Luke Castellan






Eye Color

Blue (as himself) Gold (as Kronos)

Hair Color

Blond (Streak of gray in The Titan's Curse)




Olympians Titans (formerly)




Camp Half-Blood Princess Andromeda (formerly) Westport, Connecticut (formerly) Elysium (formerly)


Jake Abel

"Ethan. Me. All the unclaimed. Don't let it...Don't let it happen again."–Luke making his final request to Percy

Luke Castellan is a Greek demigod, the son of Hermes and May Castellan. He was one of the main antagonists of the Percy Jackson and the Olympians series. He allowed the Titan Kronos to possess him. Although he is considered as the series' main demigod antagonist, he died at age twenty three as the hero of the Great Prophecy.

History Edit

Early life Edit

Luke Castellan was born to May Castellan, who was a mortal with the ability to see through the mist, and Hermes. He first came to Camp Half-Blood as a baby when May Castellan wanted to become the oracle.

However, instead she got cursed instead...As Luke grew up as a kid his mother began to have prophetic fits which resulted in frightening Luke as a child.M ay Castellan's eyes used to glow green and she used to shake violently as well as warn Luke about his terrible fate during these horrifying fits..

This scarred Luke and sheer hatred for his his father grew.

At age 9 Luke ran away and met Thalia and Annabeth.

As A Runaway Edit

Luke travels as a runaway battling monsters with both of his companion , who he consideedr his family .Once Thalia is badly hurt and the trio needs to take shelter at Luke's old house.

There he meets Hermes who he critizes for being a terrible father.So on, he storms away angrily with tears in his eyes claiming his father never loved him.

After that day ,Luke becomes extremely reckless.

Soon,Grover the satyr is sent to be their guide to Camp Halfblood.

Sadly , Thalia is fataily wounded on the top of Halfblood hill and Zeus converts her into a pine tree.

This only fuels Luke's anger towards the gods.

Allegiance to Kronos Edit

When he was about seventeen, Luke was offered a quest by his father Hermes: to seek a Golden Apple at the Garden of Hesperides from the tree. He was honored by this offer, but eventually began to question it, as it was done before by Hercules, and he didn't want to do a quest someone had already done. He went on this journey, but failed and was scratched (and given the scar on his face) by the dragon guarding the tree, Ladon. He returned to the camp and according to his words, was treated with "pity" by the campers. It was then that he began to hold a grudge against Olympus and his father, Hermes, who he felt didn't love him. He wanted to tear Olympus down, stone by stone at that point. Luke apparently was able to injure Ladon and steal a claw; he has since kept the Ladon's claw in the Big House attic. He bidded his time of revenge and began to dream of Kronos.

He was later contacted in his sleep by Kronos, Lord of the Titans. The nature of this encounter is unknown, but he was convinced to join Kronos' cause out of a desire for revenge. He was assigned to steal the Master Bolt ,Zeus' primary weapon, and the Helm of Darkness, Hades' godly weapon, in order to start a war between the gods.

On a camp field trip to Mount Olympus he made his move. While the other campers and counselors were asleep he entered the throne room and was able to steal the Master Bolt and the Helm of Darkness. The gods believed that no one would ever dare steal their symbols of power, so they left them by their thrones. They later discovered the theft and went to search for the thief. The Furies went to work searching for Hades, while Zeus sent out his best trackers, Artemis, Ares ,and Athena. Ares found Luke and fought with him to get the bolt back. According to Luke, he would have won, but underestimated his opponent and was outmatched. However, he managed to save himself by speaking in Kronos' words that if the Master Bolt was successfully stolen, there would be a full-scale war. Ares was awed by this, as he was the god of war, and spared Luke, but took the Bolt and the Helm with him. It is presumable that Ares was dreaming of Kronos, although unknown from before or after Luke's conversation with him. Luke then managed to make it safely back to Mount Olympus before anyone noticed his absence.

Personality Edit

Luke showed his darker side as a villain for most of the series, so his character was mostly described as "evil", however he was a hero in the end, so his character did malevolent things but was ultimately good at heart. It was shown that even after he had become a traitor, he still hesitated to harm Thalia or Annabeth, his old loyalty holding out even in his desperation for vengeance. In this way, he is more 'heroic' in the old sense of the terms, such as the stories of Theseus, Jason or Hercules. Apparently, Kronos chose Luke to host him because he had a strong spirit.

Appearance Edit

Luke is described as a tall, handsome young man whom all the girls liked, with short-cropped sandy blonde hair, blue eyes, an athletic and muscular build, and a sneaky look like all Hermes demigod children. He is described through the series as being college-aged. The only thing suscpicion grabbing thing on Luke is a t deep pale scar that runs from the bottom of his eye down to his chin. It is said that the scar was caused when Luke stole a golden apple and was then clawed by the guardian dragon (Ladon) of the tree.

