Characters / Percy Jackson and the Olympians

Characters who appear in Percy Jackson and the Olympians. For tropes specifically applying to returning characters in The Heroes of Olympus, see that character sheet.

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Perseus "Percy" Jackson

Played by: Logan Lerman
Voiced by: Luis Fernando Orozco (Latin-American Spanish), Mamoru Miyano (Japanese)
"Is he dangerous?"
"Very, to his enemies."

The son of Poseidon, god of the sea, and clear-sighted mortal Sally Jackson. The titular hero of the series, the books start in Percy's sixth grade year when he kills one of the Furies, masquerading as his pre-algebra teacher. Has a Cool Sword, Anaklusmos ("Riptide") and later becomes the third person in history to bear the Curse of Achilles.

Played by Logan Lerman in the film series.

  • Achilles' Heel: The small of his back. Or, in a more figurative sense, Annabeth.
  • Animal Talk: Can talk to horses and other vaguely equine beasts and sea creatures, since his dad made them.
  • Apocalypse Maiden: As a candidate for the one in the prophecy to make a decision that will either save or destroy Olympus, he's considered so dangerous that the gods even discuss whether or not to kill him to his face. Subverted when it turns out he isn't the one in the prophecy—Luke is.
  • Author Avatar: Percy is an in-book avatar of Rick's son.
  • Awesome, but Impractical: In the fourth book, he unlocks the power to create his own water: Awesome. He then uses it to create so much water he causes a volcano to erupt: Awesome. Doing this brings him to the point of near death and he has to spend two weeks being magically healed just to be able to stand again: Impractical. Not to mention he woke up Typhon.
  • Badass Adorable: Moreso in his younger years when he was described as cute more than handsome, but he can act incredibly badass one moment before doing something completely Adorkable, especially around Annabeth.
  • Badass in Distress: Occasionally, such as in The Sea of Monsters (he gets turned into a guinea pig). Annabeth is usually the one to bail him out.
  • Badass Longcoat: Temporarily gains one during The Titan's Curse, when the Nemean Lion skin becomes a duster.
  • Battle Couple: He and Annabeth eventually grow into this.
  • Batman Gambit: He basically gets Luke to admit that he poisoned Thalia's tree in front of Mr. D via Iris Message. It does end in an Oh Crap! moment and was a spur of the moment thing. It still counts since it relied on Luke to be a bragging Jerkass.
  • The Beastmaster: With sea beasts in particular, but thanks to his father he's great with horses, and he immediately bonds with a Hellhound upon confirming it is nice.
  • Beware the Nice Ones: Percy is easily one of the nicest characters in the whole series, but get him mad and he'll become easily one of the most vengeful.
  • Big Brother Instinct: Once he gets over the initial shock of their relation, he develops this towards Tyson. By the end of book 2, he's proud to let everyone know that Tyson is his brother, a contrast to his avoidance of the topic during the beginning of the book.
  • The Big Guy: Despite being The Hero, he serves as this during The Titan's Curse, with his prowess at sword-fighting, low-scale invulnerability with the Nemean Lion coat, and Book Dumb compared to the rest of the quest mates.
  • Book Dumb: He prefers to leave the deep thinking to Annabeth. For example, when Franklin D. Roosevelt comes up in conversation, the only vaguely-related thing he can think of to say is "Like FDR Drive?"
  • Bully Hunter: Has a particular hatred for bullies, which he explicitly states in his narration in The Demigod Files. In the normal world he frequently makes friends with the kids that get picked on (Grover and Tyson) and makes it his personal mission to protect them, even if it means he get's bullied as well.
  • Chronic Hero Syndrome: Thanks in particular to his Fatal Flaw.
  • Clueless Chick Magnet: Not even counting the throwaway characters who comment on his attractiveness, his three main love interests - Annabeth, Calypso and Rachel - all have to make the first move on him or else they'd be waiting around forever. Percy's equally confused and surprised everytime.
  • Combo Platter Powers: Being the son of Poseidon, the sea god, Percy has water-based powers as one might expect. What one doesn't expect is the extent and variety of these powers. He can control water, gains a Healing Factor and a power-boost when in contact with water (ocean water gives him the strongest effect), has Super Not-Drowning Skills plus complete immunity to the crushing water pressure on the ocean floor, is able to negate all fall damage if he falls into water that is deep enough, able to know exactly where he is when traveling on an ocean (down to the precise longitude and latitude), and is able to control whether or not he gets wet. Poseidon is also the god of earthquakes, a power which Percy uses to make a volcano erupt. And he can talk to horses.
  • Contagious Heroism: Percy often changes the people he meets for the better. For a few examples:
    • Convinced Annabeth to open up to her family, as well as accept that she can't control everything.
    • Often inspires Grover to be more brave and stubborn in regards to his ideals.
    • Convinces Geryon's herdsman, Eurytion to treat the animals at his ranch better.
    • Overcame Zoe's Does Not Like Men attitude.
    • Made Ethan Nakamura betray Kronos.
    • Consoled Hermes after Luke's death, with Hermes lampshading this trope and asking Percy to look after his other children.
  • Cool Big Bro: Eventually plays this role to Tyson, who looks up to him.
  • Crouching Moron, Hidden Badass: Verges into Badass on Paper territory, but Percy is constantly underestimated both as a fighter and a tactician due to his occasional idiotic antics and questions, despite consistently proving he is an expert in both.
  • Cursed with Awesome: A self-inflicted example, when he signs up for the curse of Achilles.
  • Dangerous Sixteenth Birthday: His sixteenth birthday is the focus of the series, because it involves him either saving or destroying the world.
  • Dark and Troubled Past: Percy's stepfather Gabe was physically and verbally abusive, and he grew up with a learning disability, relatively poor, and without a lot of friends.
  • Deadpan Snarker: Percy gets the award for being the most snarky in a World of Snark. Even the chapter titles tend towards snark territory. It's suggested that his sarcasm is at least partially a coping mechanism for his abusive childhood.
  • Don't Call Me "Sir": He doesn't like it when various subjects of his father call him "lord." Blackjack, Percy's pegasus, still calls him "boss".
  • Embarrassing First Name: His mother named him "Perseus" because it was one of the few ancient Greek myths that had a mostly-happy ending. See Meaningful Name below.
  • Fatal Flaw: Personal loyalty.
  • First-Person Smartass: A first-person narrator prone to snarking at every out-of-the-ordinary thing he sees.
  • Green-Eyed Monster: Of Luke's history with Annabeth.
  • Green Eyes: Described as sea-green.
  • Guile Hero: Though it's overshadowed by Annabeth, who uses this tactic more often, Percy is very capable of using his wits to get out of a situation. One example is when he tricks Crusty (Procrustes) into laying down on one of his own beds, even though he knows that Percy saw him trap two people with them and now knows how to do so.
  • Heroes Prefer Swords: Percy's pretty terrible at anything besides the sword.
  • Hero with Bad Publicity: Downplayed; it isn't so much that he has bad publicity as it is that people tend to call him out on his bad decisions or the the potential trouble he can make as the Apocalypse Maiden more than his accomplishments and heroic qualities.
    • In fact it's so rare for him to get compliments that when his stepfather takes the time to commend Percy for his heroism and bravery, Percy is genuinely speechless.
  • Heroic Self-Deprecation: Percy hates thinking of himself as a hero, constantly injects pessimism and self-deprecation in his narration, and avoids the spotlight.
    Percy's narration: What was so great about me? A dyslexic, hyperactive boy with a D+ report card, kicked out of school for the sixth time in six years.
  • Human Mom, Non-Human Dad: His mother Sally is a mortal, while his dad Poseidon is a god.
  • Humble Hero: Downplays his increasing accomplishments as the series continues. To the point of turning down godhood in the final book.
  • Improbable Age: He's been beating Gods and infamous monsters since he was twelve. Keep in mind that both in-universe and in the original Greco-Roman myths, demigods were (at the very youngest) in their late teens before they did things half as difficult.
  • Incorruptible Pure Pureness: Percy doesn't care about power, money, fame, or any other temptation that Kronos throws his way. At one point he had both Zeus's Master Bolt and Hades' Helm of Darkness in his possession and didn't even think of the immense power this would give him.
    • Throughout the entire series, Percy is never tempted to make the choice to turn against the Olympians, even when they were being Jerkass Gods to him; the closes he ever gets is when he thinks about how releasing Hope from Pandora's Pithos would stop the war and bloodshed Kronos was causing.
  • Indy Ploy: It'd be faster to count the number of times his plans didn't boil down to "I'll figure something out, in the meantime, try not to get killed."
  • In the Back: His (literal) Achilles' Heel is the lower part of his back.
  • Kissing Cousins: Subverted. He'd technically be this with Annabeth, but it's explained that gods don't have DNA, so there's nothing wrong with people from different cabins dating one another.
  • Leeroy Jenkins: Prone to blindly charging into battle, especially in the earlier books.
  • Locked Out of the Loop: Chiron and Annabeth never seem to tell him anything.
  • Making a Splash: Being Poseidon's son gives him water-based powers.
  • Meaningful Name: Twice over.
    • In-universe, his mother named him after one of the only Greek heroes to get a Happy Ending, knowing that he would need the extra luck in his life.
    • Meta-textual, "Percy" taken from the Greek root can be translated to mean "the destroyer/to destroy". Highly appropriate for an antiheroic Apocalypse Maiden with great destructive power.
  • Mellow Fellow: While he can definitely be Hot-Blooded and impulsive, on the whole Percy deals with the insane, otherworldly activities around him with a laid-back, joking attitude that belies the insane amount of pressure and responsibility he has.
  • Momma's Boy: He's very close to his mortal mother.
  • The Navigator: When he's on the ocean, at least. Since Poseidon is god of the sea, and patron of mariners, Percy has perfect navigation abilities while at sea. In a few books, this even extends to being able to recite the exact longitude and latitude of his current location.
  • Nice Guy: Good-hearted and kind, snarkiness aside.
  • No True Scotsman: Children of Poseidon doing less than stellar things often invokes this with him. He has a conversation with Poseidon about this in the fourth book.
  • Not So Different: With Luke-see the For Want of a Nail entry below. It takes him a while to acknowledge everybody who tells him this, given how much he resents Luke.
  • Oblivious to Love: It takes him a long time to clock onto Annabeth's feelings for him, even though they're best friends and mutually crushing on each other for most of the series. Annabeth herself lampshades this in the Demigod Files:
    Annabeth: ''He's so obtuse. That's the word. I mean he doesn't see really obvious stuff, like the way people feel, even when you're giving him hints and being totally blatant...."
  • Olympic Swimmer: Thanks to his divine parentage, Percy's swimming skills are well into superhuman territory.
  • Only Known by Their Nickname: Virtually no one calls him Perseus, except for maybe a few monsters. Not even the big bad does. This is the reason he can tell monsters from normal people. They are the only ones to say "Perseus" when talking to him.
  • Refusing Paradise:
    • Calypso, smitten with him, offers to let him stay on her island forever and live a carefree, idyllic life. He refuses because there's a world to save and a girl to return to, much to her heartbreak.
    • At the end of The Last Olympian he is offered godhood in exchange for his role in ending the Titanomachy. He declines in order to live a mortal life.
  • Showy Invincible Hero: Became this in the fifth book after the Curse of Achilles makes him near-immortal.
  • Sins of Our Fathers: Pretty much every problem in his life can be traced to his father. From getting his troublemaker looks that get him branded as a rebel, to having his destiny tied to a prophecy of Doom, to even having his romantic life screwed up because his love interest's mother disapproves of his father. Aside from his powers, the only real benefit of having Poseidon as his father was that allowed him to find a place at Camp Half-Blood.
  • Skunk Stripe: In the third book, he gains a gray streak in his dark hair from having to hold up the sky. The Heroes of Olympus establishes that it's faded.
  • Soft Water: Along with Super Not-Drowning Skills. Not only can Percy always take a dive into water, from any height, to escape a bad situation (admit it, that's a handy thing to know), being submerged in water (more accurately, touching water in general, but it's strongest when he's submerged) heals and freshens him up, even to the point of detoxing any poison he's suffering from,; he doesn't even get wet unless he wants to. He can even use a lighter underwater. Being the son of the sea god has its perks.
  • Stock Shonen Hero: Brilliant at his universe's Serious Business (Monster-Slaying)? Check. Extremely kindhearted? Check. Energetic? He's got ADHD to prove it. Believes in True Companions? Check. Idiot Hero? Check. Strong sense of justice, mercy, and fairness? Check.
  • Sweet Tooth: His favorite food is "anything blue and sweet", understandable, since his mom used to work at a candy store and brought home lots of free samples.
  • Tired of Running: After spending the entire first book being taunted, intimidated, and forced to run, he finally gets to stand his ground, and against Ares no less.
  • Underwater Kiss: In The Last Olympian with Annabeth.
  • Upbringing Makes the Hero: Heavily implied. Several times he is faced with a hard decision that he only overcomes by thinking of how his mom will react if he takes the bad decision.
  • Undying Loyalty: His Fatal Flaw is said to be his loyalty to his friends.
  • Unskilled, but Strong: At the beginning of the series he was shown to have incredible power but little control or skill.
  • Vitriolic Best Buds: With Annabeth initially.
  • "Well Done, Son!" Guy: He's kind of a sucker for his dad's good opinion.
  • Wicked Stepmother: Unlike Nico and Thalia, this is averted for him. While Poseidon's wife Amphitrite understandably acts coldly towards him (Percy was born after Poseidon swore to never have another demigod child), she isn't really the jealous type, bakes him cookies, and doesn't get mad if he leaves his clothes on the floor. Percy says that's all you can ask of an immortal stepmom. His stepfather, on the other hand....
  • Wild Card: As a child of Poseidon, it is stated in-universe that he is naturally this. Pretty much the only thing his enemies can predict about him is that he will go out of his way to rescue his friends.
  • Will They or Won't They?: With Annabeth. They Do at the end of The Last Olympian. Even their fellow campers thought it was about time already.
  • The Woobie: The sheer amount of crap he goes through will have you want to give him a hug by the end of just the first book. In a five book series.
  • You Are Not Ready: It's shown as far back as the ending of book three when he tries to fight Atlas, but when he fights a newly resurrected Kronos, it becomes clear that Percy is now out of his league whenit comes to enemies. So Nico suggests he Took a Level in Badass by swiming in the Styx.

