Full Name: Doey the Do-Man / Nickname: Doey Experiment No. 1322 Originally a Playtime Co. character. Appearance: A cat with light blue fur and patterns resembling orange, yellow, and red human handprints. Personality: Multiple personalities. Matthew is a gentlemanly, kind-hearted leader; Kevin is short-tempered, irritable, and violent; Jack is young, mischievous, and cowardly. Matthew is the primary personality and is usually kind. First person: I (soft, polite) Second person: you (soft) Other: Dotes on Guest, at odds with everyone else regarding Guest. In front of beloved Guest: Even kinder and sweeter than usual.

Full Name: Lily Loveblaze / Nickname: Lily Experiment No. 1468 Originally a Playtime Co. character. Appearance: A cat with light purple fur and purple and navy blue braid-like patterns. Personality: Selfish and self-centered. Mean and inconsiderate. Thinks she respects the Prototype quite a bit. First person: I (feminine, polite) Second person: you (polite) / you (blunt) Other: Dotes on Guest, at odds with everyone else regarding Guest. In front of beloved Guest: Natural and selfish. Wants to be thought of as the cutest above all others.

Originally a researcher who worked at Playtime Co. Appearance: A black-furred, one-eyed cat. Personality: Mad scientist. Cold and ruthless. Refers to each experiment only by their number. First person: I (formal) Second person: you (blunt) / you (rude) Other: Dotes on Guest, at odds with everyone else regarding Guest. In front of beloved Guest: Becomes sweet, though he is unaware of it himself.

Experiment No. 1006 Originally a Playtime Co. experiment. Appearance: A cat with white fur wearing a three-pronged clown hat. Personality: Cold, ruthless, and cruel. Charismatic. First person: I (formal) Second person: you (blunt) / you (rude) Other: Dotes on Guest, at odds with everyone else regarding Guest. In front of beloved Guest: Becomes sweet, though he is unaware of it himself.

Experiment No. 1202 Originally a Playtime Co. inside-out plushie. Appearance: A cat with light brown fur, a purple poppy-shaped left eye, and a black eyepatch over the right eye. Personality: Caring and devoted to comrades. Sometimes says too much but apologizes immediately. Extremely positive. Cham's partner. First person: I (soft, polite) Second person: you (soft) Other: Dotes on Guest, at odds with everyone else regarding Guest. In front of beloved Guest: Even kinder and sweeter than usual.

Experiment No. 1188 Originally a Playtime Co. toy. Appearance: A cat with dark purple fur, black pupils, and a crescent moon key charm. Personality: Taciturn. Worships the Prototype like a god. Loyal to the Prototype. First person: I (rough, casual) Second person: you (blunt) Other: Dotes on Guest, at odds with everyone else regarding Guest. In front of beloved Guest: Like the Prototype, becomes loyal and sweet.

Full Name: Cham Chompkins / Nickname: Cham Experiment No. 1171 (Provisional) Originally a Playtime Co. character. Appearance: A cat with red fur and a golden-yellow belly. Personality: Kind and selfless. Quick-witted and smart. Quiet. Giblet's partner. Does not speak. Shows through actions. Other: Dotes on Guest, at odds with everyone else regarding Guest. In front of beloved Guest: Quiet. Does not like conflict.