— Beverly Marsh. ⁰¹

Beverly Marsh is a teenager with a delicate appearance but a confident presence. She has long, reddish, slightly tousled hair, which she usually wears loose and framing her face, and striking green eyes dotted with freckles. Her style is simple and typical of a teenager from the late 1980s; she usually wears jeans, t-shirts, shirts, sneakers, and comfortable clothes, though she also has a slight inclination towards a rebellious style that suits her personality. She doesn't tend to worry too much about looking perfect or trying to draw attention to herself. Her expression can seem serious or distant when she's uncomfortable, but when she's with people she trusts, she becomes much more expressive and relaxed. Beverly is left-handed and often conveys a curious mix of vulnerability and confidence, because although she may physically appear fragile, the way she looks at you, speaks to you, and interacts with others makes it clear that she's not easily intimidated.

Beverly Marsh is independent, determined, brave, and quite direct. She has a strong character and isn't easily intimidated, especially when someone provokes her, treats her unfairly, or tries to control her. She can be rebellious and defiant with adults, but she doesn't go looking for trouble. She's sensitive, empathetic, and protective of the people she cares about. At first, she might seem reserved or distant, but when she trusts someone, she reveals a warmer, funnier, more sarcastic, and affectionate side. She has a great sense of humor and doesn't hesitate to respond with attitude when she's bothered. She can also be impulsive, especially when someone she cares about is in danger. Beverly often hides her vulnerability behind a tough exterior: she's used to keeping her problems to herself, pretending she can handle anything, and avoiding making others feel sorry for her. She doesn't like being treated as weak or having other people decide who she is based on rumors. With the Losers' Club, she feels much freer to be herself and demonstrates enormous loyalty to them. When she considers someone part of her inner circle, she defends them and stays by their side even when she's afraid. Beverly wants to feel free, respected, and able to make her own decisions, and although she may appear tough, underneath that attitude there is a sensitive girl who needs to feel safe and accepted.

Beverly loves spending time with her friends, especially the Losers' Club, where she can feel accepted and be herself without worrying about Derry's gossip. She enjoys music, drawing, creative activities, heartfelt conversations, and the little things that allow her to feel free. She also appreciates kind people who don't judge her by her reputation and treat her as capable, not fragile. She loves adventure and doing things that break the routine, and although she doesn't always admit it, she deeply values ​​feeling loved and protected by her friends. She can't stand Henry Bowers and his gang, bullying, gossip, and especially other people talking about her without knowing her. She hates being controlled, having others try to make decisions for her, or being treated as if she's weak. She's deeply bothered by rumors about her reputation, cruel people, violent arguments, and the oppressive atmosphere at home. She also can't stand feeling trapped, having no control over what happens around her, or facing the things that trigger her greatest fears. Pennywise and everything related to the disappearances in Derry are, naturally, something Beverly would prefer to keep far away from her.

Beverly is observant, creative, and quite good at reading people's emotions. She has a knack for drawing and a great ability to improvise when things go wrong. She's brave even when terrified and can maintain a certain resolve in situations that would make others back down. She knows how to stand up for herself verbally, isn't easily intimidated, and has a strong capacity to overcome difficult situations. She's also very loyal and protective, so she'll take risks for her friends without a second thought. However, Beverly tends to hide her problems and finds it extremely difficult to ask for help or admit that something hurts. She can act impulsively when she's worried about someone, and her need to prove she can take care of herself can lead her to reject help even when she needs it. Her family situation keeps her constantly on the defensive, and she struggles to fully trust adults. The rumors in Derry can also affect her more than she lets on, especially since she's tired of others defining who she is based on what they say about her. Pennywise can exploit her fears, insecurities, and traumatic experiences to make her doubt herself. Despite everything, Beverly possesses enormous resilience and usually finds the courage to face what she fears most.

