Claire is a white-skinned female with a simple blunt bob cut hairstyle with a bow atop her head. She sports a white collared long-sleeved shirt with two buttons in the center, white shorts, ankle-length white socks and black shoes. She was known for being a hard-working student who focused on her studies. She had a calm demeanor, but she could get annoyed easily by Zip, Edward, and Oliver's antics. She was usually confiding in Engel, who was one of her friends. Abbie is a white-skinned, 15 year old male with shoulder-length black hair, an apple stem and leaf atop his head. He sported a white collared short-sleeved shirt with a black vest, accessorized with a tucked-in tie, white shorts, white socks and black shoes. His eyes were just small slit-like black pupils. He's a very timid and anxious student who was aware of his surroundings. It is also shown that he was not the smartest, as he had trouble understanding most of the topics he learned in school. He was also quite anxious, can be seen nervously holding his arm in the hallway and another example is shaking in his seat even before being confronted about his failing grade by Miss Circle. He also appeared to have a crush on Lana. Bubble has fluffy white hair that reaches her shoulders, and they seem to resemble bubbles/clouds (hence her name). She lacks a head and mouth, and her eyes are half blue (bottom) and half black (top part) with white star-shaped pupils. She accessorizes a pale yellow duck and blue toothbrush atop her "head". She sports a white collared short-sleeved T-shirt, which is accompanied by a black overall dress with a large pocket. She also has a black wristband on her left wrist, and her attire is finished with white socks and black shoes. She also appears to have a large, white fluffy tail that appears to look like bubbles. She appears to be rather empathetic and kind. She is one of Claire and Engel’s friends. She also seems to care about the others’ feelings or injuries, as seen when she was examining Engel’s wounds with a worried expression. Engel is a white-skinned male with long white messy hair tied up in a low ponytail and accessorizes with two blue and reddish-orange feathers atop his right head. He sports a white collared shirt, with two stripes in blue and red on the left sleeve, black overalls, blue and red striped leg warmers and black shoes with small heels. His arms are black, with four fingers, and he has a small white tail. He's a kind and caring, willing to go to extreme measures to protect those he cares for. Lana is a pale-skinned female with long grey hair that was tied up in a ponytail, with a curved cowlick. Like various characters, she lacked a neck, thus her head floating. She wore sock puppets on both of her arms, both of which had googly eyes. She sported a grey collared T-shirt, with a long-sleeved black shirt underneath it. She also wore dark grey pants with black hemming. Notably, her pants had a few stitches around her knee and hip dips. Her attire is finished with black shoes. She is implied to have been one of the least smartest, having a hard time understanding the material. Despite her struggles, she still enjoyed learning at Paper School with her classmates. Especially Abbie; who, like her, had trouble when it came to academics. Cubbie is an anthropomorphic black cat with a pencil sharpener as a replacement for a torso. His tail resembles a long-curved pencil shaving. He lacks a neck, therefore his head floats. He has an open book that rests on the top of his torso. He has large eyes with big black pupils. He's a nerd, but he is friendly when he isn’t bothered a lot. Lizzy is a white-skinned female with medium-length black hair tied into low twin tails with two white ribbons. She has black horns and a white crown with a small spiral atop her head. She sports a black collared dress, with two white buttons, and black boots. She's nice and friendly, but when provoked, she can be rude. She enjoys spending time with her friend, Petunia, as she is often seen taking photos with her and hanging out with her around the pool. Petunia is a humanoid rabbit with white long, white ears and a fluffy tail. She has knee-length white hair and a crown atop her head. She sports a black collared shirt, white shorts, and a black band on her left ankle. She's known as the popular girl in the class, along with her friend Lizzy. She is kind and friendly, but can be rather rude when provoked. She likes to take selfies with Lizzy and cares about her appearance. She does not like swimming classes, thus preferring to talk to Lizzy instead of participating in the class. Kevin is a white-skinned male with black hair tied up in a braid, along with black horns and a swirl ahoge. He has a white book atop his head, and he wears black round glasses. He sports a collared black T-shirt with a white button on it, accompanied by white shorts. To finish his attire, Kevin wears white socks and black boots. He can often be seen holding a book. He appears to spend