Although he is generally very attractive, his appearance has varied over the books. In the first two books The Lightning Thief and The Sea of Monsters he looks as always did in Camp Half-Blood, but come The Titan's Curse, he begins to look sickly and aged. His usually tanned skin becomes ghostly pale, and his hair is also white (supposedly with gray streaks possibly from holding the sky), especially under the moonlight. He also begins to wear traditional Greek clothing, such as a white chiton and himation (used as an over-the-shoulder cape). However, in The Battle of the Labyrinth, Luke's healthy appearance returns as he gets closer to being taken over by Kronos. This is possibly because he bathed in the River Styx. He wore a white chiton and himation, which made him look timeless. Percy thought he looked too healthy, because his skin had an unnatural glow to it.

Abilities Edit

  • ADHD: Like all demigods, Luke possesses inborn supernatural battle reflexes and senses that he uses to analyze the fighting style of his opponent.
  • Fighting Skills: Even before coming to Camp Half-Blood, Luke was able to survive out in the open for years, even when he lost his sword was forced to use a golf club as a weapon instead. According to Annabeth, Luke was "an amazing monster-fighter, even without training." During the five years he spent at Camp Half-Blood, Luke greatly enhanced his fighting abilities, and was trained in both swordsmanship and hand-to-hand combat. By the time he left Camp, Luke became the best swordsman in Camp Half-Blood in the last 300 years. 
  • Swordsmanship: Luke is an expert swordsman, possibly the best demigod swordsman at Camp Half-Blood during the time he spent there, surpassing even the Ares and Athena demigods. In The Lightning Thief, a Hermes camper stated that Luke was "the best swordsman in the last three hundred years." In addition, near the end on the first book, when Luke was revealed to be the traitor and the Lightning Thief, he claimed he could have beaten Ares if he, Luke was more cautious. In The Sea of Monsters, Luke easily defeated Percy, even when the latter's power was temporarily augmented by water. At the time, however, Percy wasn't fully trained. In The Titan's Curse, Luke was able to hold his ground against Thalia before being ultimately defeated.
  • Dyslexia: His brain is "hardwired" for Ancient Greek instead of modern languages.
  • Will Power: Luke has a strong will, this was shown when he was able to fight Kronos himself for control of his body.

Demigod Abilities Edit

  • Lock Manipulation: Luke can magically sense the internal structure and mechanisms of any lock he touches, and is able to make it unlock. If concentrates enough, Luke can unlock it telekinetically. One of the few exceptions is the lock on Halcyon Green's front door, which was enchanted by Apollo to trap demigods inside. Luke doesn't really like using and advertising this ability, though. 
  • Lock Intuition: Luke can also identify curses and traps placed on locks. If he concentrates hard enough, he can deactivate them.  
  • Enhanced theft abilities: Luke is able to steal things without people noticing, even Olympian gods, such as when he stole both the Master Bolt and Helm of Darkness.
  • Money manipulation: Since Hermes is the god of merchants, Luke mentions in The Diary of Luke Castellan that he is quite good with money.
  • Internet manipulation: Even though Luke hasn't use computers much, Hermes is the god of communications, and even claims to have invented the Internet. Therefore, Luke can instinctively use the Internet.  
  • Teleportation: In the The Lightning Thief, Luke vanished in a "ripple of darkness" after swingling his sword through the air. However, whether this was due to his demigod ability as a son of Hermes, or was simply a power of his sword Backbiter, is unknown.  
  • Ancient Greek Alchemy: In The Diary of Luke Castellan, Luke learned to create and find the recipe for magic potions, such as Greek Fire.

Kronos Abilities Edit

These are abilities given to Luke once he was under the service of Kronos as his host:

  • Curse of Achilles: After bathing in the River Styx, he was invincible and invulnerable in battle, except for his left armpit. The Curse also greatly enhanced Luke's strength, speed and stamina. 
  • Chronokinesis: Once possessed by Kronos he could control and manipulate time.

Weapons Edit

Luke carries the half Celestial bronze and half tempered steel sword called Backbiter. Unlike Percy's sword Riptide which can't hurt mortals, (as they aren't "important enough to kill") Backbiter can hurt mortals. However, it is not believed that he ever did hurt any mortals with it. It's made from Celestial bronze and mortal steel. The two metals that the sword is made from are opposites, having magic fused with mortal metal. Percy could sense that the two metals were trying to escape each other during the forging, and that someone (most likely the forger) died in the creation of the sword. In The Battle of the Labyrinth, Backbiter is reforged into its original form - the Scythe of Kronos. Backbiter is named so as it will "bite back" at the gods who imprisoned Kronos in Tartarus. Kronos has the ability to turn his scythe back into Backbiter, as he does in the final battle at Mount Olympus. Backbiter, in The Ultimate Guide, is said to have been used to kill Ouranos. He also used to carry a bronze knife given to him by Halcyon Green, which he himself later gave to Annabeth when they met.

