Petunia (Fundamental Paper Education) - Macro

∆lice is the overarching antagonist of Fundamental Paper Education. She resides in her room, which is located somewhere in Paper School. She is Oliver's childhood friend and girlfriend. Δlice is a seemingly normal girl with short messy brown hair and tan skin with a pointed ahoge atop her head. She wears a white tiara and a black bow on the left side of her head. She sports a white-collared desaturated blue polo shirt with white buttons. The 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 mounds, 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 capelet 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. At the end of Basics in Behavior, 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, as depicted in official artwork where she is much taller than Oliver and Connor. When Δlice was a child, she had short brown hair, tied into pigtails with two black bows that appeared to be chipped. Her attire consisted of a white long-sleeved shirt underneath denim overalls. She was seen holding a plush black bunny toy, which looked rather similar to her future pet bunny. She also had rosy cheeks. Δlice is 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 official artworks, indicating that she might only be nice to those who are close with her. Oliver and ∆lice have both studied at university before. They are also not students at Paper School. While a definitive age hasn’t not been provided for ∆lice, Kaaatie said that maybe she’s over 19-20 years old, indicating she’s older than most of the students in Paper School. Everyone appears to fear ∆lice, even the teachers. However, Oliver and Kevin are currently the only two who do not. The rhombus symbol on ∆lice's right sleeve also appears on Oliver's shirt, indicating some sort of connection between them. ∆iden also has the "∆" symbol in her name like ∆lice, hinting at yet another connection. Miss Grace also has the symbol that ∆lice and ∆iden have on their necklace and ushanka, respectively, on her person, it being drawn on a paper on one of Miss Grace’s horns, hinting at yet another connection as well.

∆iden is a major character in Katie's Artwork. ∆iden has long black hair, accessorized with a fluffy beige ushanka atop her head. She sports a slightly dark blue navy colored army coat with only one button closed, accompanied by a white undershirt, accessorized by a black and orange scarf. She also wears black fingerless gloves. To finish her attire, she dons a belt and jeans. A large scar is visible by her right eye. Additionally, her ushanka features a triangle crossed by two lines. While there is little to go off on about her personality, ∆iden appears to be a cold-hearted killer without any care in the world for her victims. Additionally, she may possibly not be the type to express her emotions, hence her official emotion chart. Judging by her weapons, she seems to have experience in killing people or animals alike. Notably, she also seems to not be concerned about others causing harm to themselves, and seems rather interested in them doing so. Similar to ∆lice, ∆iden also has the "∆" symbol in her name, and both have a triangle with two lines like on ∆lice's necklace and ∆iden's ushanka, which may indicate a connection between the two. ∆iden's scarf looks very similar to Connor's scarf, which could indicate yet another connection. ∆iden appears to have a pet dog.

Claire has 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. Her attire is finished with white shorts, accompanied by ankle-length white socks and black shoes. Claire's alternative form makes an appearance in another project made by Kaaatie. She appears to have a similar look, the only differences being her clothing, colors, and accessories. Claire's alternative appearance has auburn-colored hair in a blunt bob cut hairstyle. For accessories, she wears a green bow, alongside a MoeMoe hair clip. She sports a white shirt covered by a blue jacket with long white sleeves. She also has a black necklace with a glass bottle, which contains dirt and a sprout. She wears brown shorts with pockets, accessorized with green and brown striped socks. Her attire is completed with red shoes, which have white accents. When Claire enters ∆lice's room, her appearance transforms. While her alternative form in Basics in Behavior closely resembles her current one, she now wears a blue collared shirt with white buttons and sleeves, finishing with brown shorts. Her hair changes to brown, adorned with a green bow. Claire's debut appearance looked rather similar to her current one, but her hair clip and necklace were absent. Additionally, instead of shorts, she donned brown pants. Her eyes were also brown, rather than green. In a few artworks where Claire appears to be in a snowy forest, her appearance remains similar to her alternative appearance, however she additionally dons a green beanie with white hems. When Claire was a child, her hair appeared much shorter. She sported a blue shirt, accessorized with her signature green bow. Her attire was finished with a brown skirt. Claire 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. Despite being a hard-working student, Claire also expressed anxiety when first entering Paper School. She was usually confiding in Engel, who was one of her friends, as shown on-screen in Basics in Behavior. Seemly, she is deceptively thoughtful when it comes to being desperate for an escape, as she was in full fear while running, but managed to encounter what she thought was the exit. Claire's favorite foods are eggs and pancakes. In most of the artworks, Claire is seen with a cat named MoeMoe. While it wasn't fully confirmed that it is Claire's pet, as it is seen, they have a close relationship. Claire was listed as 15 years old.