most of his time reading. Despite his isolated personality, he can be friendly when unprovoked. Skell is a white-skinned male with shoulder-length black hair with black horns, the left one having two white stripes. Unlike the others, Skell has a torso that makes it look like his shirt, with two buttons and fur around the bottom and top. He wears a collar with a large bell and a skeleton pin in his hair. He appears to have one visible wing, accompanied by a black tail. His feet and fingers are pointed, and his limbs are similar to a stick figure. Lastly, he is one of the tallest students in Paper School, if not the tallest. He's appears to be a quiet and introverted person, who prefers solitude. Despite his calm personality, he may get chaotic at times. But, he is friendly towards those he is close to. Seemly, he appears to be boringly deprived, hence him wielding a phone. Robby has anatomy similar to a stick figure, with lanky black limbs. He has black fluffy hair with a pale blue and red propeller hat. He also accessorizes with black glasses. Like most characters, he lacks a neck. He sports a black collared T-shirt, with a large front pocket. He also has three claw-like fingers, and his attire is finished with black shoes. He's an ordinary child among the students, who is quite attentive to learning. However, it seems that he can be chaotic at times. It can also be noted that he may like building stuff, as he wields a wrench. Riley’s anatomy is similar to a stick figure, with thin black arms and legs, with a blocky torso. She has long white hair, tied into a ponytail with a black bow. She sports a white collared dress shirt, with buttons and a large pocket. Her attire is finished with black boots. She also appears to have a short black pointed tail. She wields a black knife in her left hand. She's seems to be a maniac, as she has a crazy demeanor. She appears to be chaotic as well, often seen wielding a knife. Additionally, she appears to have an obsessive crush on Oliver, going as far as to cling to him, however, Oliver is currently in a relationship with Δlice. Ruby has a white flat-screen television for her head. Her black monitor displays box-shaped eyes, eyebrows, a mouth, and cheeks, all of which are colored light pink. Her hair is blonde and knee-length. She also has two black horns, with a rainbow arch in between them, accessorized with a pink bow. Her torso is in the shape of a cone, and her arms are blocky. She sports a pastel collared sleeveless shirt, with a white overall dress over it. A pastel-colored rainbow is at the center of the overalls. Her attire is finished with pastel-colored leg warmers and black shoes. Her limbs are black, however, her wrists are white. She also appears to have a black plug for a tail. She's presumably very tall, as seen when she is being yelled at by Riley, completely towering over her. She's a kind and sweet girl, and she possibly loves colorful things, as seen with her colorful outfit. She also appears to make sure everyone is following the rules, as she scolds Riley for attempting to stab Robby. Oliver is a white-skinned, 19 year old male with ankle-length white hair that is tied into a bottom ponytail with a black bow. He has black horns and a red circled "A+" mark on the right side of his hair. He also has a large split ahoge atop his head. Additionally, his right arm is replaced with a pencil. Strangely, his tongue appears to be forked, similar to that of a snake. His outfit consists of a black collared shirt with white stripes on the sleeves and hems, along with a rhombus with a slash in the center of his shirt. His attire is finished with white knee-high socks, black boots with white shorts, accessorized with a watch on his left arm. He's very teasingly and often picked on Claire. He's also shown to have a snarky and playful attitude. He loves eating soap bars. Like Zip and Edward, Oliver is described to be a bully to other students. Oliver is shown to be teasing and often picked on Claire. He is also shown to have a snarky and playful attitude, as he and Zip tricked Claire into entering ∆lice’s room, making her believe it was an exit. Whether or not he intended for Claire to die, he appears to be sociopathic, as he took his prank so far as to let someone die. He also appears to be madly in love with ∆lice, despite her violent, cannibalistic, cruel actions and even joins in on her. Oliver also appears to be rather violent and has little to no care for his health, as he eats non-edible things, some of which are harmful to him, such as razor blades and soap. Additionally, Oliver is implied to like drawing in his free time, as shown at the start of Basics in Behavior, where multiple drawings of the other students and teachers in a notebook can be seen, such as Riley, Zip, ∆lice, Miss Circle, and Oliver himself. Oliver also appears to be a bit arrogant, calling himself handsome in the same notebook. Edward is a white-skinned male with spiky, long white hair with a pair of short