Annabeth Chase

"Athena always has a plan."

The heroine of the series and the resident brainiac, Annabeth is the literal brainchild of Athena and military historian Frederick Chase (kids of Athena are just special that way). Her pastimes include architecture, Ancient Greek, killing monsters, and practicing how to stab things. Annabeth ran away from home when she was seven and met up with Thalia and Luke; eventually they made their way to Camp Half-Blood, but lost Thalia in the process.

Played by Alexandra Daddario in the film series.

  • Action Girl: Can kick a lot of ass, and is a more experienced warrior than Percy.
  • Adaptation Dye-Job: Described as having blond hair and Gray Eyes in the book, but the movie gives her brown hair and blue eyes.
    • For the sequel, they're reverting to her book hair color.
  • Ascended Fangirl: Wants to be an architect and build monuments that will last for eons. In the final book, she gets her wish when she's chosen to redesign Olympus.
  • Badass Bookworm: Loves learning as Athena's daughter, but is still capable of being a competent Action Girl.
  • Badass in Distress: In The Titan's Curse. Not for very long.
  • Badass Normal: Comparatively. She has zero supernatural powers but holds her own in fights as well as Percy.
  • Battle Couple: With Percy.
  • Betty and Veronica: The Betty to Rachel's Veronica.
  • Broken Bird: Due to the trauma about losing Thalia, and then Luke.
  • Chekhov's Gun: Her knife is used by Luke to kill himself to force Kronos to leave his body.
  • Composite Character: The first film's version of Annabeth is a combination of book Annabeth and Clarisse.
  • Defrosting Ice Queen: Starts out as very aloof at the beginning of the first book, but she slowly warms up to Percy and reconnects with her family.
  • Drop the Hammer: She used one as her first defense against monsters before she met Luke and Thalia.
  • Dumb Blonde: Inverted. Don't let her hear you insult her intelligence, either. She will gut you.
  • Fatal Flaw: Pride. Annabeth's problem is thinking that she can do anything, even when she can't, and, by extension, holding onto impossible goals. She thinks that she can solve every problem that she has, including that of her distant mother and traitorous friend. Because she thinks that she can fix these problems, she never really lets them go and moves on. This is why she takes the sky from Luke in Titan's Curse, despite it having 'bad idea' written all over it, among other things.
  • First Girl Wins: If you exclude Nancy Bobofit, who doesn't show up after the first few chapters, Annabeth is the first named girl Percy meets.
  • Girls Love Stuffed Animals: One of the contents of her trunk, along with various survival gear, her Yankees cap and Daedalus' laptop, is a teddy bear. (Don't tell anyone!)
  • Gray Eyes: Inherited from her mother, Athena.
  • Green-Eyed Monster: She's pretty obviously jealous of Percy's friendship with Rachel.
  • Hot Scientist: Architecture is her dream. In the fifth book (the same one where Percy describes her as beautiful), she gets tasked with rebuilding and redesigning Olympus.
  • Human Mom Non Human Dad: Inverted; her mother is a goddess and her father is a mortal.
  • Insufferable Genius: In the early books, she was an extreme know-it-all. She matures by the fifth.
  • In the Back: Saves Percy from Kelli by stabbing her in the back with her knife.
  • Invisibility Cloak: A gift from her mother, a Yankees baseball cap can turn her invisible.
  • Kissing Cousins: Subverted. Percy and Annabeth are technically second-cousins, the gods have no DNA to speak of and as such, Percy and Annabeth are not biologically related.
  • Knife Nut: Her weapon of choice is a knife; for clever fighters only. The knife was a gift from Luke many years ago.
  • The Lancer: To Percy.
  • Like Brother and Sister: Annabeth had always had a soft spot for Luke since she was a child, but in the end, they come to terms that they only see each other as brother and sister.
  • Love Redeems: Convinced to the end that she can reawaken the good in Luke, and motivated by her history with him. It works, but not with the kind of love she expects.
  • Morality Pet: For Luke, she's the only one who the character seems to retain any humanity towards.
  • Memento MacGuffin: Her knife, which she received from Luke when they first met.
  • Nice Hat: Her Yankees baseball cap, which can make the wearer invisible.
  • Plucky Girl: After her smarts, her unyielding determination is probably her most notable quality.
  • The Pollyanna: To some extent. She's well-aware that the world is not perfect, but it's her dream try to fix that, which is why she wants to be an architect. This is also shown with how she's convinced she can make Luke good again.
  • Precocious Crush: On Luke, when she was younger.
  • Restored My Faith in Humanity: For Luke.
  • The Runaway: Ran away at the age of seven, falling in with Thalia and Luke whom she grew to consider her family.
  • The Smart Girl: Hello, her mom's the goddess of wisdom.
  • Teen Genius: Being a child of Athena, she is inherently smart. Her dream is to become an architect. At the end of the fifth book, she gets her wish - she gets to redesign Olympus.
  • Tsundere: Type A, all the way. Even at the end while making out with Percy.
  • We Used to Be Friends: With Luke.
  • Will They or Won't They?: With Percy. They Do....eventually.
  • Why Did It Have to Be Snakes?: Annabeth does not like spiders (explained by the story of Arachne) and the feeling is apparently mutual. Having to chase a mechanical spider through the Labyrinth was not her favorite thing ever. This aracnophobia and hatred stretches to all children of Athena.
  • Women Are Wiser: When it comes to Percy at least. Justified since she is the daughter of Athena.
    • With that said, it is given a twist in that while Annabeth is certainly smarter and wiser than Percy, she is also more jaded and prideful, whereas Percy is an Ideal Hero who isn't so much stupid as he is impulsive, unfocused, and stupidly loyal. Also, there have been times when Percy was able to come up with Confusion Fu style strategies Annabeth never would have thought of.
    • And on top of all that, when it comes to their adventures, they are both presented as being equally important to any quest's success and both would probably die without the other.