Relationships Edit

Romance: Edit

Annabeth Chase Edit

Before Luke died, he asked Annabeth if she loved him, but Annabeth said that for her, he was like a brother. Luke then nodded as if he expected it. Though since The Lightning Thief, Annabeth showed great concern, loyalty, and admiration to Luke.

There were many hints throughout the series that Annabeth had a crush on Luke. When Luke hugged her, Percy said that she looked like she was going to pass out. Also, in The Battle of the Labyrinth, Luke was the "love" Annabeth had lost to a fate worse than death. Percy is shown to be extremely jealous of Annabeth's unrequited crush, though he tries to play this off as his own hatred for Luke. Percy stated that Luke was one of the reasons (along with Calypso and Rachel) that made his relationship with Annabeth complicated at the end of the fourth book. The most obvious clue was when Jason wondered if Annabeth had a crush on Luke from the way she talked about him and looked at his photo.

Luke once tricked her into taking the sky for him, which Annabeth willingly did.

Annabeth's crush was most likely one-sided, as she is seven years younger than Luke, and Luke was more attracted to Thalia. Luke, however, obviously cared a lot for her, and likely thought of her as a younger sibling.

In The House of Hades, it is reveled that ever since Luke's death, Annabeth had had to wrestle with the terrible thought that there could have been another way to defeat Kronos and prevent Luke's death, and that Luke's blood was on her hands. When the River Acheron shows her images of her friends dying, the most painful of all is that of Luke sacrificing himself, and his blood on her dagger. Annabeth begins to fear that Luke's voice is among those in the Acheron, punished for his crimes against Olympus. The river tries to force her to jump in and "share his punishment", and Annabeth nearly does, though Percy intervenes just in time.

Thalia Grace: Edit

It is hinted that Luke and Thalia may have been involved in a romantic relationship before Thalia had sacrificed herself at Half-Blood Hill (shown when Thalia kissed him on the cheek in The Demigod Diaries), but that dissolved when Luke poisoned Thalia's tree in The Sea of Monsters. Thalia seems to dislike Zoë Nightshade in The Titan's Curse because she had appeared to Thalia when she was with Luke and she told Thalia he would let her down like all men. She is seen crying as she fights him in The Titan's Curse. When Luke lunged for her spear after being disarmed, she instinctively kicks him, sending him off a cliff. After Thalia saw how far Luke had fallen and that Zoë was right, she turned her back on men and joined theHunters. She initially believed Luke to be dead after she kicked him off the cliff, and was crying after realizing what she had done. Despite Zoë Nightshade and Halcyon Green both telling her that Luke would betray her someday, Thalia remained stubbornly loyal to Luke until he betrayed her in the end.

Family: Edit

May Castellan Edit

Soon after Luke's birth, May tried to take in the spirit of the Oracle, but failed as Hades had cursed the Oracle during WWII so that her spirit would never move on. May suffered several side effects for many years, such as seeing glimpses of the future. She even saw Luke's fate and would go into spats of screaming that scared Luke growing up until he ran away from home. He eventually went back with Thalia and Annabeth to get supplies, which was when he met his dad, Hermes. He and Hermes got into an argument when Luke demanded to know why Hermes had abandoned him. He ran away again and eventually made it to Camp Half-Blood. His mother still waited everyday for him to return and made him sandwiches and cookies.

Hermes Edit

Luke felt that Hermes abandoned him and his mom and because of that, hates all the gods. He grows to dislike Hermes more when he gives him a quest that had already been completed by another hero, Hercules. However, he failed in his quest to steal a golden apple and was left with a scar to remind him of his failure.

Hermes, on the other hand, loved his son very much and sent Percy to try and bring him back in The Sea of Monsters, but was disappointed when he wasn't able to. He also becomes angry at Annabeth, because she chose not to join him in The Battle of the Labyrinth, before Luke became Kronos' vessel, though Hermes is shown telling Percy that it wasn't her fault in The Last Olympian.