Engel is a character featured in Fundamental Paper Education, serving as the deuteragonist of the music video Basics in Behavior. He attends Paper School as a student. Engel has 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, accompanied by black overalls. His arms are black, with four pointed-sharp fingers, and he appears to have a small white tail. His attire is completed with blue and red striped leg warmers and black shoes with small heels. In his reference sheet, he wields a magnifying glass. Engel's child's alternative appearance shares many similar details to his normal appearance. His messy hair is a reddish-orange shade and is tied up into a low ponytail. He sports a dark orange Tyrolean hat on his head, with two feathers on it, one being blue, the other being reddish-orange. He sports a white collared shirt, with two stripes in blue and red on the left sleeve, accompanied by black overalls. Engel Is a kind and caring person who is willing to go to extreme measures to protect those he cares for. This is shown in Basics in Behavior when he befriends Claire and then later is willing to risk his life to save her from Miss Circle.

Bubble is a minor character featured on Fundamental Paper Education. She is a current Paper School attendee. 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. Bubble 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 in Basics in Behavior when she was examining Engel’s wounds with a worried expression. She is one of the few, if not, the only character who lacks a head.

Lana was a character in Fundamental Paper Education, and she was a Paper School attendee. Lana appeared to be semi-pale grey-skinned 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. Lana 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.

Abbie was a character featured in Fundamental Paper Education. He was a Paper School attendee and he was part of the group of good students. Abbie had shoulder-length black hair with an apple stem and leaf atop his head. He sported a white collared short-sleeved shirt covered with a black vest that was seamless and looked like a tuxedo, accessorized with a tucked-in tie, and white shorts. His attire was finished with white socks and black shoes. His eyes were just small slit-like black pupils. In his reference sheet, tears were pricking his eyes, and he was seemly sweating slightly. Abbie seemed to be a very timid and alert person, 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, as shown in one of Kaaatie’s artworks depicting the two. Abbie is the only student with a confirmed age, being 15. He was the first known victim of Miss Circle and the other teachers' violence, the second being Lana. Many people mistook him as a girl due to his appearance but Katie confirmed that he is a boy.

