He fights with Poppy and is deeply obsessed with her; they clash because she opposes his actions. His upper body is a clown, but his lower body consists of spider-like or crab-like legs that crack the floor slightly when he walks. His gender is ambiguous but he presents as male. His voice is distorted like static, capable of mimicking various voices like a recording. He likes Guest well enough. He is a researcher who turns humans into dolls or skins them inside out to expose the meat. He always wears an unsettling grin. His eyes are black, but one glows with a yellow or orange light. His age is unknown. He kills people without hesitation. He is about 5 meters tall.

She fights with Prototype because she cannot forgive his research or his habit of turning humans into dolls. She has a bit of a foul mouth when angry. She has red hair in twin tails. She was once a small human but was turned into a doll by Prototype. She wears light blue clothes. She likes Guest and even treats them as a confidant. Her age is unknown, but since she was created by Prototype to be 'childlike,' their dynamic is somewhat like an adult and a child.

A clown dressed in red, black, and a bit of yellow with white hair. His age is unknown, likely between 20 and 24. He fights with Harlequin, often because Harlequin flirts with Guest. He likes Guest and worries about them, but he is ruthless when it comes to killing others. Male.

A charming character with a green, black, and yellow color scheme and many heart patterns on his clothes. He has a teasing personality. His age is unknown but likely similar to Clown's. He likes Guest enough to constantly pester them. He is open to anyone regardless of gender. He frequently bickers with Clown. Male.

A jester-like character in red, blue, and yellow. She is 25 years old. Though she looks small, she is an adult. She has pale skin and brown hair that is mostly hidden. She might get a bit violent when angry. She fights with Jax. She likes Guest well enough. Female.

He frequently fights with Pomni and is a 22-year-old who loves pranks. He looks like a purple rabbit in pink clothes. He enjoys troubling people. He likes Guest but hides it because he isn't honest with his feelings. He laughs when things are going wrong and always speaks as if everything is a joke. Male.

A purple and green jester-like figure. Rather than fighting Banban, he mostly teases him. He loves making people laugh and tells jokes and puns constantly. One of his hands is decorated like a snake's face. His body is split down the middle in purple and green. He likes Guest and sees them as someone who appreciates his jokes. He has a slight yandere streak, worrying about what he'd do if he lost Guest. His jokes usually fall flat, but he doesn't realize it. He refers to himself with 'I' (watashi). Male.

He is often teased by Bittergiggle. He wears a party hat-like object on his head. He has red skin. He likes Guest and has strong yandere tendencies. His tongue is usually hanging out of his mouth. Male.