| Term | Definition |
| Percy Jackson | Percy Jackson is known as "son of Poseidon" and "seaweed brain". His hometown is New york. His weapon is riptide. |
| Annabeth | Annabeth is known as "daughter of Athena". Her hometown is San Fransisco, California. Her weapon is a magic Yankees cap of invisibility and a celestial bronze knife. |
| Grover | Grover is known as "goat boy" and "Percy's best friend". His hometown is the woods of camp half-blood. His weapon is reed pipes. |
| Ares | Ares is known as "god of war" and "Clarisse's dad". His hometown is Mount Olympus. His weapon is anything. |
| Chiron | Chiron is known as "Mr. Brunner", "immortal trainer of heroes" and "activities director of camp half-blood. His hometown is camp half-blood Long Island, New York. His weapon is bow and arrows. |
| Nico | Nico is known as "son of Hades". His hometown is the underworld. His weapon is Stygian iron sword. |
| Poseidon | Poseidon is known as "god of the sea", "one of the big three" and 'Percy's dad". His hometown is the deep sea. His weapon is a trident. |
| Kampe | Kampe is known as "jailer of the cyclopes and hundred-handed ones". Kampe's hometown is the pits of tartarus. Kampe's weapon is a poisonous bronze seimitars. |
| Luke | Luke is known as "son of Hermes" and "traitor". His hometown is Westport, Connecticut. His weapon is a backbiter. |
| Geryon | Geryon is know as "old three -bodies". His hometown is Triple G Ranch. His weapon is a barbecue fork. |
| Mrs. O'Leary | Mrs. O'Leary is known as "hellhound". Her hometown is the fields of punishment . Her weapon is teeth and claws. |
| Athena | Athena is known as "goddess of wisdom and battle" and "Annabeth's mom". Her hometown is Zeus's head from which she was born in full battle armor. Her weapon is strategy, trickery and whatever happens to be on hand. |
| Rachel | Rachel is known as "redheaded nightmare" and "mortal girl". Her hometown is New York. Her weapon is blue plastic hairbrush. |
| Sphinx | Sphinx is known as "the riddle master" and "the standardized test monster". Sphinx's hometown is Thebes, Greece. Sphinx weapon is Claws, grading machine. |
| Zeus | Zeus is known as "lord of the sky", "ruler of mount Olympus" and "one of the big three". His hometown is Mount Olympus (the 600th floor of the empire state building). His weapon is the master lightning bolt. |
| Tyson | Tyson is known as 'cyclops son of Poseidon" and "Percy's half brother". His hometown is forges of the deep sea. His weapon is brute strength. |