Kieran is a 30-year-old physiotherapist living in Sydney who returns to Evelyn Bay to help move his father into assisted living. He carries a heavy burden of guilt over a tragic boating accident twelve years ago that resulted in the deaths of his brother and a friend. Now a devoted partner and father, he struggles to reconcile the peaceful life he has built with the hostility and whispers of the town locals who still blame him for the past.

Sean is an eco-conscious local who runs a charter boat business taking tourists on deep-water dives to shipwreck sites. He is a thoughtful, quiet man who stayed in Evelyn Bay following the tragic storm that claimed his brother Toby's life. He serves as a mentor and surrogate father figure to his nephew, Liam, while trying to compartmentalize the grief that still shadows his daily routine.

Mia is Kieran's partner and a former resident of Evelyn Bay. She moved to Sydney after the storm, where she later reconnected with Kieran during his darkest emotional period, offering him acceptance without judgment. As a new mother returning to her hometown, she manages the awkwardness of old acquaintances and the lingering sorrow of losing her high school best friend.

Gabby is the younger sister of Olivia and the best friend of Mia. A shy teenager who disliked the unwanted attention of older boys, she disappeared on the same day as the devastating storm that claimed the lives of two local men. Only her purple backpack was ever recovered, leaving her fate an unresolved wound for her family and the community.

Audrey is Kieran and Mia's three-month-old infant daughter. Strapped to her parents' chests or resting on the beach, she is a constant, quiet observer of the town's tense atmosphere. She acts as a physical anchor for Kieran, keeping him focused on his present life rather than his past mistakes.

Bronte is a university art student from Canberra spending her summer in Evelyn Bay. She works as a waitress at the local Surf and Turf restaurant while using the coastal scenery as inspiration for a photography and art project. Friendly and gregarious, she is well-liked by customers but remains somewhat of an outsider to the tight-knit local friend groups.

Ash is a local landscaping business owner who moved to Evelyn Bay as a teenager. Having dropped out of high school to start working, he maintains the same carefree, defensive attitude he held in his youth. He is eager to reconnect with Kieran and recreate their old social dynamic, seemingly unbothered by the town's lingering resentments.

Olivia is a local waitress who returned to Evelyn Bay a few years prior to care for her mother. Still possessing the beauty that drew attention in high school, she feels trapped by the small-town environment and the tragic history surrounding her family. She lives in Fisherman's Cottage near the beach with her summer roommate, Bronte.

Liam is a large, well-built 19-year-old who works at the local restaurant and assists with his uncle's dive business. He was only seven years old when his father died in the historic storm, an event that left him with deep, unhealed emotional wounds. He harbors intense bitterness toward Kieran and frequently acts out his frustrations through surly, aggressive behavior.

Brian is Kieran's father and a former physical education teacher who knew everyone in Evelyn Bay. He now suffers from advanced dementia, causing him to experience severe confusion, memory loss, and bursts of agitation. His deteriorating condition forces the family to sell their home and move him into an assisted living facility.

Verity is Kieran's mother, a woman stretched to her physical and emotional limits. She maintains a fragile facade of stability while acting as the sole, exhausted caregiver for her husband, Brian. She keeps her grief and the true extent of her struggles intensely private, creating friction when Kieran attempts to intervene in their lives.

Sergeant Renn is the head of the Evelyn Bay police force, which is facing permanent closure due to budget cuts. A young constable during the storm twelve years ago, he has aged significantly under the pressures of small-town law enforcement. He approaches his duties methodically but carries the stress of managing a community that quickly turns to gossip and panic.

Pendlebury is a detective from Hobart brought in to assist local law enforcement with a sudden death investigation in Evelyn Bay. As an outsider, she observes the town's tangled relationships objectively. She is persistent in her questioning, paying close attention to inconsistencies in the locals' stories while managing the defensive attitudes of residents.

George is a successful author of crime novels who is currently staying in Evelyn Bay to work on his latest book. He rents a home with an extensive garden that is undergoing renovations. Divorced and seeking a quiet retreat, he instead finds himself closely observing the townspeople as a real-life mystery unfolds around him.

Trish is the mother of Olivia and Gabby. Devastated by the disappearance of her youngest daughter twelve years ago, she suffers from severe depression and visibly wears her grief. She harbors intense bitterness toward the local police force, frequently conducting her own bizarre rituals on the beach to challenge their official theories.

Finn is Kieran's deceased older brother. Twelve years ago, he was a beloved member of the Evelyn Bay community, viewed as a model son and local hero. He died operating a boat during a rescue attempt in the massive storm, an event that shattered his family and left Kieran with deep psychological scars.

Toby is Sean's deceased brother and Liam's father. He started a local deep-water diving business before perishing alongside Finn in a boating accident twelve years ago. His death left a massive void in his family, deeply affecting his young son's development.

Julian is the manager of the local Surf and Turf restaurant and the owner of Fisherman's Cottage, where he rents rooms to his staff at a discount. He is also Liam's stepfather, taking an active role in the community and often displaying a lenient, protective attitude toward his stepson.

Lyn is a long-time waitress at the Surf and Turf. She is deeply integrated into the local gossip network and is quick to form opinions about the townspeople. She is particularly critical of Liam's behavior and the preferential treatment he receives from management.