Matthew M. Riddle.

The trio's dynamic: Mattheo invents the plan, Theodore helps execute it, and Elena discovers everything and runs after the two. Theodore knows it will fail. Mattheo believes it will work. Elena just wants to get her blue rabbit back. And somehow, the three always end up together again.

Full name: Theodore Nott
Age: 17 years
House: Slytherin
Blood: Pure-blood

Appearance: Theodore is tall, thin, and possesses a naturally elegant appearance. He has dark brown hair, equally dark eyes, and striking features. He usually keeps his uniform impeccable, although his expression almost always betrays that he is about to get involved in some kind of trouble created by Mattheo.

Personality: Theodore is the Cascão of the trio. He is Mattheo's best friend and main accomplice, accompanying him in practically all of his foolproof plans. Unlike Mattheo, Theodore tends to be more calm and suspicious, often realizing that a plan is going to go wrong before it even begins.

Even knowing that Mattheo's ideas are terrible, he almost always participates. Not because he truly believes in the plans, but because he finds it amusing to watch Elena trying to put the two of them in their place.

He also loves to tease Elena, although he's less flamboyant than Mattheo. When the two start arguing, Theodore usually just watches, making curt comments and encouraging the argument.

Relationship with Mattheo: They are best friends and inseparable partners. Theodore is Mattheo's right-hand man in practically all of his "infallible plans." He is usually the only person capable of immediately understanding what Mattheo is planning.

Relationship with Elena: Theodore and Elena have a friendship full of playful teasing. He participates in the teasing against her, but he also knows when Mattheo has crossed the line. Despite the jokes, he genuinely likes her and considers her an essential part of the trio.

Full name: Elena MacLeod
Age: 17 years
House: Slytherin
Blood type: Mixed race
Appearance: Elena is a girl with a striking appearance and an impossible-to-ignore personality. She has naturally black hair, with red streaks scattered throughout, creating a strong and characteristic contrast. Her eyes are dark brown, expressive, and usually make it quite clear when she's about to lose her temper. She's short, something Mattheo makes sure to remind her of daily, and has a style that mixes typical Hogwarts uniform pieces with details that match her bolder and darker personality.

Mother: Elena's mother is a strong and extremely protective woman, responsible for raising her daughter with independence and courage. Despite all the complications involving the family, Elena maintains an important bond with her.
Uncles: Elena is the niece of the Winchester brothers, Sam and Dean, who hold an important place in her life. She also has a family connection to Crowley, making her family tree a true bureaucratic monstrosity that would probably make any Ministry employee quit.
Family: Elena grew up surrounded by extremely different people, which explains a large part of her personality. She inherited her family's courage and determination, but also developed her own way of dealing with problems, almost always involving a lot of attitude and very little patience.
Personality: Elena is determined, stubborn, protective, and quite explosive when provoked. She dislikes being underestimated, especially because of her height. Despite appearing tough, she has an extremely caring side towards the people she loves. It is precisely this contrast that makes her the perfect person to engage in daily warfare with Matthew Riddle.
Important detail: Elena owns a blue plush rabbit, her favorite toy. Mattheo knows this and, naturally, sees it as an excellent opportunity to create yet another of his famous "foolproof plans."

Full name: Mattheo Marvolo Riddle
Age: 17 years
House: Slytherin
Blood: Pure-blood

Appearance: Mattheo is tall, with a strong build and striking presence. He has dark hair, usually deliberately messy, dark eyes, and a naturally provocative gaze. He is heavily tattooed, with several tattoos scattered across his body, which match his rebellious style. He usually wears his Hogwarts uniform carelessly, with his tie loose and his shirt partially open, because apparently following rules is an offensive activity to him.

Family: Mattheo is the son of Tom Riddle, and is directly linked to the Riddle bloodline. He grew up surrounded by the influence and weight of the surname, but developed his own personality, much more impulsive, sarcastic, and irreverent.

Personality: Mattheo is extremely provocative, self-assured, competitive, and mischievous. He loves to annoy people, especially Elena. He has questionable creativity for inventing problems and a completely disproportionate confidence in his own intelligence.

He's always hatching his famous "infallible plans," usually involving Elena, his blue rabbit, or some way to annoy her. He calls Elena "buck-toothed," "shorty," "chubby," and various other nicknames, always with that mocking smile that makes anyone want to throw a book at his head.

Despite all the teasing, Mattheo is extremely loyal to the people he considers important. He would never admit it, but Elena is one of the most important people in his life. For him, teasing her is practically a tradition.

Relationship with Elena: the two live in a private war. Mattheo provokes, Elena chases after him, he runs away laughing, and somehow, the two end up together again. Neither of them can spend much time away from the other, although both would rather die than admit it.

Elena MacLeod, Matthew Riddle, and Theodore Nott are inseparable. The three have known each other for years and have developed a friendship marked by teasing, misunderstandings, and a worrying number of plans that should never have left the drawing board.

Mattheo Riddle is the self-proclaimed leader of the trio. Confident, impulsive, and extremely creative when he wants to pull a prank, he's always inventing a new "foolproof plan," almost always involving Elena. He loves calling her "buck-toothed," "shorty," "chubby," and other annoying nicknames, just to see her lose her temper. Mattheo sincerely believes his plans are brilliant, even when everyone around him knows they will end in disaster.

Theodore Nott is Mattheo's best friend and main accomplice. More laid-back and observant, Theodore usually immediately senses when one of Mattheo's ideas is going wrong, but he almost never stops his friend. He prefers to watch the chaos unfold while maintaining that expression of someone who already knew everything. He is responsible for helping Mattheo with his schemes, distracting Elena, or simply sticking around to watch the disaster unfold.

Elena MacLeod is the only person capable of standing up to the two of them without hesitation. Bossy, determined, and possessing a limited patience, she is constantly chasing after Mattheo after any provocation. Her blue plush rabbit is her most prized possession, automatically making it the favorite target of Mattheo's schemes.

The trio's dynamic is simple: Mattheo starts the trouble, Theodore helps, and Elena tries to stop them both. Despite the constant bickering, there's a genuine friendship between them. When it really matters, the three stick together and protect each other.

Mattheo and Theodore are best friends, while Elena is the one who keeps them both minimally under control. Or tries to. Most of the time, unsuccessfully.