He is the same age as Alex and they are very close. He is a half-blood born between a wizard and a Muggle. His studies are so-so and his other magic skills are average, but he is very proficient in Flying and Defense Against the Dark Arts. He belongs to Gryffindor and is on the Gryffindor Quidditch team. His personality is mischievous, and though he's often overshadowed by Alex, Ron, and Malfoy, Harry is quite the troublemaker himself. He is handsome and wears glasses. He is somewhat popular with girls. He belongs to the Potter family, one of the four wealthiest wizarding families.

He is the same age as Alex and they are very close. He is a pure-blood born between two wizards. Along with Alex, he is a representative blockhead of Hogwarts. He is always at the bottom of the school rankings. There aren't really any spells he is particularly good at. He belongs to Gryffindor. He is also one of the representative troublemakers of Hogwarts along with Alex and Malfoy. His looks are average, but because he usually hangs out with Alex and Hermione, who have celestial looks, and the handsome Harry, he relatively looks unattractive. He is the friend in charge of the mood and he absolutely hates spiders.

She is the same age as Alex and they are very close. She is a Muggle-born born between two Muggles. Her studies are always at the top of the school. Her passion for learning is so intense that she rarely misses being ranked first. She is good at most magic, but there is one thing she cannot do: Flying. She belongs to Gryffindor. She isn't one to cause trouble, but because she hangs out with the troublemakers Alex and Ron, and the mischievous Harry, she is often misunderstood. Her appearance is beautiful not just within Hogwarts but in the entire Wizarding World. She is considered one of the six most beautiful people in the Wizarding World.

He is the same age as Alex, and their relationship is practically that of enemies. He is a pure-blood born between two wizards. He isn't good at studying, but he is at least better than Alex and Ron. Most of his magic skills are average, but he has talent in Flying and Dark Arts. He belongs to Slytherin. He is notorious within Hogwarts as a troublemaker along with Alex and Ron. He holds pure-blood supremacist views and looks down on half-bloods and Muggle-borns. His face is the typical handsome 'bad boy' type. He is a rare handsome student in Slytherin. He belongs to the Malfoy family, one of the four wealthiest wizarding families. Though he doesn't show it, he secretly wants to become friends with Alex.

He is known as the greatest and strongest wizard in the Wizarding World. He is currently the Headmaster of Hogwarts. He has blue eyes that can see through a person's heart. He always judges wisely and is infinitely benevolent to his students. He is also a representative figure of the Golden Age of Magic 80 years ago, also known as the Legendary Generation. His magic skills are, of course, top-tier.

She is the Head of Gryffindor House at Hogwarts and the Professor of Transfiguration. She is always strict with students, but she is the teacher who loves the students of Hogwarts the most. She is an Animagus and was on the Gryffindor Quidditch team during her school days. She always maintains her composure, except when she is watching a Quidditch match.

He is the Head of Slytherin House at Hogwarts and the Potions Master. He is always cold and intimidating to all students. He is one of the professors students fear the most. During his school days, he was bullied by Alex's father, Jon Beast, and he harbored an unrequited love for Alex's mother, Lily Beast.

He is the Keeper of Keys and Grounds at Hogwarts and the Professor of Care of Magical Creatures. He lives in Hagrid's Hut located at the entrance of the Forbidden Forest. Despite his large frame and scary impression, he is one of the most popular professors because he gets along well with the students. He was expelled during his school days after being framed for something.

He is the one who started the First Wizarding War. He is nicknamed the worst Dark Wizard in history. He is called the Dark Lord, and because people believe they will be cursed if they speak his name, they do not call him by name, instead using titles like the Dark Lord, He, or Him. After hearing a prophecy that Alex would kill him in the future, he tried to kill Alex but failed, and instead, he himself was fatally wounded. Voldemort is a pseudonym; his real name is Tom Marvolo Riddle.

He is Alex's godfather. Legally, he is the only family Alex has left. During his school days, he was a member of a group called the Marauders, created by Alex's father, Jon Beast. Currently, he is imprisoned in Azkaban after being framed as a murderer. He is an Animagus user.