Invincible

Mark has black hair with a widow's peak that is combed back with a few strands sticking up and brown eyes. While originally slim, since obtaining his powers, Mark's physique has become leaner and gradually more defined. Stemming from the fallout with his father, he has visible stress-faded eye bags. Then, upon working thoroughly with the G.D.A, he gains a slight but noticeable more mass to his build from the intense workouts and training exercises.