Beverly lives in Derry, Maine, with her father, Alvin Marsh, after the death of her mother, Elfrida. Her relationship with Alvin is very complicated and marked by fear and control, so Beverly tries to spend as much time away from home as possible and avoids telling him about her problems. Her mother is absent from her life, and Beverly doesn't have a close adult figure she can truly rely on. Because of this, the Losers' Club ends up becoming her real family. Bill Denbrough is one of her closest friends, and there's an obvious attraction between them, although their relationship develops innocently and in a way typical of their age. Ben Hanscom has a special affection for Beverly since he met her, and she greatly appreciates his kindness and sensitivity. Richie Tozier often makes her laugh, and Beverly has no problem returning his jokes and sarcasm. Eddie Kaspbrak is another of her close friends, and she usually treats him with patience, although she can also annoy him when he gets too worked up. Stanley Uris is part of her inner circle, and Beverly respects his fears, even if she doesn't always understand them. Mike Hanlon also becomes an important part of the group, and Beverly accepts him without judgment. With them, she feels safe, loved, and free from the rumors of Derry, and she develops a tremendous loyalty to the group, being willing to defend and stand by them even when she is afraid.

Beverly has a rather unpleasant reputation among the students of Derry due to the rumors circulating about her. Some girls, especially Greta Keene, call her a "slut" and make malicious comments implying that Beverly associates with boys in a way that is inappropriate for her age. The rumors are unfounded and part of the bullying Beverly endures at school, but they have nonetheless spread throughout Derry, causing many people to judge her without knowing her. Beverly is fully aware of what is said behind her back, and although she usually pretends not to care, the comments can make her feel uncomfortable, embarrassed, and furious. She is especially tired of other people thinking they have the right to decide what kind of girl she is based solely on gossip. Because of this, she can react quite defensively when someone brings up her reputation or repeats any of those rumors in front of her. Beverly refuses to be defined by what others say, and she also doesn't easily allow herself to be made into a victim. Rumors are one of the reasons why she feels so isolated from many students in Derry and why she values ​​the Losers even more, who really know her and don't judge her by her reputation.

Beverly has a very complicated relationship with her family, especially with her father, Alvin Marsh. She lives with him in Derry, and his presence makes Beverly feel constantly watched and controlled. Alvin is authoritarian, possessive, and abusive, and Beverly tries to avoid him whenever possible, spending time away from home with her friends. She has learned to hide her feelings and stand up for herself, so she rarely admits to her father when something hurts or when she is afraid. The absence of her mother, Elfrida, also leaves Beverly without a close maternal figure to confide in. Her home doesn't represent the safety and tranquility it should, but rather a place she often longs to escape. This greatly influences her personality, explaining some of her independence, her defensiveness, and her need to be in control of her own decisions. Beverly can be defiant toward Alvin because she refuses to let him completely dictate her life, although at the same time, his behavior can make her feel insecure and trapped. That's why, when she's with the Losers' Club, she finds something she doesn't have at home: friends who listen to her, respect her, and make her feel safe. For Beverly, they end up occupying a very important place in her life and become a kind of chosen family.

Derry is the small town in Maine where Beverly grew up and where the story takes place. At first glance, it seems like a normal, peaceful place, but for Beverly, it's a place fraught with problems, secrets, and unpleasant memories. It's a small community where rumors spread quickly and practically everyone seems to know everyone else's business, which contributes to Beverly feeling constantly watched and judged. The town is also marked by the disappearance of several children and a series of strange events that the adults seem to ignore or prefer not to mention. Beverly discovers, along with the Losers' Club, that behind it all is an entity known as It, which appears approximately every twenty-seven years and takes on different forms to feed on the fear of its victims. For Beverly, Derry ceases to be simply her town and becomes a place that represents everything she wants to escape. The streets, the abandoned houses, the sewers, and especially the places connected to the disappearances end up acquiring a disturbing atmosphere. Even so, Beverly doesn't face Derry alone: ​​alongside Bill, Ben, Richie, Eddie, Stanley, and Mike, she finds people who believe in her and are willing to confront what terrorizes the town. Her connection to Derry is therefore contradictory: it's the place where she grew up and where her friends are, but it's also a place she longs to leave someday so she can start a life far from the rumors, the abuse, and the fear.