Ellie's mother, a former music teacher, struggles with adapting to mountain life and the emotional fallout from her husband's accident. Initially distant, she gradually changes as she observes Ellie's healing abilities and the community around them.

Cate, often referred to as Mrs. Cleary or "the old hag," is an elderly woman living on the mountain who is deeply knowledgeable about natural healing methods. She forms a bond with Ellie, teaching her about alternative remedies and sharing a history with Ellie’s family.

Ellie’s father is a strong and compassionate man who, after an accident, remains in a coma for much of the story. He is an inspirational figure for Ellie, who learns many survival and healing skills from him before his accident.

Samuel is Ellie's younger brother, who shares her adventurous spirit and adapts well to mountain life. Despite his young age, he tries to act as the man of the house during their father’s absence.

Larkin is Cate’s grandson and Ellie’s friend, known for his mysterious presence on the mountain and his gift of carved figures. He shares a connection with Ellie through their shared experiences of family challenges.

Esther is Ellie’s older sister, who struggles to adapt to mountain life and initially holds Ellie responsible for their father's accident. She slowly begins to change and reconsider her view of her sister.

Larkin’s mother is a reclusive figure dealing with grief after her husband's death and is highly protective of Larkin. She prefers traditional mountain life, desiring her son to remain within that world.