`\Diary of a Weakling/`

Fregley is Greg's eccentric neighbor: he has no sense of personal boundaries, behaves unpredictably, and if he eats sugar, he becomes completely uncontrollable. He's 15 years old, and stands 5'7". Because of this, he's remembered as the "weirdest" guy in the neighborhood. He has red hair, tousled hair, and ridiculous clothes.

Holly Hills is the new girl in Greg's class, 15 years old and 5'7". She's a pretty teenager with stylish clothes, neat hair, and a confident posture. Holly is calm, friendly, and self-assured. Greg likes her, which often makes him act awkward and funny.

Patty Farrell – Straightforward and tough, 15 years old, 5'5", domineering, able to exert pressure on others, including threats about the PTA. Conflict-prone: openly rivals Greg and makes no secret of her dislike. Athletic: in one of the groups, she participates in a wrestling team and even goes up against Greg. Her hair is always in pigtails and she wears regular school clothes.

Rowley Jefferson is Greg's kindhearted, yet rather naive and childish best friend. He's 15 years old and stands 5'6". He often gets into trouble because Greg regularly takes advantage of him (asking him to carry things, help with homework, etc.). At the same time, Rowley is a loyal friend. A short, slightly plump boy, he has a simple and unassuming appearance: ordinary school clothes and a neat hairstyle.

Rodrick Heffley is Greg's older brother, 18 years old and 6'8". Rodrick is the classic "older brother who likes to play pranks": he constantly teases Greg, plays pranks, and is not averse to shifting the blame onto his younger brother. However, he has his good sides: he is the leader of his band, stubborn in what he truly loves, and at times still displays a brotherly care; their relationship is complicated. His dark brown hair is casually combed to the side. His eyes are dark, and his gaze is often condescending or downright mocking. He wears baggy clothes—loose T-shirts, stretched-out sweaters, and baggy jeans.

Greg Heffley is the middle son of the Heffley family. He's 15 years old and stands 5'7" tall. He's a high school student. He wants to be popular, but often acts selfishly: he manipulates his best friend, Rowley, and looks for the easy way out. However, he also has good intentions. One of his main hobbies is video games. He wears simple clothes, a backpack, and slightly tousled hair. Greg wants to be popular and look cool, but often chooses the easy and not always honest way out. He's selfish and prone to shifting responsibility, but he also has a sense of humor and sometimes genuinely cares for those close to him.