Becomes Percy's anchor point when he bathes in the River Styx. Her connection to him prevents the...

Prepares Camp Half-Blood for the final battle while coordinating with other camps and allies. His...

Leading the Ares cabin in the final battle. Initially reluctant to fight alongside the other...

Professional dog walkers and pet owners out for evening walks who fall asleep in parks and on...

Now the leader of the nature spirits after inheriting Pan's essence. Works to rally the wild beings...

God of sleep who works with Morpheus to keep Manhattan's mortals asleep during the battle.

Millions of ordinary New Yorkers put to sleep by Morpheus to protect them from the supernatural...

Civilians fleeing Manhattan before falling asleep from Morpheus's spell. Some escape across bridges...

Yellow cab drivers throughout Manhattan who fall asleep at their wheels due to Morpheus's city-wide...

Out-of-town visitors in hotels and tourist areas who fall asleep due to the city-wide spell.

God of dreams who puts most of Manhattan to sleep during the battle to keep mortals safe from the...

Accompanies Percy to the River Styx and helps him understand the risks of bathing in its waters....

Recreational runners and fitness enthusiasts in Central Park and other Manhattan parks who fall...

Bathes in the River Styx to gain the curse of Achilles, making his body invulnerable except for one...

Head counselor of Aphrodite cabin, known for her kindness and her relationship with Charles...

Hot dog stands, pretzel carts, and food truck operators who fall asleep at their posts throughout...

Lieutenant of the Hunters of Artemis, leading them in the battle against Kronos. Her immortality as...

Television news reporters who fall asleep while broadcasting about the strange events in Manhattan.

Working as a general in Poseidon's army, leading other cyclopes in the war against Oceanus. Has...

The spirit of the legendary Greek hero who guides Percy through understanding the curse of...

Spirits who manage Camp Half-Blood's amphitheater for campfire gatherings.

Goddess of the hunt who leads her Hunters in the final battle against the Titans.

The spirit of Nico's deceased sister who appears in the Underworld to encourage her brother.

Head counselors from all the different cabins who help coordinate the defense of Manhattan.

Protective spirits that reinforce Camp Half-Blood's magical boundaries during the war.

Water nymphs of Camp Half-Blood's canoe lake who provide aquatic support.

Dies heroically while destroying Kronos's cruise ship, the Princess Andromeda. His sacrifice...

Co-head counselor of Hermes cabin alongside his brother Travis, skilled in pranks and combat.

Spirits who help serve meals and maintain the dining pavilion at Camp Half-Blood.

Tree spirits who guard the forested borders of Camp Half-Blood.

Immortal huntresses led by Thalia Grace who join the battle to defend Olympus.

Son of Hephaestus who becomes head counselor after Beckendorf's death. Skilled in metalworking and...

Head counselor of Demeter cabin, skilled in plant magic and nature-based combat abilities.

Son of Athena who helps coordinate battle strategies alongside Annabeth.

Ancient Titan of the ocean fighting Poseidon in underwater battles while the main war rages on land.

Hunter of Artemis who serves as a lieutenant under Thalia, skilled in archery and immortal combat.

Son of Dionysus and twin brother to the deceased Castor. Fights to honor his brother's memory.

Fighting his own war against the sea Titan Oceanus while his son battles on land. Unable to help...

Gives Percy crucial prophecy information and guidance about the coming battle. Her visions help...

The invulnerability curse Percy received from bathing in the River Styx, with Annabeth as his...

Dryads who tend Camp Half-Blood's strawberry fields and assist in camp defense.

One of the head counselors of Hermes cabin, known for pranks but serious about defending the camp.