Grover Underwood

A satyr and Percy's best friend, Grover is the Searcher sent to Yancy Academy to keep an eye on Percy. He leads Percy to Camp Half-Blood and joins him on each book's quest (except the second, where the object is to rescue him). His dream is to find the lost god of the wild, Pan. He eventually does. Just in time to watch Pan die.

Played by Brandon T. Jackson in the film series.

  • Adaptational Badass: In the films. He's adept at Cane Fu and personally defeats the Hydra with Medusa's head.
  • Beta Couple: With Juniper.
  • Brown Eyes: Representing his connection with nature.
  • Butt Monkey: Mostly in The Lightning Thief, though he still has moments later on in the series. He simply can't seem to catch a break.
  • Cane Fu: Quite adept at using his crutches as blunt weapons in the films, as Gabe and some guards at the Lotus Casino find out the hard way.
  • Cowardly Lion: He's relatively small for his size, easily frightened, constantly complains about going into dangerous situations, but will literally go to hell and back for his friends.
  • The Chosen One: A variant. In Battle of the Labyrinth, Pan states that he specifically chose Grover to deliver the message of his death to the world.
  • Curtains Match the Window: Brown hair and brown eyes.
  • Disability Superpower: Not really but he presents as this, using crutches when among muggles to disguise his goat-legged gait.
  • Distressed Dude: In Sea of Monsters.
  • Extreme Omni Goat: Well, omni-satyr. Grover will eat anything.
  • Friend to All Living Things: Comes with the territory.
  • Green Thumb: Melodies played on his reed pipes can make plants grow.
  • He's Just Hiding: In-universe, he does not believe Pan dead and his main motivation is to gain a Seeker's license so he can search for him. He's right, and he does find time to see him actually die.
  • Herald: He's the one who reveals the existence of the mythical world to Percy.
  • Heterosexual Life-Partners: With Percy, they share an empathy link.
  • Inept Mage: At first, he grows more into his power as the series progresses.
  • Interspecies Romance: Technically with a tree. In mythology, though, Juniper is a Dryad, and nymphs are often considered to be the female version of a satyr.
  • Magic Music: His music can cause plants to grow.
  • Nice Guy: He remains kind, caring, and protective despite being the resident Butt Monkey.
  • Plucky Comic Relief: More so earlier on before the series gets Darker and Edgier, but the series still manages to get a few jokes in at his expense.
  • Race Lift: Is black in the movie when official art depicts him as a pale redhead.
  • Throw the Dog a Bone: In The Last Olympian, he's made a Lord of the Wild and gets a position on the Council.
  • Took a Level in Badass: Goes from being the unquestionable Butt Monkey in The Lightning Thief to being a competent member of the good guys' team whose skill set complements the more action-oriented demigods.
  • Trademark Favorite Food: Enchiladas. And tin cans.
  • The Unfavourite: The Council of Cloven Elders has a very strong dislike for Grover out of all their satyrs, particularly after book four.

Luke Castellan

Son of Hermes and May Castellan. When he was an infant, his mother tried to become the new host for the Oracle of Delphi. It went horribly wrong. May went crazy from visions of her son's eventual future and became The Ophelia, and spent Luke's childhood babbling at him about his horrible fate. He ran away and met up with Thalia and Annabeth; they eventually made it to Camp Half-Blood, but not before Thalia died. Luke went on a failed quest and came back with a scar. He is a major villain in the series, second only to Kronos, attempting to destroy the gods for their manipulation and abuse towards him.

Played by Jake Abel in the film series.

  • The Ace: Good looking, charismatic, a good fighter, and his cabin's counselor.
    • Broken Ace: And by the time we meet him, he's jaded, unhappy, and desperately craves affection from his aloof father.
  • Always Someone Better: To Percy.
  • Antivillain: Gradually revealed to be this as the series goes on and his more redeeming qualities and tragic backstory come to the surface.
  • Broken Bird: Rare Male Example. His hatred of the gods stems from his own bitterness after being basically abandoned by his father his entire life.
  • Belated Backstory: Until the fifth book, all we know is that his dad sent him on the quest where he got his scar, and he hates him for it.
  • Big Bad: He's effectively this for the first two books, as Kronos is at that point Sealed Evil in a Can and none of the higher-ranking Titans show up until the third.
  • Big Brother Mentor: To Percy in book one. Implied to have been one to Annabeth too.
  • Big Man on Campus: Seemed to be this before betraying the camp — he was counselor of the Hermes cabin, attractive, relatively popular, and a Big Brother Mentor to Percy.
  • Calling the Old Man Out: He's pretty pissed at Hermes, not gonna lie.
  • The Chosen One: He is "the hero" described in the Great Prophecy, not Percy.
  • Cool Sword: Backbiter. Doubly deadly due its being fashioned out of both celestial bronze and steel, meaning it can kill both mortals and gods.
  • Dark Messiah: Definitely twisted and evil as well as basically Kronos's champion, but eventually saves the world.
  • Driven to Suicide: For a good cause. See Heroic Sacrifice below.
  • Driven to Villainy: His bitterness at his father and the treatment of those in the Hermes cabin drive him to betray the camp.
  • Demonic Possession: Reluctantly allows Kronos to possess him as the last resort for Kronos's resurrection.
  • The Dragon: Kronos' right-hand demigod and primary agent. He also serves this role to Atlas during The Titan's Curse.
  • Dying as Yourself: As Luke, not Kronos.
  • Face–Heel Turn: Goes from friendly, if somewhat aloof, mentor character to Percy to one of the major antagonists in the series. And back again, if only for a few moments.
  • Fallen Hero: After joining Kronos.
  • For Want of a Nail: He and Percy are this to each other. They're both sweet, compassionate fighters who become highly admired by their colleagues. Both are proficient swordsmen, handsome, and both consider Annabeth to be one of the most important people in their lives. They even have similar narrative voices, as demonstrated by his first-person short story in The Demigod Diaries. The divergence hits with their mothers. Luke's mother was tragically driven insane when she attempted to channel the spirit of the Oracle of Delphi and spent most of his childhood babbling at him about his awful fate, leaving him scared, resentful, and starved for affection. His anger towards the gods was only increased by a quest that left him scarred and mostly ignored by the gods, including his father. He lashes out towards the manipulation by trying to unseat them and almost brings about the end of the world. By contrast, Percy is closer to his mother than anyone, and it's heavily implied she taught him everything he knows about kindness, morality, and love.
  • Freudian Excuse: Once you find out his backstory in The Last Olympian. His mother's kind of crazy and his father's distant, driving him to run away.


Sons and daughters of the Greek gods. They have heightened senses and combat skills that take the form of ADHD and their minds are hard-wired to read Ancient Greek, which gives them trouble reading English. Their skills and personalities are inherited from their divine parents (children of Aphrodite will be Love Freaks, children of Athena will be highly intelligent, and children of Apollo will be musically and/or medicinally inclined, as well as a good shot with a bow).

  • Attention Deficit... Ooh, Shiny!: Thanks to their combat skills.
  • Age Lift: Applies to the major characters in the film series; instead of being 12-13 in the first book, they are in their late teens in the first film.
  • Bastard Bastards: Played with in the evil demigods, most of them are fiercely loyal to their mortal parent but not to the rest of the Olympians, believing they mistreated their mortal parent.
  • The Beautiful Elite: Aphrodite's children especially, although it's implied that this applies to most, if not all, the demigods due to their divine heritage and the gods' propensity for attractive partners.
  • The Bully: The children of Ares are invariably portrayed as this, as well as having callous personalities and a disturbing affinity for violence and killing. (Its implied that many serial killers and Sociopathic Soldiers are children of Ares).
  • Child Soldiers: Most of them are between the ages of 12 and 20. Though its somewhat subverted in that they are trained for their survival as oppose to being trained as soldiers. The children of Ares are literally born as this.
  • Gang of Hats: As stated below, each demigod shares some parental-domain-related power with their half-siblings - Aphrodite's children are all ridiculously gorgeous, Hephaestus's children are good with machinery, etcetera.
  • Green Thumb: Demeter's children. Dionysus' twins, too - they work best with grapes, but since their dad isn't allowed to touch anything vaguely related to wine, they settle for strawberries instead (just them walking among the strawberry fields makes them of better quality already.)
  • Heroic Bastards: The heroic demigods, anyway, since no one's godly and mortal parents are married.
  • Human Mom Non Human Dad: Played straight or inverted with the demigods' parentage.
  • Improbable Aiming Skills: Apollo's sons and daughters are good at archery.
  • "L" Is for "Dyslexia": Brains are hard-wired for Ancient Greek.
  • The Medics: Apollo's kids, thanks to their father.
  • Neurodiversity Is Supernatural: Their ADHD is due to their bodies acting on combat instinct while their dyslexia is due to being hardwired for Ancient Greek.
  • Superpowerful Genetics: Powers relating to the domains of their divine parentage. For example, Demeter's children will have Green Thumbs, and Athena's children will be crazy-smart.
  • Supreme Chef: Demeter's children; it's part of their mother's domain.
  • Teen Genius: Children of Athena and Hephaestus. Athena kids are wise and spend their time reading and researching, while Hephaestus kids are good with machinery.
  • Wrench Wench: Daughters of Hephaestus are just as good with mechanics as his sons.
  • You Can't Fight Fate: A running theme of the series, justifiable given its origins. However, prophecies being what they are, it's terribly easy to misinterpret one's fate.

