Wounded by a poisoned blade while protecting Percy. Her injury motivates Percy to fight even harder...

Grieves for Luke after his son's heroic sacrifice to destroy Kronos.

Finally destroyed when Luke finds the strength to stab his own mortal point, the heel, destroying...

Helps destroy Kronos, finally free from the Titan's influence. His final moments show redemption...

Brings an army of undead warriors from the Underworld to help defend Olympus. His powers have grown...

Realizes the prophecy refers to Luke, not himself. Helps Luke find the strength to destroy Kronos...

Spirits of past Oracles who guide Rachel in delivering the final prophecy about the new age.

Delivers the prophecy about the new generation of heroes and the promise of peace, signaling the...

The curse that protects Percy throughout the final battle but also makes him vulnerable at his...

Provides final wisdom about heroism and the true meaning of the prophecy during the climactic...

Uses destructive magic and summons monsters to support Kronos's assault on Manhattan.

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

Goddess of love and beauty who joins the final battle, using her charmspeak and divine powers.

God of the sun, music, and healing who joins the final battle with his golden arrows and divine...

Camp's security chief who coordinates defensive positions and watches for enemy infiltration.

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

Ancient Hunter of Artemis, legendary for her speed and archery skills in battle.

Goddess of wisdom who joins the final battle against Kronos and the Titans.

Son of Apollo who uses sonic attacks through his saxophone to disorient enemy forces.

Armed guards and security personnel at Manhattan banks and financial institutions who fall asleep...

Appears to Nico during the battle to give him strength and remind him of his purpose.

Percy's loyal pegasus who provides aerial support and transportation during the Manhattan battle.

Personnel who operate drawbridges and monitor bridge traffic, now asleep at their posts.

Actors, musicians, and theater staff performing in evening shows who fall asleep on stage and in...

Mechanical warriors created by Hephaestus cabin to defend key positions in Manhattan.

Major Manhattan bridge that becomes a battleground during the Titan invasion.

Local spirits of Brooklyn who defend the bridges connecting to Manhattan.

Son of Iris who helps maintain communications during the battle using rainbow messaging.

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

Television camera operators and production staff who fall asleep with their equipment.

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

All available campers from Camp Half-Blood mobilized to defend Manhattan and Olympus.

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

The spirit of Pollux's dead twin brother who provides comfort and guidance during the battle.

Wild centaurs led by Chiron who arrive to help defend Manhattan and Olympus.

Large Manhattan park that becomes a staging area and battle site, with nature spirits joining the...

Tree spirits throughout Central Park who animate trees and plants to fight against invading...

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

Leads the Camp Half-Blood forces in battle, using his archery skills and tactical knowledge to...

Wild centaurs who answer Chiron's call to help defend Manhattan, skilled in archery and warfare.

Wounded in battle, which motivates Clarisse to return with the Ares cabin to join the final fight.

Art Deco skyscraper that serves as a vantage point and battle site during the Manhattan conflict.

Returns to join the final battle when her boyfriend Chris is wounded. Leads a crucial charge that...

Son of Hypnos who helps coordinate with Morpheus's sleep magic to protect civilians.

U.S. Coast Guard personnel patrolling New York waters who fall asleep on their vessels.

Works with Travis in scouting enemy positions and executing quick strike missions.

Construction crew members working night shifts on Manhattan building projects who fall asleep at...

Army of cyclopes led by Tyson who arrive to help in the final battle with their strength and...

Cyclops craftsmen who forge weapons and repair equipment during the battle.

Son of Ares who specializes in heavy weapons and siege warfare tactics.

Pizza delivery, package couriers, and other delivery service drivers who fall asleep in their...

Goddess of the harvest who uses her power over plants and nature in the final battle.

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

God of wine who joins the final battle, fighting with vines and his divine madness powers.

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

Large force of snake-tailed women warriors serving in Kronos's invasion army of Manhattan.

Elite dracaenae who lead the snake-woman warriors in Kronos's army.

Smaller but intelligent drakons that lead monster battalions in coordinated attacks.

Specialized team of demigods trained to take down the largest monsters in Kronos's army.

Daughter of Aphrodite skilled in charmspeak, using her abilities to confuse and misdirect enemies.

Water spirit of the East River who provides aquatic support and healing.

Son of Ares skilled in battlefield tactics and leading frontal assaults.

Firefighters, paramedics, and other emergency workers in Manhattan who fall asleep due to...

The skyscraper that serves as the entrance to Mount Olympus via its secret 600th floor.

Magical spirits that operate the Empire State Building's special elevator to Olympus.

High-ranking empousai who coordinate the vampire forces in battle formations.

Hundreds of vampire-like monsters with bronze legs serving in Kronos's invasion force.

Emergency medical technicians and paramedics who fall asleep in their ambulances.

Dies heroically while trying to stop Kronos, finally realizing that the Titan lord cares nothing...

Fire Department of New York firefighters who fall asleep in their stations and trucks.

News reporters on the streets of Manhattan who fall asleep while covering the evacuation.

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

Massive scorpions with deadly poison stingers serving in Kronos's monster army.

