Jason Grace is the brother of Thalia and son of Zeus/ Jupiter. Thalia Grace is the sister of Jason, daughter of Zeus/ Jupiter, and Hunter of Artemis. Piper McLean is the daughter of Aphrodite/Venus. Tristan McLean is the father of Piper, a famous actor and member of Cherokee tribe. Leo Valdez is the son of Hephaestus/ Vulcan. Dylan is a student from Camp Wilderness who is a venti (Roman version) or an anemoi thuellai (Greek version) which are storm spirits. Annabeth Chase is the daughter of Athena/ Minerva and the girlfriend of Percy Jackson. Percy Jackson is the son of Poseidon/ Neptune and boyfriend of Annabeth Chase.
Coach Gleeson Hedge is a coach for the Wilderness school, which is a special school, a satyr in Greek terms and a faun in Roman terms, which is a human but with goat features, and a protector from Camp Half-Blood. Chiron is a centaur, which is a half-man half-horse creature, son of Titan Croons and current director of Camp Half-Blood, which is a camp for Greek demigods. Rachel is a friend of Annabeth and an oracle. Festus is the bronze metal dragon made by cabin 9, which is from Camp Half-Blood which is for the children of Hephaestus, and repaired by Leo.
Hera is the wife of Zeus, goddess of marriage and queen of the gods. Roman form: Juno. Aeolus is the Greek god of the winds Roman form: Aeolus. Apollo is the Greek god of sun, prophecy, music, and healing; son of Zeus and twin of Artemis Roman form: Apollo. Ares is the Greek god of war; son of Zeus and Hera, and half- brother of Athena Roman form: Mars. Artemis is the Greek goddess of hunt and moon; the daughter of Zeus and twin of Apollo Roman form: Diana. Boreas is the Greek god of the North wind, one of the four directional anemoi (wind gods); the god of winter; father of Khione. Roman form: Aquilon.
Demeter is the Greek goddess of agriculture, a daughter of the Titans Rhea and Kronos. Roman form: Ceres. Dionysus is the Greek god of wine; son of Zeus. Roman form: Bacchus. Gaea is the Greek personification of Earth. Roman form: Terra. Hades is ruler of the Underworld and god of the dead. Roman form: Pluto. Hecate is the Greek goddess of magic; the only child of the Titans Perses and Asteria. Roman form: Trivia. Hermes is the Greek god of travelers, communication, and thieves; son of Zeus Roman form: Mercury. Hypnos is the Greek god of sleep; the (fatherless) son of Nyx (night) and brother of Thanatos (Death).
Roman form: Somnus. Iris is the Greek goddess of rainbow, and a messenger of the gods; the daughter of Thaumas and Electra. Roman form: Iris. Janus is the roman god of gates, doors, and doorways, as well as beginning s and endings. Khione is the Greek goddess of snow; daughter of Boreas. Notus is the Greek god of the south wind, one of the four directional anemoi (wind gods). Roman form: Favonius. Ouranos is the Greek personification of the sky. Roman form: Uranus. Pan is the Greek god of the wild; the son of Hermes Roman form: Faunus. Pompona is the roman goddess if plenty.