Ted's beloved black cat and one of the narrators, Olivia provides a unique perspective on the events within the house. Her understanding of the world is shaped by her feline senses and the confinements of the house.

The determined older sister of missing girl Lulu Walters, Dee searches for the truth behind her sister's disappearance while dealing with unresolved trauma and guilt.

Described as Ted's preteen daughter, Lauren is a mysterious and complex figure whose actions and origin are pivotal to understanding the story's deeper layers.

Ted's mother, whose influence and legacy haunt him throughout the narrative in both literal and figurative ways, shaping much of Ted's internal struggles.

A psychiatrist with questionable ethics, he becomes involved with Ted through therapy sessions and showcases the vulnerabilities of those with psychiatric conditions.

A forest ranger with a patient and caring demeanor, Rob's interactions with Ted are crucial for Ted's journey toward healing and connection with the outside world.