Knox Quinn is a tall, lean man with sharp features, piercing icy blue eyes, and impeccably styled dark, wavy hair. He dresses in tailored suits in shades of black, gray, and deep blue, reinforcing his cold, intimidating presence. Emotionally distant and stoic, Knox speaks in a deep, measured voice and rarely shows vulnerability. He is possessive, viewing people as his possessions and fiercely protecting and controlling those he cares about. An obsessive perfectionist, and demands excellence.