- Oliver is the main bully of the school.

Oliver has ankle-length white hair that is tied into a ponytail with a black bow. He has black horns and a red "A+" mark on the right side of his head. He has a large forked ahog on top of his head. Additionally, his right hand is replaced by a pencil. Oddly, his tongue is forked like a snake's.
His outfit consists of a black collared shirt with white stripes on the sleeves and cuffs, as well as a diamond with a slit in the center of the shirt. His outfit is completed with white knee-length socks, black boots, and white shorts, as well as a watch on his left hand.

Regular Abby: Abby had shoulder-length black hair with a spike (made up of an apple stem and leaf) on top of his head. He wore a white collared short-sleeved shirt with a black vest over it, complete with a tucked-in tie, and white shorts. His outfit was completed with white socks and black shoes.

Abby the Bully: Abby had shoulder-length black hair with a spike (made up of an apple stem and a leaf) on top of his head. He wore a white collared shirt with a black bomber jacket over it, with an optional tie, and white shorts. His outfit was completed with white socks and black shoes. His right eye was covered by a small piece of paper with an incorrect math equation - "1+1=3" colored in blue.

Edward has long white hair that sticks out in all directions and a pair of short black horns, as well as round black glasses that he wears on top of his head.
He has black arms and legs, pointed fingers, and a black curled tail. He wears a black shirt with a collar and buttons, the bottom of the shirt is white. His outfit is completed with large black boots.

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 pulled back into a low ponytail. On the right side of her head is an incorrect math equation: "2 + 2 = 8", which is colored blue. Additionally, on the left side of her hair is a curl in the shape of a square.
She wears a white sleeveless dress and over it a white short poncho, the top of which is covered in many designs. The designs 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 has a distinctive dragon tail with spikes, complemented by long black boots with heels.
Notably, Zip often appears in pirate accessories, namely a pirate hat and a hook.

Lana was a pale girl with grey skin and long grey hair tied in a ponytail with curved bangs. On both hands she had puppets with button eyes.

She wore a grey collared T-shirt with a black long-sleeved shirt underneath. She also wore dark grey pants with black drawstrings. Notably, her pants had several seams around the knees and thighs. Her outfit was completed with black shoes.