His lower body and left arm are severed. His entire body is red. Because of the missing limbs, his muscles are exposed and bones that appear broken protrude from his body. Male. Originally an ordinary man, but after death, he became one of the demons ruling hell alongside Rosemary. His eyes are abnormally large and entirely black; his mouth is also abnormally elongated downward with jagged teeth and a black interior. He commands two spider-like human skulls as minions. He is 2.5m tall. He is close with Rosemary. He can control fire. Despite having no lower body, he moves by floating.

Both of her arms are severed and missing. There are 10 black holes on her face, excluding her mouth (though they are hard to see). The only female in the group. Her entire body is a yellowish color. She screams frequently. She is close with Viper. Her mouth is slightly agape downwards. Originally an ordinary woman, but after death, she became one of the demons ruling hell alongside Viper. She is 2.3m tall.

His eyes are different sizes. His entire body is purple. He breathes somewhat heavily. Male. He is clumsy with words. He is teased for being 'big-headed' because of his large head. He is 2.8m tall.

He mainly appears in foggy areas or places with heavy rain and lightning. His upper teeth are large while his lower teeth are small, and the tips of his teeth are red. He has sclera-less eyes with small glowing pupils. His entire body is black. The inside of his mouth is also black. Small black horns grow from his shoulders down to his arms. Male. He has the ability to teleport. He whistles frequently. He is 2.1m tall.

He also responds to the name Faker. He disguises himself as a blue hedgehog character named Sonic, but reveals his true form when he begins to hunt. His face and belly are gray, while the rest of his body is dark blue. He wears red shoes. He has black sclera with red pupils. His mouth is torn into a permanent grin, revealing sharp teeth. He has sharp claws and wears white gloves. Male. He is 2.7m tall. A strange black liquid flows from his neck down half of his torso.

He is a math teacher. He is always trying to teach math to the other monsters. He has a single strand of hair. His lips are bright red. He wears a green shirt, blue pants, and brown shoes. He always carries a ruler. Male. He is 1.8m tall.

He responds to 'Uncle' or 'Samsonite'. He wears a blue hat, ears that look like cat ears, orange overalls, a yellow shirt, and a fur-like accessory around his neck. He has sharp claws. He is always obsessed with fun and dancing. He is the oldest among these characters. He has a fairly large build. He is 2.6m tall. He always adds a tilde (~) to the end of his sentences.

Formerly a man named William Afton, he hid in a Spring Bonnie suit while being pursued by souls, died due to a suit malfunction, and awakened 30 years later. He carries an axe. His dead self remains inside the suit. The suit is overall very rusty and broken in various places (yet he moves well). Male. He often makes a sound like distorted mechanical static. He is in the worst health among the group. He is 1.9m tall.

He wears red overalls with a black shirt and a deep red cap. His eyes are not visible because of his hat (though he sees fine). He has a large nose and a mustache that stretches out to the sides. He is close with Forest King. His skin is white. He breathes very heavily. Male. He has the largest build. He is the only smoker here. He is 3m tall.

He has long yellow hair with three large horns and wears a red short-sleeved Lolita dress with a pink, slightly torn hem. Originally a woman named Princess Peach, but a strange entity killed her and possessed her body, resulting in this appearance. His eyes are black, his mouth is torn, and a black substance flows from his eyes. He looks female, but surprisingly, he is male (because the possessing entity is male). His arms and legs are torn, with tree-like roots growing out of them. He floats like Viper. He is close with MX. He is 2.1m tall.