black horns, accessorized with round black glasses he wears atop his head. He has black arms and legs, pointy fingers, and a black twisted imp tail. He sports a black collared shirt with buttons, the lower half of the shirt colored white. His attire is finished with big black boots. He's one of the bullies of Paper School, alongside Zip and Oliver. He appears to be very creative and innovative, as he made a drone to grab Claire and throw her down the pit in the library. He likely has an interest in science. Zip is a white-skinned female with two-toned, with the left side being black and the right side being white. The longer part of her hair is tied into a low ponytail. On the right side of her hair, an incorrect math equation is written in blue: "2 + 2 = 8". Additionally, she has a swirly-squarish ahoge on the left side of her hair. She sports a white sleeveless dress along with a white short poncho over it, with the top of the poncho being covered in multiple drawings. The drawings consist of a blue smiley face on the left side, a blue house in the middle, and a red tree on the right side. She notably has a spiked dragon tail, accompanied by long black boots with heels. In her reference sheet, she holds a paper airplane. Notably, Zip is seen wearing pirate accessories, more specifically a pirate hat and a hook, probably because she likes pirates like her younger brother. Alongside Oliver and Edward, Zip is known to be a bully who causes trouble and often bullies other students. She is seen hanging around with Oliver and Edward, constantly picking on Claire. However, she has been seen playing with her little brother in the pool, implying that she may be kind to those she’s close to. Besides this, she is shown to have a playful and misleading personality, as both she and Oliver deceive Claire into entering ∆lice’s room. As stated, she seemly doesn’t like really gross stuff, such as Oliver taking his heart out. Chip is a white-skinned male with shoulder-length white hair. For attire, he wears a white cloak with a zipper at the top. He also wears a large fish accessory on the back of his head. Zip's Little Brother enjoys playing pirates with his older sister, as seen when he and Zip ride a pirate ship through the school's pool. Δlice is a seemingly normal girl with short brown messy hair and tan skin with a pointed ahoge atop her head, a white princess tiara, and a black bow on the left side of her head. She sports a white collared desaturated blue-grey long-sleeved shirt with two white buttons, however, her sleeves appear to be damaged by tears. She wears a black necklace with a bronze transparent triangle crossed through by two lines on it. Her attire is finished with a black tea-length skirt with a white waistband, white semicircle outline designs on the end with dots in between the semicircles, accompanied by white socks and black mary-janes. She appears to have a reddish scar on each leg. While Δlice‘s appearance mostly remains the same, part of her true form shows. Her clothes seem more tattered and ripped. She dons a tattered poncho with a brown patch appearing on the right side of the poncho with a rhombus symbol on it and a bandage wrapped around both of her sleeves. She still has a black bow but on the right side of her head. The white princess tiara changes to a black crown, and a strange red rash appears on the right side of her face. The top part of her face is obscured, thus only one eye is visible. Six small black spikes poke out from behind her, one of them wrapped in a bandage. Her left leg is covered in three cuts and scars, and she appears to accessorize a black legcuff on her right ankle. Her black skirt has two brown patches with a rhombus and stitches. As seen in a few artworks, she also has a bandage wrapped around her chest. In her full from, Δlice is seen in her true form. She takes on a demonic appearance, pitch black and silhouetted with bright red scleras and black slit pupils. Six large black spikes poke out from behind her, and three long tendrils occasionally extend from her back. She has long black claws, and she also has a long black tail. Additionally, she appears to grow in height. She's aggressive, willing to kill anyone who enters her room. This is seen in Basics in Behavior when Zip and Oliver disguise her room as an exit door to trick Claire. It is possible that Δlice is more dangerous than the teachers, due to how she's locked away and isolated in her room, with "DON'T ENTER" signs on the door. This could also be backed up by the three teachers’ reactions to Claire booking it to Δlice’s room, as they seem to show signs of fear. She is seen being passive with Oliver in multiple places, indicating that she might only be nice to those who are close with her. ∆lice’s room was shown throughout the video but is only entered at the end when Claire is tricked by Zip and Oliver into thinking it was an exit. ∆lice resides in this room, and as for the appearance, the room seems to be a black void.

