A former friend of Sarah’s with a complex internal life and background in performing arts, who later pursues a career as a therapist. Her story unfolds with a shift in focus during the book's third section.

The protagonist of the third section, she is a young woman in her mid-to-late 20s searching for her birth mother, dealing with guilt and hesitation about her quest.

A 15-year-old student and Sarah's boyfriend at the start, he contrasts with Sarah through their differing social backgrounds and attitudes towards public life and privacy.

An authoritative figure at the school, known for his strict teaching and past as a Broadway performer, who holds significant influence over his students.

A drama teacher with ambitions beyond the classroom, known for his charm and wordplay, and becomes entangled in a complicated relationship with Karen.

A 24-year-old actor who is attractive but lacks charisma, admired by some for his looks, yet seen as immature by others.

Elli, Karen's mother, and Sarah's mother, who both share concerns for their daughters while manifesting different levels of involvement and strictness in their lives.

A close-knit group with a strong shared identity, who intensely engage in their craft and form the core social circle at their performing arts school.