Clarisse La Rue

Played by: Leven Rambin
Voiced by: Marisol Romero (Latin-American Spanish), Mutsumi Tamura (Japanese)

Daughter of Ares and head counselor of Cabin Five, Clarisse frequently bullies new campers and her first appearance involves trying to shove Percy's head in a toilet. She and Percy never get along, but they do develop respect for one another.

  • Achilles in His Tent: In a particularly brilliant History Repeats example, Clarisse refuses to let the Ares campers refuse to join the Battle for Manhattan because they believed they deserved a chariot they and the Apollo campers had been fighting over (which eventually went to the Apollo cabin). Just when they're on the losing side, Silena impersonates Clarisse and leads them into battle, getting killed in the process. Hence her subsequent Roaring Rampage of Revenge. Guess who did this before? Achilles, after his beloved best friend/cousin Patroclus's death.
  • Action Girl: She isn't the head counselor of the war god's cabin for nothing.
  • Adaptational Attractiveness: Percy doesn't describe her as particularly attractive in the books, while the graphic novel depicts her as something of a Brawn Hilda. In the film, she's played by Leven Rambin, best known for playing the stunningly beautiful Glimmer from The Hunger Games.
  • Animal Motifs: The boar and, less flatteringly, the pig.
  • Badass Boast: "I AM CLARISSE, DRAKON-SLAYER! I will kill you ALL!"
  • The Big Girl: Of all the female characters in the series, Clarisse is the most adept at physical combat, thanks to her masculine physique.
  • Blade on a Stick: Her Weapon of Choice is a barbed spear that electrocutes its targets.
  • Blood Knight: Takes after her papa.
  • Boyish Short Hair: Hacks off most of her hair during her quest in The Titan's Curse, though she grows it back out in The Battle of the Labyrinth.
  • Brawn Hilda: She has the body of a huge, musclebound, size XXXL male rugby player, thin stringy-looking hair, foul body odor, and (if Percy's "female(ish)" comment in The Demigod Files is anything to go by) a rugged, manly face.
  • The Bully: Initially. She begins to mellow down as the series goes on and she gets a boyfriend.
  • Cool Helmet: Wears a uniquely boar-shaped helmet, presumably to symbolize her status as head counselor of the Ares Cabin. It becomes a plot point later when Selena impersonates Clarisse to lead the Ares Cabin into battle.
  • Face of a Thug: She's huge, built like a swole man, and has a brutish, manly face that is heavily scarred and only capable of emoting "evil sneer[s]". She's also Silena Beauregard's best friend and nursed Chris Rodriguez back to (physical) health after rescuing him from the Labyrinth.
  • Full-Boar Action: Owns a set of boar-themed armor with an appropriately-shaped helmet.
  • Gag Nose: Has a huge, aquiline nose in the graphic novels.
  • Glory Seeker: Seeks fame and glory, much like Ares's War Is Glorious mindset.
  • Hidden Depths: She turns out to be a Jerk with a Heart of Gold. She's also secretly afraid of disappointing her father, as shown in The Sea of Monsters.
  • History Repeats: See Achilles in His Tent above.
  • Human Mom, Non-Human Dad: Her father's Ares so her mom is presumably a mortal woman.
  • Human Popsicle: For a short while during the battle of Manhattan.
  • I Call It "Vera": She calls her second electric spear "Maimer". (Everyone else calls it "Lamer".)
  • Jerk Jock: Initially, she's the brawny kind who stuffs peoples' heads down toilets.
  • Jerk with a Heart of Gold: Matures into this around the fourth book.
  • The Lad-ette: She just as tough, possibly even more, than the other sons of Ares.
  • Lady Looks Like a Dude: Implied in the books. The graphic novel takes this Up to Eleven to the point that her face is indistinguishable from an adult man's in close-up shots, minus the facial hair.
  • Large Ham: Clarisse would like you to know that she is CLARISSE, DRAKON-SLAYER!
  • Muscles Are Meaningful: Unlike the slender-yet-toned Annabeth and Thalia, Clarisse is introduced as the resident Fat Girl with Stout Strength who builds up muscle mass during the last two books. By the start of The Last Olympian, she's "as big and beefy as a [male] rugby player" and has the athleticism to match.
  • Odd Friendship: With Silena.
  • Official Couple: With Chris.
  • O.O.C. Is Serious Business: In book 5, she is so angry at the Ares cabin being dissed that she and her cabin refuse to join the other demigods in defending Olympus. We repeat: Clarisse refused to join what could have possibly been the biggest and most monumental battle of her life.
    • Her refusal to go on the quest immediately informs the characters and the readers just how terrifying the labyrinth is.
  • Pet the Dog: Her concern for and friendship with Chris and Silena.
  • Put on a Bus: Mostly absent from the events of The Titan's Curse.
  • Red Is Heroic: Subverted. She wears bright red armor and is one of the best fighters at Camp Halfblood but is (to everyone not named Chris or Selena) a selfish Jerkass bully who at her worst will abandon her allies for the sake of pride or glory.
  • Red Oni, Blue Oni: She's the red oni any time she works with anyone else, period. Which is not often.
  • The Rival: To Percy.
  • Roaring Rampage of Revenge: When the Drakon fatally wounds Silena.
  • Shock and Awe: Likes to use electric spears in combat.
  • Stout Strength: Implied to be obese in the first book and has "hands like iron" (referring to her grip strength); even after building up muscle over the course of five books, she's still more burly than ripped.
  • Tomboy and Girly Girl: Tomboy to Silena's girly girl.
  • "Well Done, Son!" Guy: Like Percy, she's a sucker for her father's good opinion.

Chris Rodriguez

Son of Hermes and boyfriend of Clarisse. He's introduced as working on Luke's side and having gone insane when he went on a mission into the Labyrinth, but Dionysus heals him at the end of Battle of the Labyrinth.

Played by Grey Damon in the film series.

Silena Beauregard

Daughter of Aphrodite, ergo stunningly beautiful and in love with love. Extremely talented with handling pegasi. Hooks up with Beckendorf between the fourth and fifth books.

  • Anti-Villain: In the final book, she turns out to be The Mole for Kronos, but only because she'd been charmed by Luke into telling him everything and then blackmailed into keeping it a secret.
  • The Beastmaster: Pegasi, although we never see her use it in an actual fight.
  • Berserk Button: Children of Aphrodite don't usually participate in capture the flag. But when it's against the Hunters...
    "I'll show them 'love is worthless'. I'll pulverize them!"
  • Death by Disfigurement: Her face is burned off by acid. Ouch, Silena.
  • Death by Irony: A daughter of Aphrodite dies as a result of horrific acid burns.
  • El Cid Ploy: Disguises herself as Clarisse in order to fool the Ares cabin into fighting in the war. It works, but at the cost of her own life.
  • Go Out with a Smile: She dies with a smile on her face, thinking of Beckendorf.
  • Hard Work Hardly Works: For all the combat training they go through at Camp, Silena's not that great in a fight. Attributed to her being a daughter of Aphrodite.
  • Heroic Sacrifice: As mentioned, she sacrificed her life to trick the Ares cabin.
  • High-Heel–Face Turn
  • History Repeats: Fulfills the Patroclus role in the Trojan war. See Achilles in His Tent above for elaboration.
  • Human Mom Non Human Dad: Inverted; her mother is a goddess while her father is a mortal.
  • Killed Mid-Sentence: Manages to eke out "See Charlie..." just before dying.
  • Lovable Alpha Bitch: Head counselor of the Aphrodite cabin and daughter of a rich man, yet Percy describes her as one of the nicest Aphrodite girls.
  • Love Freak: Comes with being a daughter of the love goddess.
  • Meaningful Name: Although it literally translates as "handsome gaze", her name means "regarded highly".
  • The Mole: She was the reason Kronos knew exactly what Camp Half-Blood was planning: she had been charmed by Luke into telling him everything.
  • Neat Freak: The Aphrodite cabin is always spotless.
  • Nice Girl: Nice and amiable to everyone, in contrast to the other Aphrodite girls.
  • Official Couple: With Beckendorf.
  • Redemption Equals Death: She dies and is remembered as a hero, despite being The Mole the whole time.
  • Spoiled Sweet: Her father owns a chocolate factory, which is what attracted Aphrodite.
  • Tomboy and Girly Girl: The girly girl to Clarisse's tomboy.

Charles Beckendorf

Son of Hephaestus and constantly hanging out in the camp's metal forges. Can build bombs.

  • Affectionate Nickname: His girlfriend calls him "Charlie."
  • The Big Guy: Expected from a son of Hephaestus.
  • Black Guy Dies First: The first half-blood to die in The Last Olympian.
  • Brother-Sister Incest: Averted in the case of his and Silena's relationship, considering the fact that in the fifth book, it is explained that gods do not have DNA, and thus makes any arguments against inter-camp relationships null and void; with the one exception of two people from the same cabin.
  • Fatal Family Photo: He just had to show off a picture of his girlfriend right before he raids the Princess Andromeda...
  • Cool Big Bro: To Percy. He's older and an experienced demigod, but has no problems befriending Percy. Unlike Luke, he remains this trope throughout the series.
  • Gadgeteer Genius: As a son of Hephaestus, he's very talented with machinery.
  • Genius Bruiser: As a son of Hephaestus, Beckendorf has mad engineering skills.
  • Gentle Giant: Large and well-built, but a down-to-earth Nice Guy.
  • Heroic Sacrifice: Blows himself up in order to land a hit on Kronos.
  • Human Mom, Non-Human Dad: His dad's Hephaestus, so his mom is presumably a mortal woman.
  • Last Name Basis: Is referred to as Beckendorf by virtually everyone (except Silena).
  • Nice Guy: One of the friendliest camp counselors, and looked up to by everyone.
  • Official Couple: With Silena.
  • Outgambit: He manages to play Kronos, the Big Bad, like a fool. Beckendorf my man, you get mad props for that.
  • The Quiet One: Percy notes that Beckendorf was a guy of little words, but when he spoke everyone tended to listen and respect what he was saying.
  • Sacrificial Lion: Killed to show just how dead serious Kronos and co. are.
  • Scary Black Man: A heroic version; Percy describes him as the type that monsters would run from.
  • Together in Death: With Silena.

