Windy is Lucy’s friend at school, characterized by her large size, cheerfulness, and a love for animals and musicals. She supports Lucy’s quirks and becomes a key figure in her social life.

A seventh-grade student with a talent for photography, Levi is one of Lucy's friends who shares her love for animals. He helps Lucy through personal challenges and contributes to her growth.

Lucy’s grandmother and primary guardian, who homeschools her and supports her educational and personal development. Nana plays a crucial role in Lucy’s decision to attend middle school.

Lucy’s math teacher, known for his mathematical prowess and mentorship, encourages her to embrace her abilities. His role extends beyond teaching as he becomes a mentor figure to Lucy.

A peer of Lucy’s at middle school, Maddie is known for her confident social presence and is often in conflict with Lucy. Her attitudes and actions pose challenges for Lucy.

Lucy’s uncle and a Marine who prompts her transition from homeschooling to attending middle school in hopes of improving her social skills.

Owner of The Pet Hut, Claire manages an animal rescue center where Lucy volunteers. Her interactions with Lucy help her process emotions and navigate friendships.

Windy’s mother, Adele is portrayed as an elegant and stylish woman. She is involved in organizing social events and exhibits a supportive yet lightly critical demeanor.

Maddie’s mother, a take-charge individual who has high expectations for her daughter. Her behaviors influence Maddie’s actions and affect her daughter’s interactions with Lucy.