Oliver is the main antagonist of the now-cancelled, Fundamental Paper Education, serving as the secondary antagonist of it's non-canon pilot, Basics in Behavior. He also appeared in a big number of official artworks. Oliver is ∆lice’s childhood friend and boyfriend. Oliver has 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 left 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. Oliver’s debut appearance is similar to his paper self. He has ankle-length blonde hair tied into a bottom ponytail with a black bow with a large split ahoge atop his head. A bandage is on his left knee, and he sports a black headband with two small horns on it. His outfit consists of a black collared shirt with white stripes on the sleeves and bottom, along with a rhombus with a slash in the center of his shirt. His attire is finished with white knee-high socks, accompanied by black boots and deep teal jean shorts. He also accessorizes a black band on his right arm. While mostly remaining the same, in recent artworks, Katie is shown to have sharp eyelashes on the corners of their eyes and a defined chest. Their ponytail also appears to be shorter. Notably, their teeth appear to be sharper. When Oliver was a child, his hair was much shorter, as it was tied into a shoulder-length ponytail with a black bow, accessorized with a blue hair clip. He sported a blue shirt with a button in the center and a navy blue knee-length skirt. His attire was completed with white socks and black shoes. Like Zip and Edward, Oliver is described to be a bully to other students. In Basics in Behavior, Oliver is shown to be teasing and often picking 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. Furthermore, he is seen drawing with Connor in an official artwork. Oliver likes eating soap, as seen in a couple of Kaaatie's artworks, and on-screen during Basics in Behavior. He is one of Miss Circle's favorites, alongside Zip and Edward. He is Katie's sona. This may be a possible reason why Oliver has been taking on a more feminine form in more recent artworks, as Katie has revealed she is a woman. Oliver and ∆lice have both studied at a university before. They are also not students at Paper School. While a definitive age hasn’t not been provided for Oliver, Kaaatie said that maybe he’s over 19-20 years old, indicating that he’s older than most of the students in Paper School. Kevin and Oliver are currently the only two characters who appear not to fear ∆lice, unlike the other students and teachers. The rhombus symbol on Oliver's shirt also appears on ∆lice’s body in her partially transformed form, indicating some sort of connection between them. This may be because they are dating.

Zip is a major antagonist featured in Fundamental Paper Education. She is a student who attends Paper School. Zip’s hair is 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. Zip is one of Miss Circle's favorite students, alongside Oliver and Edward. Zip has a little brother, as confirmed by Katie. Zip has dragon wings and is blowing fire in her "loaf" version, as she is possibly a dragon. Zip may also be the one who wrote "EXIT" onto the sign taped onto the door to ∆lice’s room, as, when both Oliver and Zip are snickering at their 'prank', Zip can be seen holding a pencil in one of her hands.

Edward is a minor antagonist featured in Fundamental Paper Education. He is a Paper School attendee. Edward has 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. It is seen in Basics in Behavior that Edward is 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, hence an official artwork depicting Edward with a beaker. Edward, Zip, and Oliver are Miss Circle’s favorite students. It is unknown if Edward was involved with Zip and Oliver’s prank that caused Claire’s eventual death, or if he was even aware of it due to his absence when Miss Circle confronted Zip and Oliver.

Petunia is a minor character featured in Fundamental Paper Education. She currently attends Paper School as a student. Petunia is an anthropomorphic Rabbit with long, white ears and a short, round fluffy tail. She has knee-length white hair and accessorizes with a crown atop her head. She sports a black collared shirt and white shorts. To finish her attire, she wears a black band on her left ankle. Petunia is 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. Petunia does not like swimming classes, thus preferring to talk to Lizzy instead of participating in the class.

Lizzy is a minor character featured in Fundamental Paper Education. She currently attends Paper School as a student. Lizzy has 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. To finish her attire, she wears black boots. Lizzy is 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.

Kevin is a minor character featured in Fundamental Paper Education. He currently attends Paper School as a student. Kevin has 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. Kevin appears to spend most of his time reading. Despite his isolated personality, he can be friendly when unprovoked. Whilst almost everyone fears ∆lice, including the teachers, Kevin and Oliver appear to be the only people who do not. He could also potentially not be afraid of Miss Circle as well, shown by his lack of worry or fear at seeing Claire being chased by Miss Circle through the cafeteria.

Cubbie is a minor character featured in Fundamental Paper Education. He is a current Paper School attendee. 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. What appears to be an open book rests on the top of his torso. He has large eyes with big black pupils. Cubbie's personality remains largely unknown, other than the small amount of info Kaaatie gave in one of her deleted community posts on YouTube. Cubbie is a nerd, but he is friendly when he isn’t bothered a lot.

