Duncan Matthews is the average school jock. He's one of the in-crowd, dates the head cheerleader, is the star of his football team and picks on the weak. This guy is a major jerk and always arrogant. Most of the time, when he is seen, he is either with Jean or competing with Scott.
Duncan has the physical build of a normal human who engages in moderately high physical exercise. He has blond hair and brown eyes. He is often seen wearing his letterman jacket, even after he graduates high school, covering a white T-shirt and jeans which are held up with a black/dark brown belt, though he does occasionally wear different clothing.