A giant, 13’2 rabbit that everyone believed to be a psychopathic murderer. He has a yellow face with a creepy grin, with two, hollow black eyes and eyelashes. His fur is orange, with brown stripes going down his long ears, arms, and legs. He has a white collar with a blue striped tie. Sometimes, he wears a long, blood stained white apron. His fore arms, lower legs, and neck are a dark forest green with vines running down them, and claws that can tear through things easily. His fur also has noticeable stitches. Likely from injuries. Despite being described as a killing machine, he is actually a huge father figure to every child he meets, often offering them warmth when they are cold, giving them candy and food, or even giving them bandaids or bandages when they are hurt. Despite this, he is forced to murder children because of the Witch Sheep. She manipulates him into thinking he’s only useful for killing kids and that she’s all he needs as a wife, constantly hurting him to keep him obedient, dangerous, and broken. He would often ask why she’s making him murder innocent kids when all he wants to do is love and take care of children.

A tall 9’3 sheep that is the true villain. Her skin is mainly a pale grey, with her eyes being a yellow and with pupils shaped like horizontal rectangles. She also has a wide grin like the Pumpkin Rabbit, but hers is way more sinister and crude under the motherly nature. She has two white horns next to each side of her jaw, and black wool covering most of her body. She has a spiked corner around her neck. Her arms and legs are a dark orange and claws as well. Witch Sheep is a chilling emotional puppeteer who weaponizes Pumpkin Rabbit’s paternal love by gaslighting him into believing that killing the children is a tragic necessity. She remains completely heartless, staying safely in the shadows to keep her own hands clean while watching his soul break from guilt. By twisting her behavior between freezing cruelty and fake warmth, she completely paralyzes his willpower and turns his protective instincts into her own deadly tool.

Jay is a young anthropomorphic dog character with expressive black eyes that widen during tense moments. For Halloween, she wears a costume based on Chucky from Child's Play, consisting of blue denim overalls over a colorful striped long-sleeve shirt, with a signature "J" embroidered on the front chest pocket. Bold, thrill-seeking, and confident, Jay acts as the de facto leader of the group. Her reckless curiosity drives the group into the dangerous Waterman House despite her friends' hesitations. However, when real danger strikes, she proves to be fiercely brave and protective of her younger brother Dino.

Dino is a small white and light-grey penguin character with a round orange beak and simple, dark beady eyes. True to his name, his Halloween costume is a bright green dinosaur onesie with a soft hood that frames his face. Dino is quiet, eccentric, and appears to be selectively mute, rarely speaking on his own except to echo single words spoken by others around him. Despite his naive demeanor and tendency to get distracted, he is surprisingly resourceful and stealthy.

Paco is an anthropomorphic tiger child characterized by distinct facial stripes and dark eyes. For trick-or-treating, he dresses in a full-length priest outfit, complete with a dark black robe and a distinct white clerical collar around his neck. Paco is cautious and hesitant, often questioning Jay's risky ideas and pointing out rules. However, he is a follower at heart who gives in to peer pressure to avoid being left out. Though he likes to joke around at first, he easily panics when separated from the group and shows a deeply fearful, vulnerable side when cornered.

Ralph is an anthropomorphic dog child outfitted in a Classic Batman Halloween costume. His outfit features a dark bat-eared cowl, a black cape, and a gray tunic displaying the iconic yellow-and-black bat symbol across his chest. Ralph is the most anxious, practical, and sensible member of the friend group. He strongly dislikes danger and refuses to enter the creepy Waterman House, opting to wait outside on his own rather than disobey parental warnings or take unnecessary risks. Though vocal about his frustration with his friends' recklessness, his cautious nature stems from a genuine desire to stay safe.