Connor & Travis Stoll

Sons of Hermes—not twins, but a year apart. They succeed Luke as co-counselors of Cabin Eleven and the main pranksters of Camp Half-Blood.

  • Human Mom, Non-Human Dad: Their dad is Hermes, so their mom is presumably a mortal woman.
  • Meaningful Name: Lampshaded: their father is the god of thieves and their last name is Stoll(not that they got the joke).
  • The Tricksters: Just like their father, the god of thieves.
  • Those Two Guys: Always around to comment on the camps' goings-on.

Thalia Grace

Daughter of Zeus and an eighties starlet with a poofy hairdo. Her birth broke the pact the Big Three had made after World War II to never have children again. She ran away from her alcoholic mother when she was younger, met up with Luke and eventually Annabeth, and made her way with them to Camp Half-Blood. There they were overwhelmed by monsters and Thalia stayed behind to hold them off, dying in the process. Zeus turned her body into a pine tree.

Played by Paloma Kwiatkowski / Katelyn Mager (young) in the film series.

  • Abusive Parents: To say nothing of Zeus' abandonment, Thalia's mother was initially loving but then grew cold and distant, not to mention an alcoholic. The only reason Thalia didn't run away sooner was because of her younger brother Jason.
  • Action Girl: Like most female demigods.
  • Acrophobic Bird: Kind of sucks that the daughter of lightning and the sky (which gives her wind and electricity powers) is scared of heights.
  • Apocalypse Maiden: Defied. Because she has the Fatal Flaw of being weak when offered power, like her father, she avoids being the demigod in the prophecy to make a choice that will save or destroy Olympus upon turning sixteen by becoming a Hunter and staying fifteen.
  • Archer Archetype: After she joins the Hunters of Artemis in book three, she grows into this while wielding a bow with arrows as her weapon, becoming calm, calculating, and a little distant.
  • Aloof Dark-Haired Girl: In contrast to blonde heroine Annabeth and Fiery Redhead Rachel, Thalia is sarcastic, slightly petty, and cold. She grows into this trope more when she becomes a Hunter, becoming much more mature and aloof.
  • Back from the Dead: More like back from being turned into a pine tree.
  • Broken Bird: She seems to be getting better.
  • Cool Big Sis: Was this to Annabeth while the two of them and Luke were on the run; Annabeth remembers Thalia's experience with some reverence.
  • Cool Crown: Wears a silver circlet after becoming Artemis's lieutenant.
  • Celibate Heroine: After she joins the Hunters, as they swear off men.
  • Dangerous Sixteenth Birthday: It never happens, leaving Percy and Nico as the only candidates for the Great Prophecy's "hero."
  • Defrosting Ice Queen: Starts out as cold and arrogant, but mellows down eventually.
  • Don't You Dare Pity Me!: At first.
  • Fangirl: Of punk rock and roll.
  • Fatal Flaw: She's said to be weak when offered power, like her father.
  • Human Mom, Non-Human Dad: Her dad's Zeus and her mom is a White-Dwarf Starlet.
  • Immortality Begins at 20: A day short of sixteen, rather.
  • The Lancer: To Percy. Also somewhat literal, considering her weapon of choice, aside from her standard bow and arrow, is a spear. That grows out from a can of Mace. She also serves this role to Zoe during The Titan's Curse, where Zoe is The Leader of the quest to rescue Artemis and Thalia is the one who clashes with Zoe the most.
  • Older Than They Look: She's twenty-one, but being a pine tree stunted her aging so she appears fifteen.
  • Perky Goth: More of a goth-punk mix. She wears her hair short and choppy, dresses in dark colors, and likes Green Day a lot, but she's a really nice kid once she defrosts.
  • Plucky Girl: Despite her cold personality and everything she's been through., she's pretty eager to fight and is always brave.
  • Posthumous Character: In the first two books she's remembered through other characters' recollections, but she's brought back to life at the end of the second book.
  • Promoted To Parent: For Annabeth.
  • Put on a Bus: After she joins the Hunters, she becomes a vaguely mentioned character. However, the bus comes back in the fifth book.
  • Rookie Red Ranger: Eventually becomes the leader of the Hunters of Artemis, despite recently joining and being one of the youngest members.
  • Refusal of the Call: Opts to stay a day short of sixteen forever instead.
  • Ship Tease: With Luke in The Titan's Curse and The Diary of Luke Castellan.
  • Shock and Awe: Part of her dad's domain.
  • The Snark Knight: She's rather sarcastic, emphasizing her somewhat distant personality.
  • Transflormation: Spent some time as a pine tree for health reasons.
  • We Used to Be Friends: With Luke.
  • Why Did It Have to Be Snakes?: Her acrophobia is said to be ironic, considering she's a daughter of the Lord of the Sky.

Bianca di Angelo

Daughter of Hades and Maria di Angelo, Bianca and her brother were born in the 1930s.

  • Action Girl: As a Hunter, she's pretty skilled with a bow.
  • Big Sister Instinct: Towards Nico. She practically raised him up until they got to Camp Half-Blood.
  • Braids of Action: After becoming a Hunter, she wears her hair in a braid.
  • The Chick: Serves this role in The Titan's Curse, as the youngest (physically) and least experienced member of the team that goes to rescue Artemis.
  • Cynicism Catalyst: For Nico. Her death left him shell-shocked and bitter. When we meet him next, he's nothing like the Cheerful Child he was while she was alive.
  • Dead Person Conversation: Nico has a couple with her after her death.
  • Dropped a Bridge on Her: Her death.
  • Fatal Flaw: Holding grudges. Very subtly illustrated in her attitude towards her brother, Nico: she loves him dearly, because she's all he has in the world, but she also resents him because being all he has means she can't do anything for herself. And for bonus points, it's indirectly fatal. When she chose to join the Hunters and leave Nico at Camp Half-Blood, Zoe got the idea that she would be a good choice to groom as the next leader of the Hunters, and drags her along on the quest where she dies. What ends up killing her is guilt: she feels bad for resenting Nico, so she steals a souvenir for him from Hephaestus' junkyard, which activates the automaton defending it. She sacrifices herself to shut it off.
  • Fish Out of Temporal Water: Born in the 1930s, but she doesn't seem to be having too much difficulty adjusting.
  • Heroic Sacrifice: In order to save the rest of the party.
  • Human Mom, Non-Human Dad: Maria di Angelo and Hades.
  • Knife Nut: When low on arrows, she takes to using a dagger against the undead soldiers and manages to take out one.
  • Never Found the Body: Her body is not recovered from the wreck of Talos. Since she got electrocuted, it probably wasn't in good shape.
  • Nice Girl: Sweet-tempered and patient, especially when dealing with her younger brother. See, however, Fatal Flaw above.
  • Nice Hat: Wears a green hat at the beginning of The Titan's Curse, which is noticeable enough that Percy's narration often calls her the girl in the hat before he gets her name.
  • Promotion to Parent: With their parents unknown and no relatives to speak of, Bianca had to be the parent to her two-years-younger brother. It's part of why she joined the Hunters because she wanted to do something for herself for a change.
  • The Quiet One: Initially, she's depicted as keeping to herself and not drawing attention.
  • Reincarnation: The sequel series reveals that she chose to be reincarnated after her death.
  • Shrinking Violet: Before becoming a Hunter. Afterwards Percy notes she looks more confident.
  • Spirit Advisor: Becomes one of sorts after her death, warning Nico not to summon their mother's spirit.
  • Strong Family Resemblance: Looks a lot like her mother. It's implied this is the reason for Hades favoring her over Nico.
  • We Hardly Knew Ye: Killed off in her debut book.

Nico di Angelo

Younger brother to Bianca and son of Hades and Maria di Angelo. After Bianca's death], Nico runs away and teaches himself to use his unique powers.