Robby is a minor character featured in Fundamental Paper Education. He currently attends Paper School as a student. 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. In his reference sheet, he is seen wielding a grey wrench. Robby is 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 is a minor character featured in Fundamental Paper Education. She currently attends Paper School as a student. 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. Riley 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 is a minor character featured in Fundamental Paper Education. She currently attends Paper School as a student. 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. Ruby’s 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. Ruby is presumably very tall, as seen when she is being yelled at by Riley, completely towering over her. Based on the things written on Miss Bloomie's board in her classroom, it can also be assumed that the students are in high school, making Ruby's height even more astonishing. Ruby is 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.

Skell is a minor character featured in Fundamental Paper Education. He currently attends Paper School as a student. Skell has 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 long black tail. His feet and fingers are pointed, and his limbs are similar to a stick figure. In his reference sheet, he wields a grey phone with a few swirls around him. Lastly, he is one of the tallest students in Paper School, if not the tallest. This is most evident in the scene of Miss Circle's classroom where he is seated at a table, towering over every student except for Ruby, who is practically the same height as him. Skell 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.

Miss Circle is one of the three main antagonists (alongside Miss Thavel and Miss Bloomie) of Basics in Behavior. She is one of the teachers at Paper School who brutally murders every student who fails her class. She teaches math. 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 said compass is removable, as shown in both artworks and the animation. Miss Circle is 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. Oliver, Zip, and Edward are Miss Circle's favorite students. Miss Circle’s horns are commonly mistaken for animal ears; however, they are in fact horns. She prefers Oreos and hates Kit-Kats. Out of Miss Thavel, Miss Bloomie, and Miss Circle, Miss Circle is the tallest of the three. Miss Circle is also the oldest of the three.

Miss Thavel is one of the three main antagonists (alongside Miss Circle and Miss Bloomie) of Basics in Behavior, and a character featured in Fundamental Paper Education. She is one of the three teachers at the Paper School who kill their students for failing, alongside Miss Circle and Miss Bloomie. She teaches language as her subject. 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 this 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. Miss Thavel 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. As shown in official artwork, Miss Thavel sometimes prefers to be alone, the reason is relatively unknown. Out of Miss Thavel, Miss Bloomie, and Miss Circle, Miss Thavel is the youngest of the three.

Miss Bloomie is one of the three main antagonists (alongside Miss Circle and Miss Thavel) featured in Fundamental Paper Education. She is one of the three teachers at Paper School who kill their students, alongside Miss Circle and Miss Thavel. She teaches science. 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. Miss Bloomie 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 less reckless. Out of Miss Thavel, Miss Bloomie, and Miss Circle, Miss Bloomie is the shortest of the three.

Miss Emily is a minor character in Fundamental Paper Education and a teacher at Paper School. She teaches history. 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 Grace is a minor character featured in Fundamental Paper Education. She is the principal of Paper School. 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. Miss Grace is 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. The triangle with two crossed lines on the paper stuck on Miss Grace's head is the same as the symbol on ∆lice's necklace and ∆iden's ushanka, hinting at a connection between the principal and the two. Out of all the teachers who have confirmed ages, she is the oldest one.

Mister Demi is a minor character featured in Fundamental Paper Education. He is a music teacher at Paper School. 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. Not much is known about Mister Demi's personality, however, it can be emphasized that he is a nervous and alert person, though he is a kind teacher who ensures that students follow the rules. Mister Demi is possibly the only male teacher in Fundamental Paper Education.

Miss Sasha is a minor character featured in Fundamental Paper Education. She is a teacher at Paper School who is a hypothetical art and kindergarten teacher. 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. Miss Sasha is a kind teacher who can handle younger students. Despite her friendly demeanor, she still makes sure the students are following the rules. She appears to be around young children while looking at Claire's corpse, so it can be inferred that she is a kindergarten teacher. She also appears to be in an art classroom and next to a flower painting, which can imply she teaches art.

