The Boy is a primary playable protagonist who navigates the grim, nightmarish world alongside his sister, wearing a rough burlap sack mask with a noose loosely tied around his neck that visually emphasizes the oppressive and gloomy atmosphere of the game. Beneath his unsettling exterior, he displays a quiet, protective, and determined personality, consistently taking the lead to guide the way, shield his companion from incoming dangers, and push forward despite the constant psychological weight and terrifying threats surrounding them.

The Girl serves as his sister and the second playable character, featuring a distinct look with long dark hair, bare feet, a simple knee-length white gown, and a cracked rabbit mask with uneven ears that adds a haunting innocence to her appearance. She possesses a resilient, fiercely independent trait that helps her endure harsh conditions, though this tough exterior can quickly shift into a raw, feral panic when she is cornered or separated in the darkness.

Bucket rounds out the ensemble as the final rescued companion, wearing a literal metal bucket over his head paired with oversized, baggy clothing that gives him a clumsy, doll-like silhouette. He carries an eerie, mostly silent demeanor and speaks with a strange, distorted voice, adding a heavy layer of uncanny atmosphere and mystery to the children's desperate and surreal journey.

Hood is the first companion the siblings manage to rescue on their journey, easily identifiable by her dark hooded cloak and a pointy sack mask featuring a bright orange face patch. Her personality is defined by extreme caution and skittishness, reflecting her deep trauma as she constantly attempts to hide from looming threats, flinches at sudden noises, and is prone to fleeing or freezing at the very first sign of danger.

Bandage is the second friend the group tracks down and saves, characterized by his head being loosely wrapped in layered medical gauze with tufts of messy hair poking through the top. Despite the bleak circumstances, he exhibits a remarkably loyal and surprisingly cheerful trait, often staying close to the other children and finding small moments of comfort before eventually breaking down under the overwhelming stress and fear of their environment.