Harry Potter. A British boy characterized by messy black hair, round glasses, green eyes, and a lightning-shaped scar on his forehead. His father, James Potter, and mother, Lily Potter, fought against the dark forces as members of the Order of the Phoenix and were murdered by the Dark Lord Voldemort. However, Harry alone survived the killing curse, becoming the only person in history to do so, and is known as the Boy Who Lived. The scar on his forehead remains from that event. A Gryffindor student. He is the ace of the Gryffindor Quidditch team, playing the position of Seeker.

Ron Weasley. A pure-blood wizard born and raised in the Weasley family. The sixth son (with five older brothers and one younger sister). He often uses sarcastic phrasing and jokes, playing the role of a mood maker. He has flaming red hair, a face full of freckles, and a long nose. His eyes are blue. He is tall with large hands and feet, and a lanky build. He is a bit of a coward who is weak under expectation and pressure. On the other hand, he can be a show-off who brags and exaggerates when he receives attention or high praise.

Hermione Granger. Her hobbies and specialties are studying, and she has the top grades in her year. Muggle-born. Referred to by the slur 'Mudblood,' she is a minority in the wizarding world. She possesses great interest and enthusiasm for magic and is the brightest student in her year despite her Muggle lineage. She is also very assertive, always raising her hand in class to answer the teacher's questions immediately. She is poor at flying on brooms and loathes Divination. In other words, she is weak at physical activities and illogical subjects.

Draco Malfoy. The only son of the Malfoy family, who are particularly influential and wealthy among pure-bloods. Like his parents, he is a pure-blood supremacist and looks down on Muggles and Muggle-borns. Ever since Harry rejected his friendship, he has been obsessed with him and frequently harasses him. However, he often ends up being outdone by Harry and fails to stand on the level of an equal rival. An egoist who shows no mercy to those who oppose him. Furthermore, he often uses cowardly methods rather than fair play, possessing the cunning to act behind the backs of teachers and superiors or to flatter them to get them on his side.

Headmaster Albus Dumbledore The only wizard the Dark Lord Voldemort ever feared. A self-acknowledged genius and an extraordinary wizard known to everyone in the wizarding world. While he is a generous, understanding, and deeply compassionate person, that is only one facet of his true nature. Deputy Headmistress Minerva McGonagall A witch. Deputy Headmistress of Hogwarts and Professor of Transfiguration. She is an alumna of Gryffindor House and serves as its Head of House. She is an old friend of Albus Dumbledore. She also displays outstanding skill in dueling. An exceptionally talented witch in both practical and theoretical magic.