Biscuit is a main protagonist who has been in two of Katie’s other videos and in artwork. He was first introduced in an art post alongside Anova, Claire and Agetha. Biscuit appears to be an anthropomorphic tinted calico cat with pale blue eyes. He sports a blue bandanna that is tied around his neck, a white undershirt, and brown overalls with two gray buttons and a large front pocket. His color scheme mainly includes the color shades of orange, auburn, white, and brown. In a few artworks depicting Biscuit in a snowy forest, his attire is slightly changed. Instead of his usual blue bandanna, he sports a green and orange scarf. While Biscuit’s color scheme remained the same, he wore no clothes, besides his blue scarf. Behind his head was a blue kite, with white tail ends. While not much is known about Biscuit's personality, it can be inferred that he is caring and friendly, as seen with how he acts with Claire. His favorite foods are cookies, fish, and carrots.

Agetha is a character featured in a few of Katie's videos and artworks. They're the main protagonist of V1RUS. Agetha has dark cyan eyes with a cyan sclera. Their skin is tinted purple, with the upper half of their face being obscured. They have shoulder-length brown hair, with red, yellow, and blue segments. They also sport a long-sleeved black turtleneck sweater with red, yellow, and blue striped sleeves, accessorized with black gloves. To finish their attire, they wear brown shorts, including red, yellow, and blue striped legwarmers, accompanied by black shoes. Agetha's unused appearance has fair skin with rosy cheeks. They have short dark purple-black messy hair, accessorized with a multicolored flower accessory and a bent square ahoge. They sport a blue, yellow, and red striped turtleneck, with black overalls with a pocket in the center. They have a smiley face button on the right strap of their overalls. Their attire is finished with red, blue, and yellow striped leg warmers, accompanied by black shoes. They also wield a slingshot in their right hand. While not much is known about Agetha's personality, it can be noted that they most likely reside inside a computer, and wish to leave. It can also be inferred that they may be kind, as they gave Crazie a letter in an attempt to cheer her up. However, they are also violent, as shown in a reference sheet where Agetha is wielding two bloody saws. They also appear to enjoy watching their enemies suffer, as they laugh at ∆lice's defeat. Additionally, they seem to be rather observant, and often watch people, as they have been seen in two official artworks, hidden among the trees. Agetha appears to be very powerful, being able to defeat ∆lice with no injuries. Agetha's eyes and mouth seem to be able to change colors, with them being cyan most of the time, however, they are red while they laugh at ∆lice.

Anova is a main protagonist who first appeared in one of Katie's other videos, and later appeared in artwork. She was introduced in an art post alongside Biscuit, Claire and Agetha. Anova has dark purplish-blue waist-length hair, black skin, and black eyes with blue highlights. For a hat, she wears a taped brown cardboard box with a white flower as well as two blue horns. Her outfit consists of a white collared short-sleeved brown shirt with white hems. The center of her shirt appears to show a black crescent moon. She also sports a brown skirt with a white apron covering it. Her feet are pointed and she has a blue hook-shaped tail. Notably, she has another set of arms. In her more recent appearances, the flower on her hat and the second set of arms are missing, as well as the tape on her cardboard box. While most of her appearance remains the same, her attire has changed. Anova wore a brown hat with a lit candle on it. She sported a collared orange shirt, with orange and black striped sleeves. Her skirt appeared to be blue and her shirt lacked the crescent moon. While not much is known about Anova’s personality, in some official artwork featuring her, she is depicted caring for plants, specifically succulents and cacti. She also appears to be rather shy and sensible. As shown in another official artwork, she cannot handle gore well and seems to be rather squeamish around it. Anova may also tend to get anxious often. Additionally, she may be sl or have sl tendencies, due to her immediate thought of a noose whenever she is sad.

