Harry Potter -  The protagonist of the story, who is gradually transformed from timid weakling to powerful hero by the end. Marked on the forehead with a lightning-shaped scar, Harry is marked also by the confrontation between good and bad magic that caused that scar: the standoff between the evil Voldemort and his parents who died to save their son. The story eventually becomes a tale of Harry’s vengeance for their wrongful deaths. As he matures, he shows himself to be caring and shrewd, a loyal friend, and an excellent Quidditch player.

Hermione Granger -  Initially an annoying goody-two-shoes who studies too much and obeys the school rules too zealously. Hermione eventually becomes friendly with Harry after she learns to value friendship over perfectionism and obedience. She comes from a purely Muggle family, and her character illustrates the social-adjustment problems often faced by new students at Hogwarts.

Ron Weasley -  A shy, modest boy who comes from an impoverished wizard family. Ron is Harry’s first friend at Hogwarts, and they become close. He lacks Harry’s gusto and charisma, but his loyalty and help are useful to Harry throughout their adventures. Ron’s mediocrity despite his wizard background reminds us that success at Hogwarts is based solely on talent and hard work, not on family connections. Ron’s willingness to be beaten up by the monstrous chess queen shows how selfless and generous he is.

Hagrid -  An oafish giant who works as a groundskeeper at Hogwarts. Rubeus Hagrid is a well-meaning creature with more kindness than brains. He cares deeply for Harry, as evidenced by the tears he sheds upon having to leave the infant Harry with the Dursleys. His fondness for animals is endearing, even if it gets him into trouble (as when he tries raising a dragon at home). Hagrid symbolizes the importance of generosity and human warmth in a world menaced by conniving villains.

Albus Dumbledore  -  The kind, wise head of Hogwarts. Though he is a famous wizard, Dumbledore is as humble and adorable as his name suggests. While other school officials, such as Professor McGonagall, are obsessed with the rules, Dumbledore respects them (as his warnings against entering the Forbidden Forest remind us) but does not exaggerate their importance. He appears to have an almost superhuman level of wisdom, knowledge, and personal understanding, and it seems that he may have set up the whole quest for the Sorcerer’s Stone so that Harry could prove himself.

Voldemort  -  A great wizard gone bad. When he killed Harry’s parents, Voldemort gave Harry a lightning-shaped scar. Voldemort has thus shaped Harry’s life so that Harry’s ultimate destruction of him appears as a kind of vengeance. Voldemort, whose name in French means either “flight of death” or “theft of death,” is associated both with high-flying magic and with deceit throughout the story. He is determined to escape death by finding the Sorcerer’s Stone. Voldemort’s weak point is that he cannot understand love, and thus cannot touch Harry’s body, which still bears the traces of Harry’s mother’s love for her son.

Draco Malfoy -  An arrogant student and Harry’s nemesis. Malfoy, whose name translates roughly to “dragon of bad faith,” is a rich snob from a long line of wizards who feels entitled to the Hogwarts experience. He makes fun of the poorer Ron Weasley and advises Harry to choose his friends more carefully. As the story progresses, Malfoy becomes more and more inimical to Harry and his friends, and there is a hint that he may grow up to become another Voldemort.

Neville Longbottom -  A timid Hogwarts classmate of Harry’s. Neville is friendly and loyal, but like Ron, he lacks Harry’s charisma. Like Hermione, he is initially too obedient, and when the time comes to go after the Sorcerer’s Stone, he fears punishment and threatens to report his friends to the teachers.

Professor McGonagall -  The head of Gryffindor House at Hogwarts and a high-ranking woman in the wizard world. Minerva McGonagall is fair but extremely stern and severe in her punishments. Her devotion to the letter of the law is impressive but a bit cold, and we constantly feel that she could never become a warm and wise figure like Dumbledore. Rowling named her after a notoriously bad nineteenth-century Scottish poet named William McGonagall who was nevertheless highly confident of his own talents.

Professor Snape  -  A professor of Potions at Hogwarts. Severus Snape dislikes Harry and appears to be an evil man for most of the story. His name associates him not only with unfair snap judgments of others but also with his violent intentions to snap the bones of his enemies. Snape’s grudge against Harry, which is nevertheless far from a murderous ill will, helps us remember the difference between forgivable vices and unforgivable evil intentions.

Professor Quirrell -  A stuttering and seemingly harmless man, and a professor of Defense against the Dark Arts at Hogwarts. Quirrell appears as nervous and squirrelly as his name suggests for most of the story. It is he, for example, who nearly faints when announcing the news that a troll is loose in the school. It turns out later, however, that Quirrell has faked his withdrawing meekness and is actually a cold-blooded conniver.

Vernon Dursley -  Harry’s rich uncle, with whom Harry lives for ten miserable years. Dursley symbolizes the Muggle world at its most silly and mediocre. It is through Mr. Dursley’s jaded Muggle eyes that we first glimpse wizards, and his closed-mindedness toward the colorful cloaks and literate cats that he meets emphasizes how different the human and wizard worlds are.

Petunia Dursley -  Mr. Dursley’s wife. Petunia is an overly doting mother to her spoiled son, Dudley, and a prison-keeper to Harry. She is haughty and excessively concerned with what the neighbors think of her family. She is somewhat humanized for us when we discover that she was always jealous of the magical gifts of her sister, Lily, Harry’s witch mother. Perhaps her malevolence toward Harry springs from an earlier resentment of her sister.

Dudley Dursley -  Harry’s cousin, a spoiled, fat bully. Annoying and loud, Dudley manipulates parental love to get what he wants—his outrageous desires for multiple television sets foreshadow the important scenes involving the Mirror of Erised and the wrongful desire for eternal life that motivates Voldemort. Dudley’s tormenting of Harry foreshadows Malfoy’s later bullying tendencies at Hogwarts, though he is less gifted than Malfoy.