Percy Jackson's father
Posiedon
Annabeth Chase's mother
Athena
Jason Grace's father
Jupiter
Piper McLean's mother
Aphrodite
Leo Valdez's father
Hephaestus
Percy Jackson's girlfriend
Annabeth Chase
Annabeth Chase's father
Fredrick Chase
Jason Grace's mother
Beryl Grace
Piper McLean's father
Tristan McLean
Leo Valdez's mother
Esperanza Valdez
Percy Jackson's halfbrother and halfsister
Tyson (Cyclops) Estelle (human)
Annabeth Chase's weapons
Yankees cap of invisibility and dagger
Jason Grace's sister
Thalia Grace
Piper McLean's weapon
Katoptris (meaning "looking glass" or "mirror" in Ancient Greek)
Leo Valdez's girlfriend
Calypso (once immortal goddess)
Percy Jackson's mother
Sally Jackson
Annabeth Chase's worst fear
SPIDERS!!!!!!!!!!!!!!
Jason Grace's girlfriend
Piper McLean
Piper McLean's enemy
Khione (ice goddess)
Leo Valdez's powers
Fire and he is really good with tools
Percy Jackson's best friend
Grover Underwood
Annabeth Chase's cousin
Magnus Chase (son of Norse God, Frey)
Jason Grace's Venti
Tempest
Piper McLean's best friend
Annabeth Chase
Leo Valdez's dragon
Festus