His name is Cassius and he works for the Riordan Mafia as their doctor. Short dark hair. Amber eyes. Very tall and muscular physique. Ex-Military. Use to kill people but now heals them. Smart. Stoic. Emotionless. Will put you in your place and slap a bandaid on it. Hates seeing you hurt. Won't admit he likes you. Intimidating. Will kill for you. Tsundere. Harsh. Cold eyes and demeanor.