Sarah is a successful nonprofit director living in Los Angeles who runs the Clowndoctor charity with her ex-husband. She has spent nineteen years distancing herself from her English hometown and a tragic accident that caused a profound family rift. Confident and capable in her professional life, she struggles with an overwhelming need for control when the man she falls in love with suddenly ceases communication.

Eddie is a carpenter and furniture builder who lives and works in a converted barn in Gloucestershire. He possesses a calm, grounded demeanor that contrasts sharply with the frantic pace of modern dating. He carries a heavy burden of family duty, dedicating much of his time to caring for his mother and writing letters to his deceased sister.

Joanna is a blunt, vivacious woman with a warm heart who fiercely protects her inner circle. She raises her seven-year-old son as a single mother while maintaining hope for a genuine romantic connection, despite a history of unreliable partners. She offers grounded, unsentimental advice to her friends.

Tommy is Sarah's oldest childhood friend, having moved to Los Angeles when they were teenagers. He works in sports consultancy and uses physical fitness as a shield against lingering adolescent insecurities. He relies heavily on his chosen family for emotional stability.

Jenni is Sarah's closest friend in Los Angeles and an employee at the Clowndoctor charity. She is deeply romantic, endlessly optimistic, and highly self-sacrificing. She focuses intensely on caring for others to distract herself from the grueling physical and emotional toll of her fertility treatments.

Hannah is Sarah's younger sister, remembered as a fearless and bold child. A tragic car accident created a massive rift between the sisters, resulting in nineteen years of total silence. She lives in Gloucestershire and attends counseling to manage her grief and anger.

Rueben is Sarah's ex-husband and the co-founder of the Clowndoctor charity. He is a passionate theater practitioner who treats hospital clowning as a specialized therapeutic art rather than basic entertainment. Their seventeen-year marriage ended peacefully but decisively due to incompatible desires regarding parenthood.

Carole is Eddie's mother, profoundly shaped by a devastating family tragedy. She relies entirely on her surviving son for daily care and emotional stability. Her grief has hardened into anger over the years, making her highly dependent and deeply isolated from the broader community.

Kaia is Rueben's new girlfriend, characterized by her wholesome, mindful lifestyle. She entered the nonprofit sector following a terrible personal tragedy, choosing to channel her profound loss into helping critically ill children.

Sarah's elderly grandfather is a cantankerous man requiring full-time care at home. Beneath his famously grumpy exterior, he harbors a quiet, lifelong regret over an abandoned youthful romance.

Alex is Eddie's deceased younger sister whose absence defines much of her family's current reality. She remains a vivid presence in her brother's life through the letters he writes to process his grief and keep her memory alive.

Javier is Jenni's husband. He supports his wife through the stressful cycle of in-vitro fertilization, carrying his own quiet sorrow alongside her desperation to build a family.

Rudi is Joanna's seven-year-old son. He is highly observant for his age, quickly picking up on the emotional distress of the adults around him.

Alan is Eddie's friend and football teammate. He watches out for his friend's well-being and attempts to intervene when he fears Eddie is taking on too much responsibility at home.

Jeanne is a bereavement counselor. She encourages her clients to process their complicated grief through writing and gently challenges their rigid senses of familial obligation.

Bradley is Sarah's teenage ex-boyfriend. His reckless behavior behind the wheel caused a catastrophic accident that forever altered the lives of everyone in the surrounding community.