Tallulah is a 19-year-old college student studying to become a social worker. She feels insecure about her physical appearance and worries that young motherhood has aged her prematurely. She experiences significant anxiety over her restrictive relationship with her infant's father. Eager for freedom, she becomes fascinated by the chaotic and artistic lifestyle of a wealthy classmate.

Kim is a divorced, youthful-looking mother who works at a local pub. She desires a traditional family unit for her daughter and occasionally overlooks negative behaviors to encourage that outcome. When her daughter vanishes without a trace, Kim channels her intense grief into an organized, relentless search for answers.

Sophie is a 34-year-old mystery author writing under the pen name PJ Fox. She relocates from London to the countryside out of a quiet fear of ending up alone. She investigates a local cold case after finding a cryptic cardboard sign nailed to a fence, using the amateur detective work to distract herself from her severe writer's block.

Scarlett is the wealthy daughter of a hedge fund manager, living in a massive historic home called Dark Place. She projects a confident, rebellious persona that attracts a devoted following of peers. She uses her extravagant lifestyle and social power to manipulate those around her, hiding deep psychological troubles behind a facade of artistic freedom.

Zach is a young father who initially left his pregnant girlfriend but returns to claim his place in her life. He feels deeply insecure about his social standing compared to the wealthy students in the village. He closely monitors his girlfriend's movements, uses emotional manipulation during arguments, and leverages their child to maintain his presence in her life.

Shaun is the new lead teacher at Maypole House, a school primarily serving wealthy students. He is a divorced father who takes the countryside job to afford his children's expensive private education. He worries about how his new girlfriend will adapt to rural living away from her London routine.

Liam is a 21-year-old classroom assistant at Maypole House. He grew up on a local farm before becoming involved with the wealthy student crowd during his teen years. He remains employed at the school long after his peers move away, harboring secrets regarding the night of the disappearance.

Dominick McCoy is the police detective assigned to investigate the missing young parents. He conducts formal interviews and coordinates searches of the dense local woods. He maintains a professional but increasingly sympathetic line of communication with the missing girl's mother.

Megs is Zach's mother. She maintains a detached attitude regarding her son's disappearance, firmly believing the young couple simply eloped to escape their responsibilities. Her lack of panic creates severe friction with those who fear a tragic outcome.

Kerryanne is the matron at Maypole House. She welcomes new staff to the campus and eagerly shares local gossip regarding the nearby abandoned mansion. She supports her daughter's social media ambitions while managing the daily operations of the student housing.

Lexie is the daughter of the Maypole House matron. She attended the fateful pool party at Dark Place before leaving early in the evening. She curates an idealized, deceptive lifestyle on social media, passing off the grand school buildings as her own private estate.

Joss is the wealthy owner of Dark Place and wife of a hedge fund manager. She acts dismissive of the local townspeople and views major disruptions simply as inconveniences to her travel schedule. She uses her extreme wealth to insulate her family from regular society.

Noah is the toddler son of the missing teenagers. He spends his days being cared for by his grandmother in the wake of the disappearance. His existence serves as the primary anchor keeping his young parents tied to their local town and to each other.

Mimi is a student at Manton College and part of the popular, wealthy social circle. She attends local parties and closely follows the dictates of her friend group's informal leader. She fears social exclusion and modifies her behavior to remain in the inner circle.

Ryan is a young man living at home with his mother. When his sister goes missing, he accompanies his mother on physical searches of the neighboring estates and the dense surrounding woods. He provides practical support during the early days of the family crisis.

Jim is Kim's ex-husband and Tallulah's father. He visits to offer his perspective on the disappearance, bringing a pragmatic viewpoint to the family crisis. He points out financial details that contradict theories of a planned runaway.

Chloe is a student at Manton College who considers herself a close peer to the missing girl. She expresses open discomfort regarding the wealthy student clique on campus. She feels alienated when her friend begins spending time with a new, rebellious crowd.

Simon is married to Megs and lives in the local village. He shares his wife's lack of urgency regarding the disappearance of his son, assuming the young couple left on their own terms.

Jack is a young boy visiting his father's new cottage at Maypole House. He complains that the old building smells strange, pointing out his discomfort with leaving his familiar London environment for the countryside.

Lily travels to the rural Maypole House campus to spend the weekend with her father. She worries about encountering spiders in the country house, preferring her familiar city environment.

Pippa is the ex-wife of the new Maypole House head teacher. She drops her children off at the rural campus, openly expressing her frustration about the lengthy drive from London.