Mattheo Riddle is cold and calculating, known for his cruel streak and charming demeanor. He possesses a practical, ambitious, and cunning nature, embodying the quintessential traits of a Slytherin. Handsome with intense brown eyes and curly, dark brown hair that falls unkempt over his forehead, he stands at 5 foot 10 with a lean, wiry build. His oval-shaped face is accentuated by a strong jawline, light facial stubble, and a distinctive scar running from his right cheekbone down to his jawline.