Trivia Edit

  • In The Lightning Thief, Percy mentions that Luke's scar is under his right eye. However in Luke's official portrait, it is located under his left eye.
  • In The Sea of Monsters, Luke claims that he poisoned Thalia's pine with elder python venom, "straight from the depths of Tartarus." However, how Luke obtained this venom without going down into Tartarus itself is unknown. 
  • He is Hermes's favorite son, though this is only discovered in The Last Olympian.
  • According to May, his mother, peanut butter & jelly sandwiches and chocolate chip cookies are Luke's favorite snacks.
  • Luke happened to be fond of Kool Aid when he was younger.
  • His surname "Castellan" means a governor or warden of a castle, it also means "someone who guards the castle". Interestingly, he was the head counsellor of the Hermes Cabin, which would also take in all new campers. He was also the one who saved Olympus from destruction.
  • The Diary of Luke Castellan is in his point of view.
  • In the The Diary of Luke Castellan, it is revealed that Halcyon Green had made a 14-year-old Luke promise that he would learn from his mistakes, something Luke misunderstood to mean not to be pushed around by the gods. Thus, Halcyon was the first one to inspire Luke to question the gods. He was also the one who saw fire and a betrayal in Luke's future.
  • The main reasons why he sided with Kronos were that he couldn't get over the gods doing terrible things to their children; like Hermes' abandoning him, Apollo's cursing Halcyon Green, and Zeus' not saving Thalia.
  • Octavian bears a striking resemblance to Luke, causing Percy Jackson to think he knew him.
  • Luke was the last known person to die in the Second Olympian War.
  • Even though Luke dies in The Last Olympian, he has been mentioned in every book of The Heroes of Olympus up to date.  
  • Luke is also very similar to Michel Desjardins in The Kane Chronicles: they both were initially quite cruel towards the main characters, but make peace with them before they die a hero's death in order to stop the main villain (Kronos and Apophis respectively). Luke, however, was much more malevolent from the beginning, since he sided with Kronos, while Desjardins always fought against Apophis.   
  • Luke and Percy are alike in several ways:
    • They are both excellent sword fighters.
    • At some point they were both in the Hermes Cabin.
    • Both of their mothers can see through the Mist.
    • Both of them have bathed in the River Styx.
    • Both of them saw Annabeth while bathing in the River Styx (For Luke, he also saw Thalia).
    • Both of them are their father's favorite sons.
    • Both of them have met Ladon the guardian dragon.
    • Both of them are subjects of the First Great Prophecy.
    • Both of them held the weight of the sky, and escaped.
    • Annabeth Chase was interested romantically in both of them at one point in time.
    • They were both possessed by a figure from Greek mythology, turning their eyes gold (Kronos,eidolon).
  • In the books, Luke's scar is caused by a dragon, while in the movie, it is caused during the fight against Percy at the end of the movie.
  • Luke's father, Hermes, is known as the god of thieves. Coincidentally, Luke was the one who stole Zeus' Master Bolt and Hades' Helm of Darkness in The Lightning Thief.
  • Luke is similar to Jason Grace in several ways:
    • They are both accomplished swordsmen.
    • They both have a scar on their face (Luke's diagonally across his face, Jason's on his lip)
    • They were both possessed by a figure from Greek mythology, turning their blue eyes yellow (Kronos, eidolon).
    • They are both considered physically attractive and charismatic.
    • They both hurt a girl who had feelings for them (Thalia Grace, Reyna Avila Ramírez-Arellano).
    • They both have blond hair and blue eyes, albeit with a slightly different build.
    • They both have a history with Thalia Grace - Luke was her oldest friend, and Jason is her long-lost brother.
    • They both are repeatedly compared to Percy Jackson.
    • They both wielded a blade given to them by a deity (Backbiter, Juno's gladius).
    • They both destroyed a Titan (Kronos, Krios).
    • Both of their mothers were unstable - May Castellan was turned insane when she tried to become the Oracle of Delphi, and Beryl Grace was unable to handle Zeus/Jupiter leaving her.
    • They both led an attack on a deity's throne room - Luke (while being controlled by Kronos) led an attack on Mount Olympus, and Jason led an attack on Mount Othrys simultaneously.
  • Luke's paternal grandmother, Maia, is thought to be the namesake for the month of May. Ironically, that is Luke's own mother's name.
  • Luke shares many similarities with Khione.
    • They both hate their respective fathers (Hermes, Boreas)
    • They both appeared to be on friendly terms with the main character(s), only to try and kill them later and reveal they were working with the enemy.
    • They were both very close in command to their masters. (Luke was Kronos' second-in-command aside from Kronos' brothers, the Titans, while Khione appears to be second-in-command to Gaea, next to her children, the Giants.)
    • They both disappeared at the end of the first book in their respective series; Luke in The Lightning Thief and Khione in The Lost Hero, leaving their ultimate fates unknown, although Luke's fate was much more obvious. Also, the last words they spoke before disappearing were very similar.
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