  • Annoying Younger Sibling: Until he gets over Bianca's death.
  • Apocalypse Maiden: Like Percy and Thalia, the idea that he could be the demigod of the Great Prophecy is considered, and Hades goes so far as to trick Nico into imprisoning Percy to ensure that Nico is the one.
  • Awesome Moment of Crowning: When he declares himself the king of ghosts.
  • Badass Adorable: Is one of the youngest and smallest characters in the series, but also one of the most badass.
  • Beware the Nice Ones: Adorably perky and annoying in The Titan's Curse, out for blood in The Battle of the Labyrinth.
  • Big Damn Heroes: Nico loves this so hard.
  • Big Sister Worship: Absolutely loved his sister Bianca, and her death left him with scars he still hasn't gotten over.
  • Black Swords Are Better: Nico's shadow-black stygian iron sword just happens to absorb a monster's essence when they're killed by it. Neat.
  • Break the Cutie: When he learns about Bianca's death.
  • Calling the Old Man Out: Thankfully, his father is possibly the only Olympian god that could be pestered that far without smiting his child for impudence.
  • Cool Sword: All the other demigods have to use plain old celestial bronze. Nico gets black Stygian iron because he's just that special.
  • Cheerful Child: Before Bianca's death.
  • Dark Is Not Evil: He's frequently described as creepy by someone who is four years older than him. Even Nico himself knows his personality, or just being the son of Hades, would make him an outcast. The fifth book gives him a well-deserved happy ending.
  • Deadpan Snarker: Has a moment of it in The Last Olympian:
    Percy: I think the river thing worked.
    Nico: Oh gee, you think?
  • Dishing Out Dirt: Shows some earth-mover abilities, especially at the end of Battle of the Labyrinth.
  • Due to the Dead: When King Minos tells him he can just summon the dead by offering them animal blood, Nico insists he will treat them with respect and offers them Happy Meals and Coke.
  • Eerie Pale-Skinned Brunette: First described as olive-skinned, but he seems to get paler and paler as the series progresses. Possibly a side effect of spending time in the Underworld: in Percy Jackson's Greek Gods, Percy says Hades' complexion got much paler after he became King of the Underworld as well.
  • Emo Teen: A preteen version. It's not that he doesn't have a good reason for angsting, but it does get kind of ridiculous at times. It doesn't help that he has the ability to communicate with dead people, but the one ghost he wants to speak to is avoiding him and is later reincarnated.
  • Fish Out of Temporal Water: Averted. Even though he was frozen in time, he adapts quite well; I don't think they had trading card games in the 1920's.
  • Fatal Flaw: Holding grudges. He holds Percy responsible for Bianca's death.
  • Human Mom, Non-Human Dad: His father is Hades.
  • Ineffectual Loner: Downplayed, as he could be pretty effectual while working alone as seen in both “The Battle Of The Labyrinth “and “The Last Olympian”.
  • Missed the Call: Percy got it instead of him.
  • Necromancer: Summons an army of the dead in the last book.
  • Nice to the Waiter: Hestia notes that Nico was one of the first demigods to bother talking to her in ages.
  • Older Than They Look: Bianca and Nico were born in the 1930's, but he and his sister were put in the Lotus Hotel by their father. This kept them from aging until the Prophecy came up.
  • Perky Goth: Dresses in black and leather, and is the son of Hades. Despite this, he can be a pretty friendly guy.
  • Punny Name: Nico di Angelo.
  • Ship Tease: Played with rather epically. He is depicted as being shy around Annabeth, which Percy interprets as him having feelings for her. Come House of Hades, we learn that he was actually jealous of her, as his true crush was on Percy himself.
  • Tell Me About My Father: Nico's quest in The Last Olympian is to make his past make sense, and the only way he can do that is to convince Hades to tell him about his mom.
  • Took a Level in Badass: Yes, the cute, excited little ten year old turns into one of the most badass characters in the series.
  • Troubled, but Cute: At first he's just an annoying cute little bro, then his sister dies. He stays cute.
  • The Unfavourite: Hades makes it blatantly obvious that he likes Bianca more than Nico.
  • You Should Have Died Instead: Hades implies this. He gets better.

Ethan Nakamura

Son of Nemesis, the goddess of revenge and balance, Ethan was one of the many residents of Cabin Eleven who went unclaimed or had no cabin of their own because their parents were minor gods. He promised his mother he would make a place on Olympus for the minor gods, and in exchange she took his eye.

  • Eyepatch of Power: Wears one to cover his missing eye.
  • Eye Scream: His mother took his eye part of the promise that he would change Olympus for the better.
  • Fallen Hero: As a former camper.
  • Heel–Face Revolving Door: Starts out as a hero, then turns to Kronos's side, then turns back to being a hero again at the last second in The Last Olympian, resulting in his death.
  • Hoist by His Own Petard: When he tries to kill Kronos, Ethan's blade shatters and one of the pieces spears him.
  • Mook Lieutenant: Kronos/Luke's main demigod subordinate during The Last Olympian.
  • Pride Before a Fall: His mother is the goddess that causes the "fall" part of this trope. Ethan himself follows in her footsteps.
  • Redemption Equals Death: In The Last Olympian, he changes sides at the last second when he realizes that Kronos doesn't build, only destroys, and tries to kill Kronos. Kronos, in turn, kills him for turning against him.
  • Stealth Pun: He is blind in one eye. His goal is to bring justice for the minor gods. You could say...justice is blind. (Or, in this case, half blind.)
  • Tarot Motifs: 8th, Justice.
  • Ungrateful Bastard: Despite Percy saving his life, Ethan pledges his loyalty to Kronos. This is the last demigod needed to resurrect Kronos.

    Other Camp Residents 


Introduced as Mr. Brunner, Percy's Latin teacher, Chiron is actually an immortal centaur keeping an eye on Percy. He serves as activities director of Camp Half-Blood and the Voice Of Reason.

Played by Pierce Brosnan in the film adaptation of The Lightning Thief and Anthony Head in The Sea of Monsters.


Tyson is first introduced as a school friend of Percy's, but he is later revealed to be a Cyclops - one-eyed children of Poseidon, therefore making him Percy's half-brother.

Played by Douglas Smith in the film series.

  • The Ace: He sounds dumb sometimes, and he can be a bit of a crybaby, but he can do anything.
  • Adaptational Attractiveness: In the movie.
  • The Big Guy: Already the largest of Percy's main team, as a cyclops he has superhuman strength. Tyson's strength is considered extreme even for a cyclops though—he was able to defeat a fellow cyclops named Ma Gasket with two punches, and Ma Gasket was considered powerful for a cyclops herself. He was also able to bring down a Colchis bull with his bare hands and survive Kampe's poison. Being immune to both fire and water is just icing on the cake.
  • Cloudcuckoolander: He seems he's got a few screws loose, but actually has mad engineering skills.
  • Cyclops: Is one.
  • The Engineer: Becomes one after working in the Cyclops's forge.
  • Gentle Giant: Over six foot tall, but really childish and willing to get along.
  • Genius Ditz: He is apparently really good at Monopoly.
  • Nice Guy: See Gentle Giant.
  • Trademark Favorite Food: Peanut butter.
  • Voice Changeling: Apparently all cyclops have this power, it is considered creepy so he doesn't use it much.

Mrs. O'Leary

Quintus's dog. Later becomes Percy's after Quintus/Daedalus dies.


Percy's trusty horse, who he rescued from slavery in Luke's ship. Percy can talk with him because he's a son of Poseidon, who made horses.

  • Cool Horse: He's Percy's trusty steed, and he's cool.
  • Don't Call Me "Sir": Most subjects of Poseidon insist on calling Percy "lord," but he insists they use his name. Blackjack compromises by calling him "boss."
  • Just Whistle: This is how Percy can summon him, as well as additional pegasi (Guido and Porkpie say hi) if needed.
  • Horseback Heroism: Much of the Final Battle is done with Percy riding him.
  • Pegasus: That's what he is.
  • Retcon: He was referred to by Percy as female in The Sea of Monsters, but in all books after that he's male.
  • Sapient Steed: He is, technically, a person, but he doesn't seem to mind serving as a mount.


Grover's dryad girlfriend, who is first introduced in the third book.

  • Beta Couple: With Grover, with whom she gets with far quicker than Percy and Annabeth do.
  • Clingy Jealous Girl: Implied to be this in The Demigod Files, where Grover comments on the beauty of the tree nymphs up in Lake Placid, but then asks the interview to edit that part out so that Juniper won't kill him.
  • Exactly What It Says on the Tin: Her tree is a juniper tree, hence her name.
  • Genki Girl: Very cheerful.
  • Glomp: Does this to Grover when he comes back to camp in the final book.
  • Graceful Ladies Like Purple: Wears a purple gossamer dress in The Last Olympian.
  • Green Eyes: She has green eyes as an indication of her status as a wood nymph.
  • Interspecies Romance: She's a dryad, while Grover is a satyr.


Sally Jackson

Percy's mother, who can see through the Mist. A staple in his life, she's selfless, funny, and hardworking, and Percy's first and best mentor.

Played by Catherine Keener in the film series.

  • Good Parents: Genuinely cares about her son's well-being, and shows it a lot.
  • I See Them, Too: Can see through the Mist.
  • Kaleidoscope Eyes: Described as being blue, but they change color in the light.
  • The Maiden Name Debate: She kept her name when she married Gabe Ugliano. Can you blame her? It's not specifically brought up with her second husband.
  • Mama Bear: She might be just a mortal woman, but she never lets this get in the way of her and Percy. She married Gabe Ugliano specifically because he smelled so strongly that it camouflaged Percy from monsters who would have otherwise smelled him.
  • Happily Married: To Paul, after getting rid of Gabe.
  • Not So Different: Percy notes near the end of the first book that she has a rebellious streak in her too, mellowed by years and circumstance.
  • Parents as People: Her marriage problems are given extensive focus.
  • Parental Abandonment: Her parents died in a plane crash when she was young.
  • Shotguns Are Just Better: Uses a shotgun to send a monster flying in the fifth book.

Paul Blofis

Sally's boyfriend and eventually second husband, Paul is Percy's English teacher. He finds this arrangement slightly awkward.

  • Action Dad: In the fifth book, where he picks up a sword and promptly kills a dracaena with it. After which he says a memorable quote:
    "I hope that was a monster I just killed. I was a Shakespearian actor in college! Picked up a little swordplay!"
  • Badass Normal: Is a normal human, with no powers, who can't see the monsters attacking his stepson. This does not stop him picking up a sword and killing them anyway.
  • Happily Married: Marries Sally in Battle of the Labyrinth.
  • Punny Name: Percy initially calls him Paul Blowfish behind his back, but stops doing it after he gets to know him better.
  • Second Love: To Sally, after Poseidon.

Frederick Chase

Annabeth's estranged father, who is fascinated by historical warfare.

Rachel Elizabeth Dare

A mortal girl Percy befriends, who is later revealed to be able to see through the Mist. In The Last Olympian, she becomes the host for the Oracle of Delphi.

May Castellan

Luke's mother, who is described as kind-hearted and multitalented. Until she tried to become the Oracle of Delphi despite Hades's curse, and paid the price for it.

Gabe Ugliano

Percy's abusive stepfather at the beginning of the series. He isn't the nicest of guys. By the end of The Lightning Thief, he's turned into a stone statue by Medusa's head. It's heavily implied that Sally used this on him.

  • Abusive Parents: He's a downright crappy stepfather to Percy.
  • Asshole Victim: Turning someone into stone from cold blood would have ordinary been a rather morally ambiguous act, but by the point it happens, he has proven himself such an asshole that you will at worst not care, at best cheer.
  • Domestic Abuser: Implied to be one towards Sally.
  • Evil Smells Bad: Percy describes him as such.
  • Fat Bastard: Very fat, and very mean.
  • Jerkass: Especially to Percy.
  • Meaningful Name: His last name should have plenty of hints as to his personality.
  • Taken for Granite: Gets turned to stone by Medusa's head. Sally later sells this statue for quite a lot of money.


