Percy Jackson ³

Percy is portrayed as a kind young man who stands up for others. He can be cynical at times, but is generally motivated by doing the right thing. Percy is also quite witty and often cracks jokes to lighten the mood. At the beginning of the series, Percy feels abandoned by the world, and by his father in particular. Because of this, he is very close to his mother, whom he considers the only good thing in his life. When his past as a demigod is revealed, Percy is incredulous at the drastic change his life has undergone. Eventually, he adjusts and comes to accept the life of a hero, despite all the dangers it entails.

As the son of Poseidon, Percy has control over water and can bend it to his will. Thanks to this, he can also fully submerge without needing to surface to breathe. Since Poseidon is the creator of horses, Percy understands their language, allowing him to communicate with all equids, including zebras and pegasi. He also possesses superhuman durability, able to withstand a swipe from the Chimera and a kick from Ares himself. Percy's primary weapon is the sword Anaklusmos, which in Ancient Greek means "against the current." When not in use, it can transform into a pen, using the cap as a sheath. The sword is enchanted so that it always reappears in Percy's pocket when he loses it.

Percy is depicted as a young Caucasian teenager with messy blond hair and blue eyes. His attire consists of a blue t-shirt, a green plaid or plain green jacket, blue jeans, a pair of blue or black Vans sneakers, and a leather cord necklace. Like the other children at Camp Half-Blood, he wears an orange shirt and, occasionally, Greek-inspired armor when necessary.

Percy Jackson was born on August 18th, the son of Poseidon, the Greek god of the seas, storms, earthquakes, and creator of horses, and Sally Jackson, a mortal who could see through the Mist. His mother named him after the famous Greek hero Perseus to bring good luck, as his namesake was one of the few heroes who had a happy ending and died in peace. When Percy was a baby, his father Poseidon left, as is customary among the gods, leaving Sally to raise him. In Percy's case, Poseidon left to protect him and his mother from Zeus, who would have been furious to discover that his brother had broken the oath; a pact made by Zeus, Poseidon, and Hades, also known as the Big Three, to prevent having more demigod children. As the most powerful gods, the children of the Big Three possess incredible power and are considered too dangerous to be born. Percy had vague memories of his father nursing him in his crib; he only remembered a warm smile, a hand on his head, and a "golden glow." Sometime during his childhood, Percy was attacked by a snake, but he managed to strangle it to death, just like the famous Greek demigod Heracles, better known as Hercules. As Percy grew older, his mother told him that his father had been "lost at sea," never confirming whether he was alive or dead.