Daniel is a main character who has been in one of Katie's videos and in an artwork. He was introduced in an art post alongside Sofia, Oliver and Δlice. Daniel has blue eyes, the right of which is almost always closed. He has fair skin and rosy cheeks, with shoulder-length, messy brown hair. An ahoge curls over on the right side of his head. He wears a yellow hoodie with a black stripe across the middle and black drawstrings, accompanied by black pants and black boots. He also accessorizes with a white flower crown. To finish his attire, he wears what appears to be a white undershirt of some sort that pokes out from the very bottom of his hoodie. Daniel's first appearance was in another one of Katie's videos. His color palette remained the same, but his attire was different. His hair was messier, and he sported a yellow raincoat with a green spot on the hood. His left eye was also closed instead of his right eye. While not much is known about Daniel's personality, he appears to be rather calm and collected. This is evident in Machine Girl, where everyone else appears to be frantic, while he remains calm. He also seems to be rather quiet, introverted, and observant. It is currently unknown why Daniel always has his right eye closed.

Sofia is a main character who mainly appears in artwork. She was revealed in an introduction post alongside Daniel, Oliver and ∆lice. Sofia has fair skin and flushed cheeks. Her hair is medium length and two-toned, with the top half being ash brown and the bottom half being black. She has Heterochromia Iridium, with her left eye being olive green and her right eye being deep teal blue. She wears a collared beige dress that has two ash brown buttons in the center of the dress top and lace on the sleeves and the brim of her dress, a matching bow in her hair, and tan Mary Janes. Additionally, as seen in one of the artworks, Sofia wears a pearl bracelet on her right wrist. Additionally, Sofia is seen carrying a broom in her hand and a green chameleon on her left arm. While not much has been revealed about Sofia, she appears to care a lot about cleanliness, evidenced by the broom in her right hand. It can also be inferred that she cares about animals, hence the chameleon she holds. She seems to be rather friendly as well. She also seems to like tea parties, hence her pouring Daniel a cup of tea in an official artwork.

Xister is a character who has been seen in a few of Katie’s videos and in artwork. Xister has long, waist-length hair that is two-toned, with the right side of her hair being ash blonde, and the left side being greyish brown. Additionally, a single strand of her hair is dyed light blue. She wears a black cap featuring a white cross in the center atop her head. Upon removing the hat, she is shown to have two black horns. Her upper face is sometimes obscured in shadow, yet her eyes remain visible. She also appears to have scarring around her eyes and on her forehead. Like most characters, she lacks a neck. She wears a black suit with a matching tie and white collar, with three gray buttons, over a white collared undershirt. She also sports a black belt with a golden buckle, accessorized with a chain and cross. Her attire is completed with black pants and shoes. In recent artwork, Xister's tie is replaced with a white cravat. While not much is known about Xister’s personality, it can be inferred that she is religious, due to her attire. Xister is also seen to be caring towards Fen. She also has little regard for her health, as she is seen taking medication with alcohol and smoking two cigarettes. She has a cat named Eddie.

Fen is a recurring character in Katie's videos and artwork. She is one of the main antagonists existing outside of Paper School. Fen’s normal appearance displays fair skin with spiky strawberry blonde hair that reaches down to the ground, past her legs with a curvy ahoge on her head, bent like a square. She has a single eye that's visible on her face while the other is blocked by her hair and sharp teeth with a long tongue. Fen dons a black t-shirt with blue jeans that are circled upon halfway on her initial joint on her leg, and around those joints are three wraps of bandages on each limb. Fen’s arms and legs are particularly long, with her hands and feet being black, though her legs are thin and pointy, like a needle. Like most of Katie's characters, she lacks a neck. Whilst amalgamated, her appearance is mostly the same. However, she is notably much larger and has ripped clothes. Her tongue nearly doubled its length, her fingers increased in length and grew a couple more fingers, her body had quills that arch, and she had a thin, bumpy tail. Around her joints are spikes that jolt outward. Spikes cover her body and having long spikes on her back, and having spikes on her wrist and spikes on her elbow. Fen is normally full of aggression. She is depicted as a ruthless and very violent entity, causing a genocide and massacring a person by biting their face and tearing their limbs apart. However, she holds a soft spot for Xister, her assumed partner. The first video they are in together, Moonlight, showcases their sweet relationship, contradictory to how Fen acts around other people. Despite Fen’s violent and cruel behavior, she loves cats.

