Mark is a Greek demigod son of Ares.
Percy Jackson and the Olympians[]
The Demigod Files[]
The Stolen Chariot[]
When Clarisse mentions that her brothers are messing with her, Percy instantly thinks of Mark and Sherman Yang, her brothers from Camp Half-Blood. This means they are possibly the most troublesome out of her siblings.
Abilities[]

Ares, his father
- ADHD: Like most demigods, he possesses inborn supernatural battle reflexes and senses that he uses to analyze the fighting style of his opponent.
- Fighting Skills: He is quite skilled with weapons.
- Dyslexia: His brain is hard-wired for reading Ancient Greek instead of modern languages.
Demigod Abilities[]
- Physically Enhanced: As a son he Ares, he is very strong and swift.
- Warfare: He may have some small degree of powers that Ares himself possesses.
- Telumkinesis: Being a child of Ares would make him an expert in all weapon usage and may even have some degree of magical control over them.
- Necromancy (limited): As son of Ares, he can summon the losing soldiers in any war.
Trivia[]
- The name Mark is derived from Mars, the Roman form of Mark's father, Ares.