The magical essence of the Golden Fleece that provides healing support during the battle.

Uses his enhanced powers and connection to nature to help heal the wounded and coordinate with the...

Finally joins the battle against Kronos after being convinced by his son Nico. Brings the power of...

Goddess of youth who joins the final battle, using her powers to rejuvenate tired warriors.

The largest and most dangerous hellhound leading the demonic dog packs for Kronos.

Packs of large demon dogs from the Underworld serving in Kronos's army.

God of fire and metalworking who provides weapons and joins the final battle with his mechanical...

Sea-horse mounted cavalry that emerges from the rivers to support the battle.

Manhattan's homeless individuals who fall into an even deeper magical sleep in doorways, parks, and...

Doctors, nurses, and hospital workers throughout Manhattan who fall asleep due to the divine sleep...

Front desk clerks, bellhops, and hotel service staff who fall asleep at their posts in Manhattan...

Ancient spirit of the Hudson River who aids Percy with water-based powers during the battle.

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

Battles the demigods with incredible power, nearly overwhelming them with his light-based attacks.

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

Goddess of the rainbow who continues providing communication services during the battle.

Leads the Hephaestus cabin in creating and maintaining weapons for the battle.

Son of Nemesis fighting for Kronos, seeking revenge against the gods for neglecting minor deity...

Maintenance and cleaning staff throughout Manhattan buildings who fall asleep during their night...

Uses her plant magic to help defend Manhattan, growing barriers and entangling enemy forces.

Daughter of Apollo specializing in both archery and musical combat magic.

Titan associated with constellations and the south, one of Kronos's brothers leading the assault.

Large numbers of fire-breathing cannibal giants in Kronos's assault force on Manhattan.

Son of Apollo and skilled archer who leads arrow volleys against enemy forces.

Works on tactical analysis and battle coordination during the Manhattan defense.

Spirits inhabiting Manhattan's skyscrapers who assist in the final battle by animating building...

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...

Stone gargoyles on Manhattan buildings animated to defend their structures.

Military personnel stationed around Manhattan who are also affected by the sleep spell.

New York Police Department officers who fall asleep due to Morpheus's spell during the battle.

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.

Head counselor of Apollo cabin after Lee Fletcher, coordinates archery support and healing.

Massive mechanical siege weapons operated by monsters to breach Manhattan's defenses.

His sleep spell affects most humans but some mortals like Rachel can resist it due to their clear...

Elite divine warriors who protect the entrances and halls of Mount Olympus.

Dryads, satyrs, and other nature spirits led by Grover who join the final battle.

Goddess of revenge and balance, mother to Ethan Nakamura who fights for the Titans.

Various overnight employees including gas station attendants, convenience store clerks, and factory...

Goddess of victory who inspires the defending forces with courage and determination.

Daughter of Hephaestus specializing in explosives and heavy artillery for the battle.

Finally defeated by Poseidon, allowing the sea god to join the final battle on land.

Corporate employees working late shifts in Manhattan office buildings who fall asleep at their...

Divine warriors who guard the throne room of Olympus during the final battle.

The container that once held all the world's evils, offered by Prometheus as a weapon against the...

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

Leader of the party ponies who coordinates the centaur army's assault tactics.

Musical centaurs who use battle hymns and war songs to boost morale during combat.

Winged horses that provide aerial reconnaissance and quick transport during the battle.

Leads hunting parties in coordinated strikes against Kronos's monster forces.

Uses his wine-based powers and fighting skills to help defend Manhattan in his brother's honor.

Finally defeats Oceanus and arrives to help in the final battle against Kronos. His arrival turns...

Offers Percy Pandora's jar and tries to convince him that the gods will inevitably abandon their...

Nature spirits from Queens and outer boroughs who join the final battle.

Chefs, waiters, and kitchen staff in Manhattan restaurants who fall asleep during evening service.

The Empire State Building security guard who remains awake to grant access to the 600th floor...

Returns with Clarisse to join the final battle, bringing the full might of the Ares cabin.

Dies heroically while impersonating Clarisse to rally the Ares cabin. Her sacrifice redeems her...

The famous statue temporarily animated by divine power during the climactic battle.

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

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

Metropolitan Transportation Authority employees who fall asleep in subway tunnels and stations...

Leads the Hunters of Artemis in coordinated attacks against Kronos's forces. Her tactical...

Divine servants who maintain the throne room and assist the gods during council meetings.

Demigods who joined Kronos's cause, believing the Titans offer a better future than the neglectful...

Fights in the Manhattan battle using his thievery skills and quick thinking for reconnaissance.

Maintenance workers in Manhattan's tunnels and underground systems who fall asleep at work.

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

Arrives with reinforcements from the sea to help defend Manhattan. Brings weapons he's forged...

Uses his healing powers and medical knowledge to save lives during the intense fighting. His skills...

Another major bridge connecting Manhattan that becomes part of the battle theater.

Finally returns to Olympus after fighting his own battles. Joins the final confrontation against...

The spirit of the former Hunter lieutenant, now a constellation, who provides guidance during the...