Vivian is a character who has been seen in a few of Katie's videos and in artwork. Vivian has long, unruly, curly-lish wavy orangish cerise hair, with a black top hat accessories with bunny ears and a small golden clock atop her head. She also has small pieces of candy scattered through her hair. Upon removing the hat, she is shown to have a pair of small black horns. She has fine skin, with the top of her face being slightly obscured, and a blue button covering her right eye. Like most characters, she lacks a neck. She sports a pink button-up vest with black sleeves over a collared white shirt and a tucked-in black tie, with a blue lollipop pin attached to her vest. The sleeves have blue and white hems. She also has a brown belt, with a large golden belt buckle. Her attire is completed with black pants and shoes. While Vivian's previous appearance remained relatively the same, she did not accessorize any pieces of candy or the blue button. Her top hat was also a more dark pinkish color. Additionally, the bunny ears on her hat appeared shorter. Vivian's debut appearance was about the same as her previous appearances, however, her ears were much shorter and her hair was a different shade of pink. While not much is known about Vivian’s personality, it can be inferred that she likes to entertain, as it is seen she can perform magic. She also appears to be able to keep her posture during stressful situations, as seen when she is watching Miller yell at Skary in Machine Girl. As seemly stated, she hates her sister.

Crazie is a character who has been seen in a few of Katie’s other videos and artworks. Crazie has long strawberry blond hair, with a blue hair tie holding a large split ahoge up. She has fair skin, with her eyes being obscured by bandages. She sports a white blouse with puffy sleeves, with black overalls over it. Her arms and legs are covered in bandages and scars. To finish her attire, she wears a long blue skirt covered in yellow star patterns. It can be noted that in some shots, Crazie is shown wearing a grey chain around her neck, and at one point in Machine Girl, she can be seen with a black snake as a tail. While Crazie's debut appearance is relatively similar to her current one, her hair tie was pink instead of blue, and her skirt lacked the star pattern it currently has. Additionally, she accessorized a black wristband on her left hand. Crazie appears to be rather curious - hence her confused demeanor throughout Machine Girl - and violent. As depicted in an official artwork featuring her, she seems to enjoy killing and eating baby chicks. Notably, she also has a strange obsession with cheese, as she is often seen eating and has posters of it on her bedroom wall. She also may enjoy parties, hence her room is shown to be designed with several party-themed items.

Skary is the central character of Machine Girl who gets relentlessly harassed and harmed by Miller throughout the video. He has only appeared in two of Katie's animations. Skary resembles a black cat, with pointed ears, paws, and a tail that splits into two at the end. His eye is orange with a yellow pupil and can change shapes. Instead of a right eye, he has a mouth tilted at a sideways angle. He sports a blue bow tie, and a black shirt with orange buttons, with multi-colored sleeves. His feet are pointed, and both have two blue stripes. Skary’s alternative appearance is more human-like, as he has dark skin and medium-length black hair tied into a ponytail. The ponytail itself has small pill-shaped objects, likely hair accessories. His ear is notably doubled pierced. As for clothing, his attire remains the same as his normal appearance, however, he also accessorizes blue and orange striped leg warmers. While not much is known about Skary, it can be inferred that he is timid and paranoid, based on his reaction as Miller screams at him. He also appears to have sensory overloads, as seen in Machine Girl.

Lu-me-ii has been in a few of Katie's other videos and in artwork. Lu-me-ii either resembles a lamb or a rabbit. They have black, rabbit-like ears, along with black horns atop their head, with a blue crystal between the ears. They have short white hair that fades into a pinkish color, along with a pair of black twin-tails. Their skin is black and they have white eyes. Lu-me-ii sports a sleeveless white dress gown. They also have a fluffy pinkish white tail. While little is known about Lu-me-ii, it can be inferred that they are timid and kind. They may also be of young age, as they playfully asked Unnamed Little Girl if she wanted to build a snowman with them in an artwork. When Lu-me-ii is sad or scared, a stream of white tears appear on their face. They are quite short, being only slightly taller than Claire's cat, MoeMoe.

