The primary romantic interest for Ruth, who shares a deep connection with her on Block Island. He is torn between his life in Boston and his unresolved feelings for Ruth.

A mentor and surrogate mother to Ruth, whose death catalyzes significant changes in Ruth’s life. She is a successful photographer who provided emotional and artistic encouragement.

Initially a casual romantic interest for Ruth, representing the transient lifestyle she leads. He later reveals greater emotional depth and seeks a more committed relationship.

Ruth’s best friend and roommate, who provides support and confronts Ruth about her stagnant life. She actively pursues her career goals and offers stability.

Ruth’s emotionally distant father, who struggles to communicate effectively with her. His actions stem from a desire to provide Ruth with support through Diana.

Ruth’s deceased mother, whose hidden past and artistic ambitions shape Ruth's understanding of her family. Her story influences Ruth’s personal decisions.

Diana’s sister and Charlie’s mother, who views Ruth with suspicion and reinforces social hierarchies on the island. Her actions are influenced by her complex grief.

Charlie’s fiancée, representing the stable life he has chosen. She faces her own challenges and becomes a figure of strength and directness in the narrative.