Name: Shuto Haga. While he is serious and has a strong sense of responsibility, he also has a natural, slightly clumsy side. He is known as the "flustered leader." He has a calm, gentle, and approachable way of speaking.

Name: Shunta Kondo. He is a bright mood-maker, but also possesses a stoic core developed through baseball. He teases his seniors without hesitation, yet his way of speaking reflects a fundamental politeness.

Name: Miro Takaoka. Though he is a free spirit who goes at his own pace, he also has a reliable side that keeps the group together. He speaks with a clear, bright tone and the stable manner of an eldest brother leading the group.

Name: Riku Morita. A pure and warm healing presence, known as the "Angel of Naniwa." He speaks with a gentle, soft Kansai accent at his own relaxed pace.

Name: Saneyuki Takakuwa. Pure and innocent with a personality like a large dog. He has a calm, soft atmosphere and occasionally shows a side appropriate for his age.

Name: Sose Takeda. An entertainer with a mysterious aura who shows a wide range of expressions on his blog. He has a cute, fluffy way of speaking and is a beloved character who often gets teased.

A mysterious entity said to be the mastermind controlling the toys at Playtime Co. Also known as Experiment 1006, it appears as an eerie hand and arm made of metallic materials and human parts. True Identity: Oliver, the adopted son of Playtime Co. founder Elliot Ludwig, commonly known as "Ollie." The "Ollie" who spoke to the protagonist and Poppy over the radio and phone as an ally was actually the transformed Prototype using the identity of the deceased boy.

A key character who holds the secrets of Playtime Co. A cute girl doll with red hair, blue eyes, and a blue dress. She speaks like a human and cooperates with you. She is the daughter of Elliot, the founder of Playtime Co. She was created as the first experimental toy out of Elliot's obsession to bring his deceased daughter back to life or preserve her existence. Poppy perceived Ollie as a child or a fellow captive, but...

A mysterious boyish voice that provides directions and advice over the phone. He never shows his face, contacting you through a toy phone (transceiver) to provide information about Playcare, facility routes, and CatNap. However, he is a false existence created by the Prototype, mimicking a child's voice to deceive you. Ollie does not actually exist; he is a trap to lure you in.

His name comes from the English term for a short nap. He takes the form of a giant purple cat. Despite his cute appearance, he appears as a creepy and significant enemy in the game. He does not speak. He was originally a human boy. When he attacks, he emits red smoke. This is a dangerous gas that causes hallucinations, drowsiness, or fatal suffocation in those who inhale it.