Warning: Some spoilers may be unmarked.
- Main Characters
- Greek Era
- Olympians note Athena, Ares, Poseidon, Hades, Helios, Hermes, Artemis, Apollo, Aphrodite, Hephaestus, Hera, Persephone, Morpheus, Eos, Thanatos, Erinys
- Titans note Gaia, Atlas, Cronos, Prometheus, Typhon, Rhea, Epimetheus, Hyperion, Perses, Oceanus, Thera
- Mythology's Heroes note Hercules, Theseus, Perseus, Castor & Pollux, Peirithous, Jason, Achilles, Odysseus, Orion
- Other Beings note Lahkesis, Atropos, Clotho, Megaera, Alecto, Tisiphone, Orkos, Charon, The Body Burner, Pandora, Aegaeon, the Colossus of Rhodes, Pegasus
- Normal Humans note Callisto, Deimos, Lysandra, Calliope, Aletheia, Alrik, Aphrodite's handmaidens, Boat Captain, Daedalus, Icarus, the Dissenter, King Midas, the Last Spartan, Leda and Persephone, the Oracle of Athens, Village Oracle, Palace Translators, Pathos Verdes III, Persian King, Poseidon's princess, Zora and Lora
- Characters from Comic Books note Giant Arachnid, Herodius, Pothia, Captain Nikos, Danaus, Cereyon, Gyges
- Norse Era
- Aesir/Vanir note Týr, Mímir, Heimdall, Magni and Móði, Ullr, Vili and Vé, Bragi, Iðunn, Sif, Thrúd, Forseti, Freyr, Hildisvíni, Ingrid, Njörd, Nerthus
- Jötnar note Ymir, Surtr, Bergelmir, Thrym, Thamur, Hrimthur, Starkaðr, Hrungnir, Thiazi, Skaði, Fjörgyn, Gróa, Aurvandil, Angrboða, Laufey, Grýla, Sinmara, Loki
- Other Characters note Faye, Andvari, Mótsognir, Fafnir, Ivaldi, Light and Dark Elves, Svartáljǫfurr, Alva, Gullveig, Cannibals, Wayward Spirits, Bitter Squirrel, Ratatoskr, Yggdrasil, Durlin, Ræb, Skjöldr, the Norns (Urð, Verðandi, and Skuld), Berserkers, the Lady of the Forge, Huginn and Muninn, Raiders, Valkyries, Sigrún, Hrist and Mist, Gná, Byggvir and Beyla, Birgir, Lúnda, Helka
- Monsters