The Last Olympian Characters: Full List & Analysis

Who drives the story

Main characters

Percy Jackson

The fifteen-year-old son of Poseidon and narrator, days from the sixteenth birthday his prophecy hinges on. He bathes in the Styx to become invulnerable like Achilles and Luke, then refuses godhood and demands the gods claim every demigod—before kissing Annabeth underwater on his birthday.

Appears in:: Part 1: A Birthday Drive, a Ship of Explosives; Part 2: The Styx, the Betrayal, the Blessing; Part 3: Sixteen Dead, a Spy Unmasked; Part 4: The Throne Room and the Wish
Themes:: The cost of being forgotten; Hope kept alive; Invulnerability and its one weak spot; Choosing mortality over godhood; Redemption paid in action

Luke Castellan

A 23-year-old son of Hermes who gave his body to Kronos out of hatred for the Olympians. When Kronos strikes Annabeth, Luke wakes, takes Percy's knife, and stabs his own mortal point—dying as, in a way, the actual hero of the Great Prophecy.

Appears in:: Part 1: A Birthday Drive, a Ship of Explosives; Part 2: The Styx, the Betrayal, the Blessing; Part 4: The Throne Room and the Wish
Themes:: The cost of being forgotten; Invulnerability and its one weak spot; Redemption paid in action

Kronos

The deposed Titan king wearing Luke's body, bent on restoring his rule. Destroyed in form by Luke's sacrifice, his essence is spread so thin he can never form a consciousness again—because Titans cannot die any more than gods.

Appears in:: Part 1: A Birthday Drive, a Ship of Explosives; Part 2: The Styx, the Betrayal, the Blessing; Part 3: Sixteen Dead, a Spy Unmasked; Part 4: The Throne Room and the Wish
Themes:: The cost of being forgotten; Redemption paid in action

Annabeth Chase

Daughter of Athena, Percy's love interest, and an aspiring architect. She takes a hit meant for Percy's Achilles spot, survives, and becomes his girlfriend on his sixteenth birthday.

Appears in:: Part 3: Sixteen Dead, a Spy Unmasked; Part 4: The Throne Room and the Wish
Themes:: Invulnerability and its one weak spot

Ethan Nakamura

Son of Nemesis and Kronos's essential ally, resentful that the gods refuse to acknowledge his mother. He attacks Percy's weak spot, then rebels against Kronos—saying 'I'm sorry, Mother'—and is killed for it.

Appears in:: Part 3: Sixteen Dead, a Spy Unmasked; Part 4: The Throne Room and the Wish
Themes:: The cost of being forgotten; Invulnerability and its one weak spot

Thalia Grace

Immortal daughter of Zeus, physically fifteen, leader of the Hunters of Artemis, once believed to be the demigod of the Great Prophecy. She brings her Hunters to defend Manhattan and is rewarded by the gods.

Appears in:: Part 2: The Styx, the Betrayal, the Blessing; Part 4: The Throne Room and the Wish

Nico di Angelo

Son of Hades who betrays Percy for information about his mother, then is forgiven. He convinces his father, Demeter, and Persephone to fight the Titans, and helps bring Hades's army to Olympus.

Appears in:: Part 2: The Styx, the Betrayal, the Blessing; Part 4: The Throne Room and the Wish
Themes:: Redemption paid in action

Charles Beckendorf

Son of Hephaestus and Silena's boyfriend. Sent to blow up the Princess Andromeda, he detonates the explosives himself when the trap springs, dying in the explosion.

Appears in:: Part 1: A Birthday Drive, a Ship of Explosives; Part 3: Sixteen Dead, a Spy Unmasked
Themes:: Redemption paid in action

Clarisse La Rue

Daughter of Ares and Percy's rival, who swears her cabin won't fight over a chariot dispute. Seeing Silena dying, she kills the Lydian drakon single-handedly and breaks her own oath.

Appears in:: Part 1: A Birthday Drive, a Ship of Explosives; Part 3: Sixteen Dead, a Spy Unmasked; Part 4: The Throne Room and the Wish
Themes:: Redemption paid in action

Also in the story

Supporting characters

Grover Underwood

Percy's best friend, a satyr and new member of the Council of Cloven Elders, an ambassador for the power of the god Pan. He fights in the defense of Olympus and is honored by the gods.

Appears in:: Part 4: The Throne Room and the Wish

Silena Beauregard

Daughter of Aphrodite and the camp's secret spy for Kronos. After Beckendorf's death she dons Clarisse's armor to break the Ares boycott, is mortally wounded by the drakon, and dies redeemed.

Appears in:: Part 3: Sixteen Dead, a Spy Unmasked
Themes:: Redemption paid in action

Connor and Travis Stoll

Sons of Hermes, prank-loving brothers everyone mistakes for twins. They steal from camp and feud with Demeter cabin's head counselor, Katie Gardiner.

How they are connected

Key relationships

Percy Jackson Luke Castellan
He bathes in the Styx to become invulnerable like Achilles and Luke, then refuses godhood and demands the gods claim every demigod—before kissing Annabeth underwater on his birthday.
Percy Jackson Annabeth Chase
He bathes in the Styx to become invulnerable like Achilles and Luke, then refuses godhood and demands the gods claim every demigod—before kissing Annabeth underwater on his birthday.
Luke Castellan Kronos
A 23-year-old son of Hermes who gave his body to Kronos out of hatred for the Olympians.
Luke Castellan Annabeth Chase
When Kronos strikes Annabeth, Luke wakes, takes Percy's knife, and stabs his own mortal point—dying as, in a way, the actual hero of the Great Prophecy.
Ethan Nakamura Kronos
Son of Nemesis and Kronos's essential ally, resentful that the gods refuse to acknowledge his mother.
Ethan Nakamura Percy Jackson
He attacks Percy's weak spot, then rebels against Kronos—saying 'I'm sorry, Mother'—and is killed for it.
Grover Underwood Percy Jackson
Percy's best friend, a satyr and new member of the Council of Cloven Elders, an ambassador for the power of the god Pan.
Nico di Angelo Percy Jackson
Son of Hades who betrays Percy for information about his mother, then is forgiven.
Charles Beckendorf Silena Beauregard
Son of Hephaestus and Silena's boyfriend.
Silena Beauregard Kronos
Daughter of Aphrodite and the camp's secret spy for Kronos.
Silena Beauregard Clarisse La Rue
After Beckendorf's death she dons Clarisse's armor to break the Ares boycott, is mortally wounded by the drakon, and dies redeemed.
Clarisse La Rue Percy Jackson
Daughter of Ares and Percy's rival, who swears her cabin won't fight over a chariot dispute.

Go deeper

The Last Olympian themes & symbols

The cost of being forgotten · Hope kept alive · Invulnerability and its one weak spot · Choosing mortality over godhood

Themes explained

Read the full The Last Olympian summary

The full story act by act, the ending explained and a quick quiz.

Open the summary