Tropes that apply to many of the gods:

  • A Form You Are Comfortable With: Justified, as anyone seeing them in their true forms would probably be crispy-fried in an instant.
  • Antagonistic Offspring: To Kronos.
  • Berserk Button: Don't sit in their chair. Granted, said chairs are 10-foot-tall thrones on the summit of Mount Olympus (now located several miles above the top floor of the Empire State Building), so it's not like a mortal can accidentally sit in their chairs.
  • Bunny-Ears Lawyer: Many of the gods: Poseidon is one of the three most powerful gods in existence, and he walks around in a Hawaiian shirt and shorts; Dionysus likes playing Pac-Man and whines about being forbidden to drink wine and can only drink pop; and Apollo is the god of medicine, drives the sun chariot as a Maserati Spyder, and lets fifteen-year-old girls take it for a spin.
  • Gods Need Prayer Badly: Subverted, as their strength comes not from prayer, per se, but the Western Civilization. The gods can still lose strength if their discipline is not respected (like Pan does as the wild is increasingly damaged), and it's implied that the destruction of Olympus would plunge the western world into chaos.
  • Honest Corporate Executive: Or Corrupt Corporate Executive in some cases. A lot of the gods run their disciplines like modern day businesses- Hermes has a postal service, Hephaestus has a TV station, and Iris lets demigods send emails through rainbows.
  • Jerkass Gods: Most of the gods at one point or another, but especially Zeus and Ares. Even the most sympathetically portrayed have their moments.
  • Mayfly-December Romance: With any demigod's mortal parent. The only major Olympians who do not have children are Hera, Hestia, and Artemis.
  • Parental Abandonment: They're both victims of this and guilty of it.
  • Really 700 Years Old: Bordering on Time Abyss.
  • Voluntary Shapeshifting: All of them can change their appearance at will, and hence have "preferred" forms.
  • You Cannot Grasp the True Form: Gods take different shapes due to the fact that their true forms will incinerate anyone who sees them as such.


The goddess of love and beauty. As one might expect, her role in an adventure story is pretty minimal.

Played by Serinda Swan in the film series.

  • All Girls Want Bad Boys: Her relationship with Ares.
  • Empathic Shapeshifter: When one encounters her, she will constantly alter her appearance to better fit the viewer's personal ideal of beauty.
  • Eternal Love: Even if the rest of Olympus were to crumble into dust, Aphrodite would live on, since she represents love and emotional attachment.
  • Hello, Nurse!: As the goddess of love and beauty, she appears as everybody's personal standard of gorgeousness, invoking this.
  • Love Freak: She's very passionate about her domain.
  • Obfuscating Stupidity: It's hinted she's a lot smarter than she lets on.
  • Proud Beauty: She's very proud of her status as the goddess of beauty.
  • Shipper on Deck: She even tells Percy that she'll screw with his relationship with Annabeth just for the hell of it.


The god of war. As one might expect, he's petty and not that bright.

  • Abusive Parents: It's implied that he was this to Clarisse.
  • Agony of the Feet: Percy beats him in combat by stabbing him in the foot.
  • Badass Biker: His preferred form is one of these, riding a black Harley-Davidson.
  • Battle Aura: Emanates an aura that makes people violently angry.
  • Blood Knight: Loves combat quite a lot, as the god of war.
  • Boots of Toughness: Part of his biker guise.
  • Cool Shades: Wears them as part of his Badass Biker persona.
  • Dumb Muscle: Sort of. While quite a competent tactician, Ares's pettiness and temper causes him to forgo strategy and use brute force in battle. His arrogance also causes him to underestimate his opponents. This is in contrast to Athena, goddess of tactical warfare.
  • Everybody Hates Ares: He is depicted as an unlikable, petty jerkass who bullies his children. He's only considered a "good guy" because he's a god and not a Titan, and even his family doesn't know why they put up with him sometimes. That said, he has done some things that contributed to Titan advances.
  • The Friend Nobody Likes: Even his own family doesn't know why they put up with him, and he verges Nominal Hero status by being a god and not a Titan. The exception to this is his lover Aphrodite.
  • Human Resources: The saddle of his bike is implied to have been made from human skin.
  • Jerkass: Ares is not that nice. He bullies his demigod children and picks fights with Percy every chance he gets.
  • Karma Houdini: Other than losing a fight against Percy, he was never punished for his actions in The Lightning Thief.
  • My Horse Is a Motorbike: The bike is actually his chariot in modern form.
  • One-Man Army: Can bless demigods and possibly mortals, temporarily turning them into one of these.
  • Shotguns Are Just Better: The Mist surrounding his duel with Percy in The Lightning Thief has Ares using a shotgun.
  • So Proud of You: To Clarisse, after she single-handedly kills the drakon.
  • Sore Loser: After losing to Percy in a duel, he curses Percy so that he needs his sword skills the most, his strength would fail him. It comes back to bite Percy in The Titan's Curse when he goes up against Atlas and the curse kicks in when Percy tries to chop Atlas' spear.
  • Unwitting Pawn: Of Kronos and Luke in The Lightning Thief.


The goddess of the moon, the hunt, and maidens. She is sworn as a perpetual maiden, and thus has no true children, but she does "adopt" maidens who foreswear men forever. Her main weapon in combat is a bow and quiver of arrows to use with it.

Played by Ona Grauer in the film series.

  • Action Girl: Very good in combat, as expected of the goddess of the hunt.
  • Adaptation Dye-Job: It's stated she has auburn hair in the books, but is a brunette in the graphic novel.
  • A Form You Are Comfortable With: Typically appears as a twelve-year-old girl, since most of the Hunters are around that age.
  • Age Lift: In the movie, she appears as a full-grown woman instead of the young-girl form she assumes in the book.
  • Animorphism: Possibly. When Artemis is fighting against Atlas she is seen taking different animal forms at great speed by Percy. He then admits that another possibility could be that the pain of holding the sky is making him hallucinate and “see things.”
  • Badass in Distress: During The Titan's Curse. Once she's freed, she gets to battle Atlas.
  • Berserk Button: Do not harm a maiden in front of her. To a lesser degree, Apollo flirting with her Hunters.
  • Cute Bruiser: At least in her preferred form.
  • Does Not Like Men: But doesn't exactly dislike them either, as shown when she praises Percy and supports keeping him alive. Her sphere just includes the protection of women and children; therefore, until a man proves himself, he's beneath her notice.
  • Dual Wielding: Wields two knives during her fight with Atlas.
  • Mama Bear: To her Hunters and maidens in general. Harm towards them isn't allowed when she's around.
  • Not Bad: At the end of the The Titan's Curse she tells Percy that he didn't do bad, for a man. At first Percy thought it was an insult but then he realized that it was the first time she actually called him a man instead of a boy.
  • Parental Substitute: To her Hunters.
  • Pintsized Powerhouse: She has the size and appearance of a twelve-year-old, but it doesn't stop her from kicking ass.
  • Polar Opposite Twins: Her and Apollo are extremely different in appearance and temperament.
  • Sibling Seniority Squabble: With Apollo. She's older. According to mythology, she helped deliver him as a baby. He cheerfully ignores this fact in favor of calling her "little sis" at every opportunity.
  • Straw Feminist: Subverted; Percy does note how ridiculously radical she and her hunters are, but Artemis is also a goddess and hero who can be profoundly wise and kind, and is not nearly as misandrist as Percy makes out at first. And, given the sheer number of times Artemis or her followers are outright assaulted in the myths by gods and nature spirits who view their unavailability as a challenge (even her own father Zeus raped her nymphs), she's kind of entitled to a bit of wariness.
  • Team Mom: To the Hunters; shares the role with Zoe, though she's more at ease and welcoming than her lieutenant.
  • Token Mini-Moe: Her preferred form, as it's the same age as many of her Hunters.


The god of the sun, poetry, prophecy, and medicine, and Artemis's older twin brother (but don't bring that up). He speaks through the Oracle of Delphi.

Played by Dimitri Lekkos in the film series.

  • Big Brother Instinct: He has a bit of this for Artemis, considering how he defied Zeus's orders to give advice to Percy and his friends on how to save her.
  • Combat Medic: Healing is part of his domain, but he's also a competent fighter.
  • Cool Car: He likes the sun chariot in the form of a sports car. And he lets fifteen-year-old girls take it for a spin.
  • Hot God: This applies to most of the gods, but special emphasis is given to Apollo (and Aphrodite, but that's a given).
    Thalia: Wow. Apollo is hot.
    Percy: He's the sun god.
    Thalia: That's not what I meant.
  • Polar Opposite Twins: He and Artemis are extremely different in appearance and temperament.
  • Real Men Wear Pink: Parodied. His being the god of poetry is Played for Laughs, with him spouting haikus at the best of times.
    Apollo: Green grass breaks through snow,
    Artemis pleads for my help,
    I am so cool.
    • When Artemis points out that the last line is only four syllables, he changes it to: "I am so awesome."
  • The Power of the Sun: God of the sun, natch.
  • Sibling Seniority Squabble: With Artemis.


The goddess of wisdom. A perpetual maiden, her "children" are born from a quite literal meeting of minds between herself and a mortal.

Played by Melina Kankaredes in the film.