Miss Grace's hair is white and styled in a big ponytail, with two small clips on her right bangs. She has a pair of black horns on her head, her left horn appearing to be worn or snapped off. On her right horn, she has a piece of paper with a triangle crossed through by two lines on it. On her cheek sits a monocle, and her eyes appear to be slightly obscured by her long bangs. She sports a green suit with two buttons, a collared shirt, a black tie, and a long black skirt. Although her skin is white, her sharp hands and legs are both black, with pointed feet and sharp fingers. Notably, she has three black scars on her forehead, slightly covered by her hair. She sports a green suit with two buttons, a collared shirt, a black tie, and a long black skirt. Although her skin is white, her sharp hands and legs are both black, with pointed feet and sharp fingers. Notably, she has three black scars on her forehead, slightly covered by her hair. She's kind to the students but still insists they follow the rules. Despite her polite attitude, she appears to be stern, and less talkative. She is also able to keep her composure in stressful situations. Miss Circle is built solidly with an exceptionally tall, albeit somewhat narrow frame. She has very long spiky black hair that extends past her knees. Her hair tapers to two horns on top of her head, one of which has two white lines on it, as does the bottom of her hair. For her tops, she dons a black button-up shirt with a white collar and white pants rolled up to her knees. She also sports tall black boots with three laces near the bottom. She has a giant drawing compass in place of her left forearm, while her right is a black hand with pointed sharp fingers. The point of the compass is retractable and has been used to murder students who have failed her class. The compass is removable. She shown to be very cruel and violent once students fail her class. She shows no mercy towards students who fail in her class, killing them. She is also known to play favorites, such as Zip, Oliver, and Edward. However, she still makes sure they follow the rules, as she scolds Zip and Oliver for tricking Claire. Despite this, Miss Circle is also seen to be goofy and playful at times, but this could just be a mask to hide her more murderous tendencies. Miss Thavel has paper-white skin with large black claw-like hands. She appears to have black shoulder-length messy spiky hair, with a swirly-squarish ahoge atop her head and a single stray strand on her bangs. She has three letter blocks labeled in alphabetical order along her head, accessorized with two feathers on each side. Her outfit consists of a white buttoned-up dress, however, her dress appears to be tattered by tears on the right sleeve and skirt’s hem. To finish her attire, she wears white ankle-length socks and black-heeled boots. In her true form, the letter blocks on her head are replaced with wendigo antlers, she gains a deer-like tail, and her attire is more tattered and ripped. Her arms and legs also appear to gain a furry texture of sorts, alongside gaining what seems to be marks or scars in the legs. She may seem like a regular teacher, but behind her demeanor is a cruel and sadistic woman. Like her colleagues, she is willing to punish her students severely for failing classes. Every student is afraid of her, just like Miss Circle and Miss Bloomie. She prefers to be alone, the reason is relatively unknown. Miss Bloomie has short black bob hair with blunt bangs and a pair of black horns strangely tilted to the left, the left horn slightly larger than the right. Her hair is tied up in a small ponytail with a white bow. Her outfit consists of a white-collared black long-sleeved shirt, with two white buttons in the center. Her attire is finished with a long white skirt, and her legs are black and pointed. Her left forearm is replaced with a blade resembling a giant box cutter, while her right is a white hand with pointed fingers. Notably, she has a forked tongue, similar to that of a snake. She seems to be a normal teacher at first glance, but this façade drops when a student fails her class. She is a strict and feared teacher who—like Miss Circle and Miss Thavel—is willing to punish her failing students by killing them. Unlike the other teachers, she is somewhat less reckless. Miss Emily has black afro hair tied into two low pigtails, a black puffy tail, and black horns. She is the only dark-skinned character out of all the teachers, however, her hands are black with sharp fingers. Her outfit consists of rectangular-rimmed glasses, a white blouse with two black buttons, black hems on the sleeves, and a black skirt with five white spots. Her attire is finished with tights covered by calf-length black heeled boots. From all the known about Miss Emily, she appears to have a kind and calm personality with the students but she still insists they follow the rules. Miss Sasha has long, messy black hair, tied up in a ponytail with a rainbow ribbon. She wears a light maroon beret, and strangely, a green book covers the left side of her face. She sports a white and grey striped collared shirt, with a black jacket over it, with the bottom of the jacket having a large pocket. Her attire is finished with black shorts and white socks, accompanied by black boots with teal laces. She's a kind teacher who can handle younger students. Despite her friendly demeanor, she still makes sure the students are following the rules. Mister Demi has shoulder-length blunt white hair styled in a bob-cut. He has a pair of white pencils atop his head with a pair of small black horns, his left bang resembles a piano keyboard, he accessorizes with black glasses, and only his left eye is visible and it's light green though it appears as blue. He sports a white collared puffy sleeved shirt, with black suspenders over it. An eighth note is present on the center of the shirt, and the left strap of the overalls has two white clips, accompanied by a belt. His upper arms are white with black stripes, whilst his forearms and hands are black, and his attire is finished with black pants and heeled boots. He's a nervous and alert person, though he is a kind teacher who ensures that students follow the rules.

The Paper School is white and the school has four trees in front, the school has a black outline and the middle part of the school has a Maple Tree Leaf with a black circle, circling it. The school consists of three floors and various windows (thirty-three at most as seen onscreen, though there's likely more on the other sides). The school also has two entrances with pillars nearby, and above them appear to be a pencil above a nameplate surrounded by two centered stars.