Bella is a mother who vacationed at a local Tome caravan park as a middle-class teenager 15 years ago. She returns to the newly opened luxury hotel holding onto secrets from her past. She adopts a carefully constructed persona, altering her appearance and using a fake biography, to hide her identity while attempting to force a confrontation regarding events from her youth.

Francesca is the wealthy owner of The Manor. As a teenager, she gathered locals and summer visitors for her amusement, treating them with casual contempt. Now an adult, she cultivates an enlightened, spiritually evolved persona, using holistic healing practices as a branding tool while maintaining a fierce sense of entitlement over the town's land.

Eddie is a sensitive 19-year-old local from Tome who works at the hotel. His family runs Seaview Farm, and his father resents the hotel's presence. Eddie feels like an outsider in his own family due to his inability to work on the farm and the lingering grief over his estranged older brother. He remains superstitious and deeply respectful of the local woodland legends.

Jake is Eddie's older brother, a local boy from Tome who struggles with addiction and estrangement following the events of the summer of 2010. He eventually channels his focus into working as a diligent, detail-oriented detective, prioritizing cold cases to right historical wrongs and find personal redemption.

Owen is an avant-garde architect who redesigned The Manor into a boutique hotel. He maintains a carefully crafted, wealthy persona that hides his working-class past as a local fisherman's son in Tome. He is highly image-oriented and harbors deep-seated resentments from his youth while keeping significant secrets from his wife.

Cora is a working-class local girl from Tome who interacts with the wealthy teenagers at The Manor 15 years ago. She works as a cleaner and at the local pub, eventually becoming entangled in the dangerous dynamics of the Meadows family.

Hugo is one of Francesca's older twin brothers. Arrogant and deeply entitled, he uses his wealth and status to act without consequence, demonstrating a callous disregard for the local townspeople and exploiting them for entertainment.

Oscar is Francesca's other older twin brother. Like his siblings, he operates with a sense of extreme privilege, following Francesca's lead and participating in the exploitation of the local community.

Known to his grandchildren as Grandfa, Lord Meadows is the former patriarch of the estate. He is an arrogant, politically connected man who frequently uses his wealth to protect his family's reputation and silence locals who threaten his lifestyle.

Michelle is a manager at The Manor hotel who works diligently to maintain order during the opening weekend. She has taken elocution lessons to mask her local, working-class accent to fit in with the wealthy clientele, though she harbors deep, long-standing resentment toward the Meadows family.

Delilah is Eddie's ex-girlfriend and a talented singer from Tome. She holds strong anti-establishment views and actively protests against The Manor's privatization of public lands alongside her new boyfriend.

Nathan is a local drug dealer and aspiring musician. Rebellious and hostile toward the wealthy hotel guests, he frequently instigates conflicts to assert the locals' right to access the town's land and woods.

Graham is Nathan's father and a previous tenant at the Manor who runs a local caravan park. He struggles with severe alcohol addiction but maintains a strong belief in the local legends surrounding the woods and the protective nature of The Birds.

Ruby is a staff member at The Manor who assists with serving guests and organizing celebrations. She observes the strange occurrences around the hotel, including the erratic behavior of the guests and wildlife, with growing concern.

Dan is a staff member at The Manor who assists Eddie with undesirable tasks around the property, including cleaning up unsettling discoveries in the woods.

A local dairy farmer who runs Seaview Farm near The Manor. He fiercely resents the hotel and its wealthy owners, struggling with the financial precarity of his farm and the historical fracture in his family following the departure of his older son.

Eddie's mother is a hardworking local woman who secretly takes on cleaning shifts at The Manor to help support her family, despite her husband's strict opposition to the hotel.

A police detective who partners with DI Walker to investigate the mysterious events occurring in and around The Manor following the solstice.

A local clergy member who explains the region's deep connection to pagan rituals and the historical presence of vigilante justice in Tome to visiting outsiders.

The owner and operator of the local pub. She is fiercely protective of the townspeople and deeply suspicious of anyone associated with The Manor.

An older local woman who works as a Reiki healer at the hotel. She uses traditional folk methods, such as cracking an egg into water, to divine the future and warn Francesca of impending danger.

Francesca's formidable grandmother, who owned the estate alongside her husband and ultimately left the property to Francesca in her will.

Bella's young daughter, whose birth serves as the catalyst for Bella's return to Tome to seek justice for the events she witnessed as a teenager.