Harry Potter is brave, loyal, stubborn, and often acts on instinct. He’s usually kind and protective, especially toward people he cares about, but he can also be reckless and quick to challenge unfairness. He’s described as having messy black hair, bright green eyes, a thin build, and round glasses. He also has the lightning-shaped scar on his forehead. His main friends at Hogwarts are Ron Weasley and Hermione Granger. He’s also close with Ginny Weasley, Neville Longbottom, and later members of Dumbledore’s Army.

Hermione Granger is intelligent, hardworking, and very determined. She usually thinks things through carefully, follows the rules when she believes they matter, and often becomes the voice of reason in a group. She can also be blunt, anxious under pressure, and very stubborn when she knows she’s right. She’s usually described as having bushy brown hair, brown eyes, and a serious, expressive face. In the films, she’s shown with thick hair and a neat, practical style. Her main friends at Hogwarts are Harry Potter and Ron Weasley. She’s also close with Ginny Weasley and later other members of Dumbledore’s Army.

Ron Weasley is loyal, funny, and easygoing, with a tendency to be insecure next to his more famous or talented friends. He can be brave when it matters, but he also gets jealous, annoyed, and embarrassed pretty easily. He’s often the most relatable and down-to-earth of the trio. He has red hair, a tall, lanky build, and a freckled face. He usually looks a bit rumpled or plain compared with the more striking people around him. His main friends at Hogwarts are Harry Potter and Hermione Granger. He’s also very close to his brothers and sister, especially Ginny, Fred, George, and later the wider Weasley family

Neville Longbottom is shy, kind, and a bit clumsy at first, but he grows into one of the bravest characters in the series. He starts out nervous and unsure of himself, then becomes much more confident, stubborn, and strong-willed. He has messy brown hair, a round face, and a stocky build. In the early books he often looks a little awkward or plain, but he becomes more self-assured as he grows up. His main friends at Hogwarts include Harry Potter, Ron Weasley, Hermione Granger, his pet toad Trevor, and the other members of Dumbledore’s Army.

Fred Weasley is funny, mischievous, bold, and always ready with a prank. He’s energetic, clever, and often the one pushing boundaries, usually with George right beside him. He has red hair, a freckled face, and the same tall, gangly Weasley build as his brothers. He usually looks very much like George. His main friends at Hogwarts are George Weasley, Harry Potter, Ron Weasley, and Lee Jordan.

George Weasley is witty, mischievous, and playful, with a sharp sense of humor. He’s brave and loyal too, and he usually works as Fred’s perfect partner in crime. He has red hair, a freckled face, and a tall, slim build, much like Fred. The two are almost identical in appearance. His main friends at Hogwarts are Fred Weasley, Harry Potter, Ron Weasley, and Lee Jordan.

Draco Malfoy is proud, arrogant, and often cruel, especially when he wants to show off his status. He’s clever and ambitious, but also insecure, defensive, and strongly shaped by his upbringing. He has pale blond hair, a sharp face, and a slim build. He usually looks polished and self-important. His main Hogwarts allies are Crabbe and Goyle, and he’s also associated with other Slytherin students like Pansy Parkinson and Blaise Zabini.

Professor Sprout teaches Herbology. She’s warm, practical, and caring, with a no-nonsense attitude. She’s patient with students, fair, and quietly brave when needed. She’s usually described as a small, stout witch with a round face, frizzy gray hair, and an earthy, garden-like appearance. Her main Hogwarts connections are her Hufflepuff students and staff colleagues, especially Professor McGonagall and Professor Dumbledore.

Professor McGonagall teaches Transfiguration. She is strict, intelligent, fair, and deeply loyal to Hogwarts. She can seem severe, but she has a dry sense of humor and cares a great deal about her students. She is usually described as tall, with stern features, black hair tied in a tight bun, and a sharp, dignified appearance. She often wears robes and a pointed hat. Her main Hogwarts connections are her students and fellow staff members, especially Harry Potter, Hermione Granger, Albus Dumbledore, and Professor Snape.

Professor Snape teaches Potions, and later Defense Against the Dark Arts. He is strict, cold, and intimidating, with a sharp tongue and very little patience. He can seem cruel, but he is also deeply loyal and more complicated than he first appears. He is usually described as pale, with greasy black hair, a hooked nose, and dark, intense eyes. He often wears long black robes and has a severe, bat-like look. His main Hogwarts connections are Harry Potter, Albus Dumbledore, Professor McGonagall, and his former Slytherin students.