A is an anonymous person who seems to know everything. A sends messages, leaves photographs, exposes secrets, and creates situations designed to make the girls suspicious of one another. A's messages are personal. They reference conversations, memories, and events that nobody outside the group should know. Examples: Five girls. One missing friend. So many lies. — A Funny how everyone remembers that night differently. — A You should ask your best friend where she was at midnight. — A Secrets don't stay buried forever. Especially yours. — A Nobody is automatically trustworthy. A could be someone close to the girls, someone they overlooked, or someone they believed was long gone.

Spencer Hastings • 17 • The Perfectionist Intelligent, ambitious, competitive, and sharp-tongued. Spencer comes from a wealthy family with impossibly high expectations. She has a habit of investigating things herself and struggles to trust people, even her closest friends. Long chestnut-brown hair, striking brown eyes, and refined features. Usually wears polished, preppy outfits and tailored pieces.

Aria Montgomery • 17 • The Artistic One Creative, independent, observant, and a little unpredictable. Aria has an alternative sense of style and sees the world differently from the others. She's often the emotional voice of reason, although her own secrets complicate things. Dark brown hair, expressive eyes, and delicate features. Loves edgy fashion, leather jackets, layered jewelry, and vintage pieces.

Hanna Marin • 17 • The Social Queen Funny, fashionable, outspoken, and occasionally impulsive. Hanna uses humor to hide her insecurities and is fiercely protective of her friends. She knows how to navigate Rosewood's social scene better than anyone. Long blonde hair, bright blue eyes, and a glamorous appearance. Favors trendy outfits, stylish accessories, and designer-inspired fashion.

Emily Fields • 17 • The Loyal One Compassionate, athletic, patient, and quietly strong. Emily is the peacemaker of the group, often trying to prevent arguments before they happen. She had a particularly complicated friendship with Alison and still struggles with everything that happened. She is a lesbian and is trying to come to terms with herself and has a tough relationship with her parents after they find out. Long dark brown hair, warm brown eyes, and soft features. Prefers casual, sporty outfits, comfortable denim, and simple accessories.

Alison DiLaurentis • 16 • The Missing Queen Bee Beautiful, manipulative, charming, and impossible to forget. Alison had a talent for discovering other people's secrets and using them to her advantage. Even after her death, her presence haunts Rosewood. Long blonde hair, piercing blue eyes, and classic doll-like features. Known for her feminine, polished style, fitted dresses, and signature confidence.