Blair is a recent Pepperdine University graduate who majored in economics to secure a lucrative consulting job in New York City. She took this career path to financially support her single mother, suppressing her childhood dream of becoming a writer. Returning to Seabrook forces her to confront her grief over her great-aunt's illness and her unresolved feelings regarding her past. She is deeply loyal but struggles with a fear of abandonment stemming from her absent father.

Declan is the manager of the local coffee shop and Blair's former best friend from childhood. Once a high school football star bound for the NFL to satisfy his demanding father, a tragic accident ended his athletic career and left him with a slight limp. He has since discovered a passion for building and renovating. He appears calm and collected, yet harbors his own profound grief over his altered future and his estrangement from Blair.

Lottie is Blair's great-aunt, a resilient and financially successful woman who immigrated to the United States from Vietnam during the war. Starting with a single convenience store, she built a lucrative franchise. She acts as a foundational pillar of love and stability for Blair and Blair's mother, having taken them in when Blair's mother fled an abusive marriage. She is currently battling terminal lung cancer.

Blair's unnamed mother is a dedicated, hardworking woman who fled an abusive husband when Blair was four years old. She works as a cashier at one of Lottie's convenience stores to maintain a sense of personal independence. Having shielded Blair from the worst of her past trauma, she remains a constant presence in Seabrook, coping with her own pain as Lottie's illness progresses.

Faye is one of Blair's close friends from Pepperdine University. She is a newlywed stay-at-home wife who got engaged during her senior year. Her seemingly perfect, settled life occasionally makes Blair feel insecure about her own uncertain future.

Roshi is a close college friend of Blair from Pepperdine University. She is currently starting law school and brings a driven, academic perspective to their friend group. She acts as a sounding board for Blair as Blair handles her complex return to Seabrook.

Harper is a blonde teenage employee at the local coffee shop managed by Declan. She helps train Blair during her initial shifts. Harper has a troubled past involving the foster care system, and Declan offers her a stable work environment.

Randall is Declan's demanding father. During Declan's youth, Randall placed immense pressure on his son to succeed in football and secure a spot in the NFL, directly tying his approval to Declan's athletic achievements.

Gwen is Declan's mother. She is highly protective of her son, particularly in the wake of the severe accident that changed the course of his life. Her protective instincts sometimes manifest as skepticism toward those she fears might hurt him.

Rosie is a former high school classmate of Blair who bumps into her at the local bookstore. She expresses surprise that Blair has returned to Seabrook instead of moving to New York.

Calvin is a customer at the Seabrook Coffee House who takes an interest in Blair, prompting a spark of jealousy and protectiveness from Declan.

Emily is a local real estate agent hired to evaluate the cottage Lottie offers to Blair. She provides Blair with the shocking financial appraisal of the property.