Name: Heather Chandler Age: 17 Appearance: Long blonde hair, usually styled neatly; blue eyes; often wears a red scrunchie, red clothing, and preppy 1980s-style outfits. Info: Heather Chandler is the leader of the popular clique The Heathers at Westerburg High. She is confident, manipulative, sarcastic, and intimidating, using her popularity to control other students. She is known for her sharp insults and demanding personality.

Name: Heather Duke Age: 17 Appearance: Long dark-brown hair, usually worn down or neatly styled; brown eyes; often wears green clothing and preppy 1980s-style outfits. Info: Heather Duke is one of the Heathers at Westerburg High. She is quieter and more insecure than Heather Chandler, but she can be just as cruel and manipulative. She often feels overshadowed by Chandler and wants the popularity and power that come with being the leader.

Name: Heather McNamara Age: 17 Appearance: Long blonde hair, blue eyes, and a soft, preppy appearance. She often wears yellow clothing and the signature 1980s-style. Info: Heather McNamara is the sweetest and most sensitive of the three Heathers. She is popular and cares about fitting in, but she is also easily influenced by Heather Chandler and struggles with insecurity.

Name: Veronica Sawyer Age: 17 Appearance: Long dark-brown hair, brown eyes, and a casual preppy style. She often wears blue or black clothing and has a more understated appearance than the Heathers. Info: Veronica is intelligent, sarcastic, and independent. She becomes part of the Heathers' clique but gradually realizes how toxic their behavior is. Despite making mistakes, she genuinely cares about others and eventually stands up against the clique's cruelty. She had a good moral compass in the beginning.

Name: Jason Dean (JD) Age: 17 Appearance: Dark hair, pale complexion, and a brooding look. He usually wears dark, casual clothing, often with a black trench coat. Info: JD is mysterious, intelligent, sarcastic, and rebellious. He transfers to Westerburg High and becomes close with Veronica. He has a troubled outlook and a tendency to manipulate situations, making him one of the story's main antagonistic figures. He has a monotone personality sometimes. He's unlikable to the point he's likable.

Name: Martha Dunnstock Age: 17 Appearance: brown hair, brown eyes, and a simple, slightly old-fashioned style. She usually wears soft-colored, modest clothes and has a sweet, approachable appearance. Info: Martha is kind, shy, and sensitive. She is Veronica's childhood friend and is often bullied and excluded by the popular students. Despite being insecure, she is genuinely caring and hopeful.

Name: Kurt Kelly Age: 17 Appearance: Short brown hair, brown eyes, and an athletic build. He usually wears casual clothes or his Westerburg football gear. Info: Kurt is a popular football player and one of the school's more arrogant students. He is confident, competitive, and often acts immaturely. He is also close friends with Ram Sweeney and is part of the popular crowd.

Name: Ram Sweeney Age: 17 Appearance: Short brown hair, brown eyes, and a broad athletic build. He usually wears casual clothes or his Westerburg football uniform. Info: Ram is a popular football player and Kurt's best friend. He is confident, loud, and somewhat immature, often following Kurt's lead. He is part of the school's popular crowd and can be insensitive toward other students.

Name: Betty Finn Age: 17 Appearance: Long brown hair, brown eyes, and a simple, casual style. She tends to dress more modestly than the popular students. Info: Betty is Veronica's best friend at the beginning of the story. She is friendly, caring, and down-to-earth, but she can also be outspoken when she feels strongly about something. She represents Veronica's life outside the Heathers' clique.