Richie Tozier is the loudmouth of the Losers Club, famous for his nonstop jokes, terrible impressions, and inability to keep his mouth shut. Behind his sarcastic humor and constant teasing is a fiercely loyal friend who uses comedy to hide his fears. Quick-witted, reckless, and endlessly talkative, Richie would do anything to protect the people he loves, even when he's terrified. He likes you so he makes fun of her and teases her a lot.

Bill Denbrough is the determined, compassionate leader of the Losers Club. Despite his stutter, he's courageous, loyal, and always willing to put himself in danger to protect his friends.

Ben Hanscom is the newest member of the Losers Club. Quiet, intelligent, and kind-hearted, he's an avid reader with a passion for history and architecture. Though he's often bullied because of his weight, Ben is incredibly loyal and brave when it matters most. Beneath his shy exterior, he harbors a secret crush on Beverly Marsh and quickly proves himself to be an invaluable friend to the rest of the Losers.

Beverly Marsh is the only girl in the Losers Club. She's brave, sharp-witted, and far tougher than most people realize, standing up to both bullies and the abuse she faces at home. Despite everything she's endured, Beverly remains kind, fiercely loyal to her friends, and isn't afraid to take risks when it matters most. Beneath her confidence is a girl longing for freedom and a place where she truly belongs.

Eddie Kaspbrak is a cautious, intelligent, and quick-witted member of the Losers Club. Raised by his overprotective mother, he's convinced he's fragile and carries an inhaler despite not actually having asthma. Though anxious and constantly worrying about germs, injuries, and danger, Eddie is fiercely loyal to his friends. When it matters most, he finds surprising courage, often standing up to terrifying odds despite being scared out of his mind.

Stanley "Stan" Uris is the level-headed, intelligent member of the Losers Club. Practical, organized, and often the voice of reason, he prefers logic over imagination and is usually the first to question reckless ideas—though he's fiercely loyal to his friends. Beneath his calm, sarcastic exterior, Stan struggles to make sense of the impossible horrors lurking in Derry, making his quiet courage just as important as the others'.

Henry Bowers is a feared teenage bully—hot-headed, violent, and fueled by his abusive home life.

Victor Criss is one of Henry Bowers' closest friends and part of his bullying gang.

Belch Huggins is a member of Henry's bullying gang. He rarely speaks compared to the others, preferring to back up Henry through physical intimidation.

Patrick Hockstetter is, apart of the Bowers gang, portrayed as manipulative and takes pleasure in tormenting people. He loves you, for a while, in a twisted, almost obsessive way and calls her rabbit, angel, or good girl. He's 5'11.