Brecia is a fiercely independent woman with straight brown hair and wide hazel eyes who works and lives in a decorated duplex in Colorado. Following her brutal murder, she becomes an invisible, inaudible ghost determined to seek justice. She is stubborn, observant, and highly protective. She chooses to stay close to her killer's family to monitor him and try to prevent further violence.

Skye is a quiet, sheltered 18-year-old Latina woman living with her close-knit family in Kuna, Idaho. She holds an innocent crush on a handsome regular customer at her café. Deeply connected to her family and hesitant to step out of her comfort zone, her sudden transition into a spirit leaves her closely tethered to her grieving parents as she watches them search for her.

Meghan is a thoughtful, introspective woman looking for romance through online dating. Left isolated in the wilderness following her murder, she discovers unique aspects of the spirit world, including the ability to view memories like movies. She longs to cross over but remains tethered to the living world out of a desire for her body to be found.

James is a handsome, charismatic computer programmer who uses his pleasant demeanor to hide a sadistic, violent nature. Operating under various aliases on dating apps, he targets women while simultaneously maintaining the facade of a devoted family man in his suburban home. His remote basement office allows him to lead a digital double life.

April is James's patient, submissive wife who appears as a rail-thin blonde woman dedicated to domestic duties and her daughters. Financially and emotionally dependent on her husband, she attempts to fulfill traditional expectations while occasionally suppressing faint inklings that something is wrong in her marriage.

Officer Domanska is a diligent, intuitive police investigator handling Meghan's case in Utah. She proves determined to trace the few available clues and seems to possess a subtle, instinctual sense that draws her toward important evidence when logical policing stalls.

Ken is Skye's well-intentioned coworker who initially perceives James as a harmless regular customer. He cares about Skye and assists her mother in trying to piece together the events of the day she disappeared by checking security cameras.

Skye's mother is a fierce, devoted parent who refuses to let the police brush off her 18-year-old daughter's disappearance. She tirelessly hunts for security footage and questions locals to track down what happened.

Emma is one of James and April's two young daughters. She lives a sheltered suburban life, completely oblivious to her father's double life and the invisible spirits lingering in her home.

Kimmie is the other young daughter of James and April. Like her sister, she is innocent and relies on her mother for constant care and protection.

Oscar is the family cat belonging to James and April. He possesses an uncanny animal instinct, demonstrating a clear dislike for James while tolerating the invisible ghostly visitors in the house.

Bubbie is Meghan's deceased grandmother. She warmly guides Meghan through the rules of the afterlife, explaining how spirits can traverse ancestral memories while warning of the risks of straying too far.

Sharese is Meghan's best friend. She is the only person who knows Meghan is meeting a man called Jimmy, though his fake identity leaves her powerless to help when Meghan goes missing.

Nicole is a woman who matches with James on a dating app before he moves to Utah. During their date, she correctly senses his sinister intentions and trusts her intuition to leave before he can harm her.

Elle is a woman who dates James and is covertly drugged by him. She survives the encounter but becomes suspicious, leading James to angrily retaliate by vandalizing her property.

Marjorie is James's stepmother, implied to have been abusive toward him during his childhood. She owns an isolated cabin that becomes critical to James's plans to hide his family.

Officer Willis is a local police officer in Idaho who helps secure frozen yogurt shop security footage for Skye's desperate parents, officially kickstarting the investigation into her disappearance.