Lucy is a Toronto-based florist who struggles with the expectations of her strict parents. She finds solace in her close friendship with Bridget and her visits to Prince Edward Island. She is creative and driven, running her late aunt's floral business, In Bloom, though she secretly dreams of starting a cut-flower farm. Her one-night stand with a local oyster shucker turns complicated when she discovers his true identity.

Bridget is Lucy's fiercely independent best friend and former roommate. Growing up on Prince Edward Island, Bridget serves as Lucy's anchor and primary support system. She is preparing for her wedding to her fiancé, Miles, but harbors lingering hurt over her estranged childhood friendship with Joy. She strictly forbids Lucy from dating her younger brother.

Felix is Bridget's younger brother, whom Lucy initially meets as a handsome oyster shucker. Felix is thoughtful, bookish, and physically striking. He builds vacation cottages with his friend Zach and shares an intense, complicated connection with Lucy that he agrees to hide from his protective sister.

Stacy is Lucy's free-spirited, eccentric aunt and the former owner of the Toronto floral shop In Bloom. She provides Lucy with unconditional love and a safe haven away from the stifling expectations of Lucy's parents. She nurtures her niece's passion for floral design and encourages her to follow her creative instincts.

Joy is a local Prince Edward Island resident who is Felix's former fiancée and Bridget's estranged childhood best friend. Her brief, teenage engagement to Felix and the subsequent breakup caused a deep rift in her relationship with Bridget, making her a sensitive topic among the friend group.

Miles is Bridget's fiancé. He is a steadfast presence in Bridget's life, though his career opportunities introduce sudden, stressful complications into their relationship as their wedding date approaches.

Farah is a talented florist who works alongside Lucy at In Bloom. She serves as Lucy's trusted right-hand woman, helping to manage the shop operations. She occasionally chides Lucy for prioritizing corporate work over her personal well-being.

Zach is Felix's best friend and business partner on Prince Edward Island. Together, they build a series of vacation homes called the Salt Cottages. He is observant, supportive, and frequently hosts gatherings for their social circle.

Ken is Bridget and Felix's father. He is a warm, welcoming presence who owns Summer Wind, the family's seaside cottage on Prince Edward Island. He provides Lucy with a sense of the relaxed family dynamic she always craved.

Christine is Bridget and Felix's mother. She maintains a sprawling, lively home at Summer Wind and treats Lucy with an openness and affection that contrasts sharply with the formality of Lucy's own parents.

Lyle is Lucy's older brother and a former high school hockey star. Growing up, he commanded the bulk of their parents' attention and resources, leaving Lucy to feel sidelined within her biological family.

Ray is Joy's father and the owner of McInnis Seafood. He is Felix's former boss and mentor, having taught Felix the intricacies of working with oysters.

Carter is one of Miles's long-term friends whom Lucy dates to curb her loneliness. He is pleasant but lacks a deep emotional connection with Lucy, illustrating her lingering feelings for Felix.

Lillian is the events manager for the Cena hospitality group. She represents a lucrative corporate contract opportunity for In Bloom that forces Lucy to evaluate her true career priorities.