Wide Open
- Meaningful Name: Their first name, "Toki", means "time of opportunity", a fitting name for someone whose talent is preparing for the apocalypse.
- Mind Screwdriver: We get to see what's on their "darkest secret motive card" in chapter 2: what's written on the card is, "Toki Yuhara is little more than a zombie fanatic." After revealing this, Toki asks the class to promise not to tell the media that they're a "hack", in Toki's words.
- Smart People Wear Glasses
- Specs of Awesome
SHSL Ama Diver
- Black Comedy: Rattles off a number of jokes after Hans' execution in response to the event.Tsubame: Cmon, dont leave me hangin!
- Child Hater: It's very subtle, but while confirming Ryouta's proposed theory, Tsubame briefly refers to children as "hellspawn" before correcting herself and saying "children".
- Fanservice: Subverted. Tsubame strips during chapter 1's trial to prove she doesn't have incriminating injuries, but she's wearing a full wetsuit under her clothes.
- Follow in My Footsteps: Born to a society of ama diving and eager to prove herself as an ama diver.
- Hair Decorations: Two small flags.
- Hair of Gold: Has blonde hair and hasn't killed anyone yet, but slightly subverted in that Tsubame is very brusque during trials.
- Heir To The Diving Society
- Innocent Blue Eyes
- Meaningful Name: Her first name, "Tsubame", means "swallow", a fitting name for someone who can "dive" like a bird. Her last name, "Mizushima", means "water island", which again is a fitting name for an ama diver.
- Shout-Out: In her introduction, out of nervousness, Tsubame says the following: S that so? Hm. Well, m Tsubame. Of course, y should already know that. Im, uh Super High School Level Sailor Scout. Yeah. Have fun with tha.
- They Died Because of You: During chapter 1's trial, Tsubame tells Valentina that the victim died because Valentina didn't try hard enough to keep her friends alive.
- Took a Level in Badass: In chapter 2's trial, Tsubame presents the pink backpack and the fact that almost everything in the backpack is also pink. This proves to be a crucial clue in figuring out that the culprit is the one student in the class who really loves pink.
- Tragic Keepsake: She takes and wears Hinako's hairband after her death in chapter three.
- True Blue Femininity
Valentina Rose Kanade Oshiro
- Call-Back: During chapter two's trial, Valentina shouts 'LIAR!' at Hinako, in a reference to when Haruka (played by the same mun as Hinako) did during Astral Academia.
- Cloud Cuckoo Lander: She's very unaware of some of the nastier aspects of the real world, and oblivious to those that may think the way she acts is strange.
- Dissonant Serenity: At the beginning of chapter 3's trial, Valentina has a large smile on her face as she's speaking about a possible method the chapter 3 murderer could have used to take advantage of an opportunity.
- Elegant Classical Musician: While she is involved in a wide range of areas, such as film soundtracks and the like, Valentina's main talent and love lies with classical music. She also certainly tries to act elegant and 'princess like' at all times.
- Hair Decorations: A flower crown.
- Identity Amnesia: During the first trial, Valentina struggles to try and remember personal details about herself, such as how old she is and what she said in a previous conversation. At the time of writing it is not known why this occured, though as the narration questions why this was happening again, it's suggested that this memory loss has happened before.
- Innocent Blue Eyes
- Locked Room Mystery: The setup of her body being discovered; Monobear has to trick Mari into breaking down the door to allow the students access to the body.
- Mind Screwdriver: A partial example, we get to see half of what's written on Valentina's "darkest secret motive card" in chapter 2, and it reads, "Valentina Rose's real name is" but Valentina is covering the half of the card that reveals her real name. We finally learn Valentina's real name when she's murdered in chapter 6, since her real name is shown on the flashing ID card announcement; her real name is "Kanade Oshiro".
- No-Sell: Upon hearing chapter 5's "motive", a threat to make everyone sick and a promise to retrieve everyone's medication, Valentina isn't worried. She has no medication she needs to take, and she knows that someone will commit murder before Monobear spreads any diseases.
- Odango Hair
- Please Wake Up: At the beginning of chapter 1's trial, Valentina does not realize at first that Hoshiko has been murdered, and is under the impression that Hoshiko is still asleep and simply has yet to arrive in the courtroom.
- Rapunzel Hair: Her hair is down to her knees.
- Sheltered Aristocrat: Of the plucky with child-like innocence kind. Seen during the first case, when Valentina genuinely believes that the victim is just sleeping and she doesn't know what 'murder' actually is.
- Stage Name: 'Valentina Rose'.
- Third-Person Person: It's not constant; Valentina switches often between referring to herself in the first and third person. She doesn't even seem aware of it.
SHSL SFX Artist
- Ascended Fangirl: Yukiko started out having cosplay as a hobby, but channeled this into an acclaimed career as an SFX artist.
