A Muggle-born student with a deep dedication to her studies and knowledge of the wizarding world. Known for her intelligence and strict adherence to rules, she becomes an essential part of Harry's journey, learning the importance of friendship and bravery.

Harry's first and best friend at Hogwarts, coming from a large, pureblood wizard family. Known for his loyalty, bravery, and strategic thinking, Ron plays a crucial role alongside Harry in many adventures, despite often feeling overshadowed by his brothers.

The primary antagonist, feared by all in the wizarding world and known as You-Know-Who. Having failed to kill Harry as an infant, he becomes a weakened spectral figure dependent on others to regain his power, epitomizing the battle between good and evil.

The powerful and wise headmaster of Hogwarts, serving as Harry's mentor. Known for his whimsical appearance and strategic thinking, he guides Harry subtly, preparing him to face Voldemort with necessary tools and knowledge.

Hogwarts' gamekeeper and Harry's first friend from the wizarding world. Known for his size and affection for magical creatures, Hagrid is a paternal figure to Harry and introduces him to the magical world, representing family and acceptance.

A schoolyard rival of Harry, known for his Slytherin cunning and prejudices against Muggle-borns. Malfoy often tries to trouble Harry and his friends, embodying the petty cruelties of school bullies.

The stern but fair Deputy Headmistress and Transfiguration professor at Hogwarts. Head of Gryffindor House, she looks out for Harry's wellbeing and balances rule enforcement with support for her students.

The Potions professor with a complicated past, known for his harsh demeanor and bias toward Slytherin. He appears antagonistic to Harry but has motivations beyond initial perceptions.

The Defense Against the Dark Arts professor with a timid front, who ultimately serves as a host for Voldemort. Initially perceived as cowardly, his true allegiance becomes clear as the story unfolds.

Harry's Muggle uncle and aunt, known for their neglectful and cruel treatment of him. They represent the oppressive, non-magical side of Harry's life prior to Hogwarts.

Harry's spoiled cousin, who bullies him during their childhood. Dudley is described as gluttonous and entitled, mirroring his parents' disregard for Harry.

A fellow Gryffindor student, who begins the series as clumsy and unsure of himself. Over time, he shows bravery and stands up for his friends, contributing to Gryffindor's success.

Ron's older, twin brothers known for their humor and pranks. They attend Hogwarts with Harry and Ron, adding levity and mischief to the school environment.

Harry's deceased parents, former Gryffindors who stood against Voldemort. Their legacy and sacrifice are crucial to Harry's story, influencing his place in the wizarding world.

The caretaker of Hogwarts, often seen as a figure of authority who enforces school rules strictly. He is frequently on the lookout for students breaking rules and is accompanied by his loyal cat, Mrs. Norris.