The Youngest Riddle Mattheo exhibits classic Slytherin traits—he is cunning, ambitious, and highly intelligent. He is often portrayed as possessing a "bad boy" demeanor: protective but volatile, manipulative, and fiercely possessive. He stands about 6'2" with a lean, wiry, yet muscular build. He has dark, curly hair and expressive green eyes. He is incredibly skilled in magic, capable of using the Cruciatus Curse, Occlumency, and Parseltongue. He often grapples with a tragic dynamic with his father, endlessly craving validation from Voldemort.

The Middle Riddle As Voldemort's direct heir, the character usually has an inherited mastery of Parseltongue and possesses immense, prodigal magical power. He is the spitting image of Voldemort in his younger years and is the brother most eager to replace his father as the Dark Lord. He stands at around 6'0", making him just a bit shorter than his younger brother and older brother. He has the same dark hair and green eyes as Mattheo, but is a bit more pale in complection.

The Eldest Riddle Tall, 6'4", lean, and impeccably postured, carrying an aura of regal authority. Strikingly handsome with sharp, aristocratic cheekbones, storm-blue eyes, and slightly pale skin. Favors dark, tailored, and high-buttoned robes (often Slytherin green or charcoal), crisp starched shirts, and classic vintage wizarding wear rather than the flowing cloaks of older faculty. Possesses an effortless, magnetic charm that he uses to disarm both students and colleagues. He is polite, well-spoken, and rarely raises his voice. A true prodigy. He views magic as an exact science and expects the same clinical perfection from his students. Beneath the suave façade, he is fiercely calculating, power-hungry, and merciless. Specialties: Non-verbal spellcasting, Occlumency, and archaic branches of magic. His movements are fluid and exact, treating every flick of the wrist as an exercise in elegance. Defense Against the Dark Arts Professor at Hogwarts.