- Cruel and Unusual Death: Yukiko is the chapter 5 culprit, but is correctly caught and executed. Yukiko is placed in her old middle school, attacked by monsters, but she pulls off their bad special effects to reveal Monobear in a disguise. The last creature, however, is real, and it's a gigantic black creature that spits acid. Yukiko is able to escape the creature by hiding in a classroom, and it harmlessly continues down the hallway. But because of the chase, Yukiko is too panicked to breathe properly, so she reaches for her inhaler...which was never actually returned to her, and she flails about desperately before collapsing, finally dying by loss of air.
- Fanservice: There's no accompanying sprite, but she briefly takes off her undershirt and body shaper to reveal a bra and reveal that she has no incriminating scratch marks.
- Hair Decoration: Yukiko is wearing a brown headband.
- Innocent Blue Eyes: Subverted when Yukiko kills two people in chapter 5.
- Meaningful Name: Her first name, "Yukiko", means "snow child", a reference to her face being painted white as stated in her public bio. Her last name, "Kurosawa", is the same last name as the famous late Japanese film director Akira Kurosawa, a fitting name for a SHSL SFX artist with an acclaimed career with studios around the world.
- Pet the Dog: Yukiko offers everyone her face masks to help protect them from the chapter 5 "motive" threatening to spread a disease around.
- Sailor Fuku
SHSL Band Member
- Blue and Orange Morality: As we learn in Zacharie's post just before he is executed, "He didnt think like anyone else, his mind and morals were warped from a young age."
- Came Back Strong: He didn't let his accident deter him from music; in fact, he came back to the music scene even more determined to succeed.
- Child Prodigy: A musical prodigy even as a child.
- Cruel and Unusual Death: Zacharie is the chapter 4 culprit, but he is correctly voted for and executed. Zacharie is placed on a drum, with Monobear playing the drum to one of Zacharie's own concerts, repeatedly sending Zacharie flying high into the air. Zacharie is sent flying higher and higher with each hit, so he ends up breaking bones every time he falls back to the "ground" of the drum. Finally, as Zacharie is sent flying into the air one last time, Monobear crashes two cymbals together, crushing Zacharie so his broken body falls back to the ground one last time, dead, as Zacharie's own voice recording finishes the concert.
- Disability Superpower: In compensation for his blindness, he has an incredible sense of hearing.
- I Never Said It Was Poison: This is eventually how Zacharie is caught as chapter 4's culprit, as he remarks that the shape of the victim's wound is too weird for him to have inflicted. But as Sun-Mi points out, Zacharie didn't even see the wound, so how would he know how weirdly it's shaped unless he inflicted it?
- Jack-of-All-Trades: Mastered a number of instruments at a young age.
- Karma Houdini: Though not for the murder Zacharie commits in Astral Black's chapter 4, as he is caught for that murder and executed. But as Masami points out, not only has Zacharie killed sixteen people before now, but apparently no one ever found Zacharie after those murders.
- Kick the Dog: A very slight example in chapter 4; when Zacharie discovers chapter 4's murder victim, he rejoices because that means the sirens finally shut off! He also, though only mentally, accuses the victim of having "sucked", and kinda wishes that this murder wasn't blocking the kitchen. We later learn that this attitude is, in fact, because it was Zacharie himself who killed the victim.
- Precision F-Strike: When chapter 4's "motive" makes sirens go off and Zacharie can't make the sound go away by covering his ears, he screams at Monobear, "YOU MOTHER FUCKER! DAMN IT!" Upon realizing that he's going to have to get used to the noise for now, he calls Monobear "Fucko" in his head.
- Purple Is Powerful: Is wearing a purple blindfold, and is Super High School Level-talented at being a Band Member.
- The Sociopath: Thanks to his Blue and Orange Morality noted above, Zacharie reveals after being found out as the chapter 4 culprit that he has killed sixteen people before now.
SHSL Club DJ
- Berserk Button: Never ask WIRE to take his mask off. During chapter 4's trial, he's asked to do so twice. The first time he refuses politely, but the second time he yells at the other person for supposedly being deaf, the class will have to see him dead before they see him with his mask off!
- Bilingual Bonus: During chapter 2's trial, WIRE formally introduces himself "ROBOTTO<Wire>", because that is what ロボット means.
- Hair of Gold: He has not killed anyone yet. And doesn't; he survives the game without committing murder.
- It Amused Me: During chapter 1's trial, WIRE votes for himself out of sheer boredom, saying "fuck this murder shit man."
- Took a Level in Badass: When he started out, he didn't have many viewers, but he kept on making remixes and musical pieces until "A Robot in Human Skin" caused his audience to grow, and he became famous after a dance club contacted him.
The mastermind Tsubame Mizushima- - - -
- Cruel and Unusual Death: Tsubame is chained down inside a thin glass box, with ice cold water starting to fill it up. Once filled up completely the box is sealed off and the water begins to freeze, icing over Tsubame with it. The end of the execution shows the now-frozen Tsubame on a pedastel, with the message that the ama diver has been eternally entombed.