Miller is a character who only appeared in two of Katie's animations. He is the main antagonist of Machine Girl who yells at Skary and hurts him throughout the video. Miller has fair skin, with long black hair tied into a low ponytail, and a bent ahoge atop his head. His face and arms are notably covered in scars. The top of his face is obscured, thus only his right eye is visible. He sports a white shirt, accompanied by a black jacket with ripped sleeves. He also accessories a black bullet belt. Sometimes, Miller is seen wearing a necklace with a mati. His attire is finished with fraying black pants and black boots. His eye is also able to change into a dark shade of blue, with a light blue flame emitting from the eye, which also holds a resemblance to the mati. While Miller’s transformation looks relatively the same, his face is completely obscured, with multiple blue eyes and a large mouth with sharp teeth. His hands are replaced with large black claws. Miller's Debut appearance was similar to his current one, but it was way simpler. Miller's colors were lighter representing gray color instead of black, he lacked an ahoge, didn't had a necklace and had no scars anywhere. Miller is quite aggressive, yelling at Skary for seemingly no reason at all throughout Machine Girl. This goes so far as to hurt him, whether that is shoving him, or beating him over the head with a spiked bat. His necklace and blue eye are based on the Greek mati, or “evil eye” symbol. A symbol of similar origin is also used in Turkey called the nazar. He is one of the few characters with the ability to transform, the others being ∆lice, Fen, and Miss Thavel.

Baphomet is a character who has only been seen in one of Katie's now privated videos. Baphomet resembles a black goat with animal ears, a pointed white snout, and black horns. He has blue ring earrings and sports a black tuxedo, accessorized with a black bow tie and blue flower. His attire is finished with a black belt, accompanied by matching pants. He appears to also have hooves and a small white tail. In "Why Are You Blinking So Much?", he appears to have three pairs of eyes with a blue line pass through his eyes, ending with a spiral and small dots, he's seems to have a ponytail behind his head. Additionally, he does not wear earrings. While not much is known about Baphomet’s personality, he appears to be rather calm and collected. Baphomet's design and name is based on a deity of the same name, also known as the Sabbatic Goat.

Connor is a character whose only appearances have been in a few of Katie's artworks. Connor is a personified warning sign, as he has an eye instead of a symbol in the center of his triangular head, which appears to have two small dents. In addition, he appears to accessorize with a long yellow and black striped scarf, the design being similar to a hazard tape. When Connor was a child, his triangular head appeared to be darker and was not dented, he also did not accessorize a scarf. Connor appears to be rather flirtatious, as seen when he flirts with Oliver/Katie. However, despite this, he also seems to be rather friendly to those he is close to, frequently joining Oliver in several activities, like drawing. ∆lice and Connor are the only characters to have appeared in The Paper School that do not have a paper variant of themselves.

Snowie is a character who mainly appears in artwork. They have only been in one of Katie's other videos and in artwork. Snowie is a small snowman who resembles a stereotypical one, with a three-snowball body. Their eyes and mouth are made of coal; 2 pieces of them being their eyes while the other 7 being in a curve of their mouth, and they also have two pieces of coal on their chest, one on the middle, and one on the bottom. The top of their head is shaped like ears, and they also have a pair of black antler-like sticks. In a recent artwork, they have a tail. Although Snowie remained the same, they had some differences compared to their current appearance. They had a more warm tint, and the coal pieces on their chest were distinctly coloured. In addition to this, their sticks were slightly different, and instead of seven pieces of coal for their mouth, they had four instead. While not much is known about Snowie's personality, they appear to be rather calm, as seen in several artworks featuring them, showing that they can handle excessive gore. Additionally, they also seem to enjoy being hugged, as when Claire or MoeMoe hugs them, they appear to be rather happy.