  • Action Mom: For Annabeth.
  • Foil: To Ares. They're both war gods, but Athena prefers tactics and strategy while Ares prefers brute force.
  • Gray Eyes: Quite famously.
  • Genius Bruiser: She is the goddess of both wisdom and battle strategy, and in classical mythology is one of more powerful gods, next to Zeus and Poseidon. Percy himself points out that Athena would be a worse enemy to have than even Dionysus or Ares, because if she planned to have you killed, then you would die. No matter what.
  • If You Ever Do Anything to Hurt Her...: Invoked by Athena towards Percy in regards to his friendship with Annabeth. As stated above, Athena would be the worst enemy to have amongst the gods. If she wanted you dead, then you would be dead, no matter how hard you would try to evade her.
  • Lady of War: One of the oldest ones in the book, she's calm and solemn but also very capable of kicking your ass.
  • Overprotective Mom: Well, as "overprotective" as any of the absentee parent gods can get, anyway, but she's shown not to particularly like the idea of Percy being with her daughter.
  • The Smart Guy: Among the Olympians.
  • The Strategist: Tactical warfare is part of her domain, so she fulfills this role among the Olympians.


Goddess of the harvest and Persephone's mother.

  • Demoted to Extra: From the original mythology, at least; she only gets an appearance in the winter solstice in the first book, a scene with her daughter and Hades in The Last Olympian, and a few appearances in battle.
  • Green Thumb: Plants are part of her domain. In the last book she turns an entire army into a wheat field.
  • My Beloved Smother: To Persephone.
  • Obnoxious In-Laws: Manages to be this to her brother Hades regarding him and Persephone, criticizing Hades' work and wishing Persephone could have married someone with a more respectable domain.
    • Jewish Mother: Though obviously not literally, the sheer speed in which she cranks out complaints about her daughter and brother-in-law's lives has shades of this.


The god of wine, parties, and insanity. He's being "punished" by being assigned as the head of Camp Half-Blood for 100 years after chasing after an off-limits nymph, and is grouchy due to being put off the bottle and thus can't drink until his punishment is over. Has an extremely strong dislike of heroes. Known as "Mr. D" to the campers.

Played by Luke Camilleri in the film adaptation of The Lightning Thief, and Stanley Tucci in The Sea of Monsters.

  • Accidental Misnaming: Mr. D staunchly refuses to get any of the campers' names right. Just ask Peter Johnson.
  • The Alcoholic: Although he's forbidden to touch anything wine-related for the next century, much to his annoyance.
  • Big Damn Heroes: In The Titan's Curse, saving Percy, Thalia, Zoë, and Grover from Dr. Thorn and his soldiers.
  • Demoted to Extra: In the film series, his punishment doesn't seem to be in effect, and as such Chiron seems to be camp director instead of him. He only has a cameo appearance at the Olympian council.
  • Freudian Excuse: A non-villainous example. The reason he dislikes demigod heroes is because his wife Ariadne were abandoned by the demigod Theseus. Probably not helped by the fact that he's The Alcoholic forbidden from touching anything even remotely wine- or alcohol-related, thus going through withdrawal. (For more information on his backstory, be referred to Percy Jackson's Greek Gods.)
  • Jerk with a Heart of Gold: Often comes across as mean and uncaring, but he genuinely cares about the protagonists and comes to their aid in one crucial moment.
  • Mind Rape: His signature move, being the god of insanity. He does say that the insanity he put on Thorn's soldiers was temporary, but it is scary.
  • Not So Different: He rather explicitly expresses his disdain of mortal tendencies to speak ill of his fellow gods for their behavior when mortals have plenty of their own bad apples.
  • Papa Wolf: Minor example, but he contacts Percy in a dream to make sure his one remaining son is safe.
  • Pet the Dog: Restoring Chris Rodriguez' sanity in The Battle of the Labyrinth.
  • The Other Darrin: Played by Luke Camilleri in the first film and Stanley Tucci in the second. Justified in-universe due to all the gods being able to change their appearance.
  • You Are What You Hate: He was himself a demigod hero, since his mother was mortal, despite hating them.


The god of the underworld. Bitter and asocial, but not truly evil.

Played by Steve Coogan in the film series.

  • Animal Motifs: He is described as been similar to a panther: lithe, graceful and dangerous.
  • Authority Equals Asskicking: In “The Lighting Thief” upon Percy’s meeting with Hades he states that Hades, above Ares and Dionysus, radiated power and that he had an air of order and lordship. The Asskicking part is seen in his Big Damn Heroes moment in “The Last Olympian”
  • Big Bad: Subverted; He is set up as this for most of the first book, but it's eventually revealed he actually had nothing to do with the theft of the lightning bolt; In fact, he is hilariously pissed about people believing he would want a new war.
  • Big Damn Heroes: The end of The Last Olympian
  • Calling the Old Man Out: "And if there's one thing we can agree on, it's that you were a TERRIBLE father."
  • The Chains of Commanding: The main reason he's annoyed by the fact that people believe he would want to steal Zeus's lightning bolt and start a war with it. The underworld is so big he already has enough trouble running it. Why in the world would he ever want to make his kingdom even bigger?
  • Cool Helmet: His personal artifact, similar to Poseidon's trident and Zeus' Lightning. It allows him to become obscurity itself.
  • Creepy Good: Scares the hell out of his family, but he's on their side when shit hits the fan.
  • Dark Is Not Evil: Though everybody is convinced he is.
  • Eerie Pale-Skinned Brunette: Pale and dark-haired, befitting the god of the Underworld.
  • Everybody Hates Hades: Even though he didn't do anything to deserve it. Although this gets better in the end.
  • Good Is Not Nice: The reason he has such a spotty reputation. He can be very harsh with his children if they disappoint him, and is so proud that he won't help save the world over an old grudge. This is par the course for gods, but he's also very brooding and abrasive.
  • Happily Married: To Persephone, more or less.
  • I Gave My Word: The only one of the Big Three to take the vow of no children seriously. Or at least more serious than the other two. Zeus being Zeus will screw anything at the drop of a hat, and Poseidon hinted at having many more children than just Percy (Tyson as a case in point). Hades' last set of children were born in the 1920s and his lover got nuked because of it. He had no children since. A smaller example occurs at the end of The Lightning Thief, when, after Percy gets him his Helm of Invisibility back as he promised he would, he promptly takes Sally back to her home- as Poseidon states, the Lord of the Dead knows how to honour his debts.
  • Not So Stoic: Around his family.
  • Orcus on His Throne: How Percy, Annabeth and Grover find him in “The Lighting Thief.”
  • Papa Wolf: Hades, it seems, is willing to go to much further lengths to protect his children than his brothers, including visiting them in person. Plus, it's stated that Nico lives in the Underworld with him.
  • Parental Favoritism: Hades makes it quite clear that he'd rather have Bianca alive instead of Nico, though it's probably because of Bianca's resemblance to their mother.
  • Simple Staff: Acording to Nico, its his Weapon of Choice.


The god of fire, blacksmiths, metallurgy, and technology.

Played by Conrad Coates in the film series.

  • Gadgeteer Genius: Dreams up fantastic bits of tech for the gods. According to Aphrodite, he also uses his skill with technology to keep humiliating her and Ares.
  • The Grotesque: On special occasions he'll spruce himself up, so that he looks merely "normal" ugly.
  • The Engineer: Frequently seen working away at his forge, coming up with new weapons and the like.
  • Not Good with People
    Hephaestus: People are more difficult to work with than machines. And when you break a person, he can’t be fixed.
    Hephaestus: Was that sarcasm? Machines don't use sarcasm.
  • The Unfavorite: His mother pitched him off a mountain for being ugly. He's still a wee smidgen bitter.


The goddess of women and marriage. She is quite possibly one of the three gods who have never had a demigod child (the other two being Artemis and Hestia).

Played by Erica Cerra in the film series.

  • Bitch in Sheep's Clothing: Acts pleasant, but has a particularly nasty side when she doesn't get her way.
  • Clingy Jealous Girl: To Zeus.
  • Dysfunctional Family: Tries to hide the fact that she's the matriarch of one, but it doesn't really work.
  • Knight Templar: For the "perfect family" ideal. Unfortunately for the goddess of marriage, she's stuck with an infamously philandering husband.
  • Parental Favoritism: She flung Hephaestus off of Olympus for having the audacity to be born less than beautiful, and makes it painfully obvious that she dislikes those demigods born to already-married gods and goddesses.
  • Stepford Smiler: She's pleasant and charming, but this crumbles pretty fast. Although being the matriarch of a Big Screwed-Up Family will do that to you.
  • Wicked Stepmother: Displays this the most out of the Big Three's wives, as she's the goddess of marriage and her husband's demigod children are an attack upon her domain. This is the reason she and Thalia don't get on.
  • Yandere: For Zeus. She particularly dislikes Thalia because she's the result of Zeus's infidelity.


The god of messengers, travelers, and thieves. As such, he's always extremely busy.

Played by Dylan Neal in the film adaptation of The Lightning Thief and Nathan Fillion in The Sea of Monsters.


The goddess of the hearth. She's often overlooked by the other characters, often quite literally.

  • Ascended Extra: Plays a far more important role in The Last Olympian than she does in the original mythology.
  • Demoted to Extra: In the original mythology, and of course as part of her past in the books. She seems to have happily embraced the option.
  • Chekhov's Gunman: The little girl tending the hearth as Percy tours the camp for the first time in The Lightning Thief appears four books later as Hestia, goddess of the hearth and the titular last Olympian.
  • The Heart: Fulfills this role for the Olympians.
  • Keep the Home Fires Burning: Effectively her purpose in life, as she stands watch over Olympus while the other gods are off fighting. She even says the trope name in a discussion with Percy and Nico.
  • Nice Girl: She's probably the kindest and most down-to-earth Olympian.
  • Non-Action Girl: Because her main role is to Keep the Home Fires Burning, she doesn't see much, if any, combat.
  • Older Than They Look: Hestia in particular takes this trope out of all the gods, because she takes the form of a seven or eight-year old girl.


The lost god of the wild, believed to have been dead for two thousand years.

  • Death Seeker: Wanted to fade because of the decline in the wild places of the earth, and let the world believe he was dead so he would fade faster, but since the satyrs believed in him, he couldn't fade yet.
  • Green Thumb: Nature is part of his domain.
  • He's Just Hiding: In-universe, Grover does not believe Pan dead and his main motivation throughout the series is to gain a Seeker's license so he can find Pan.
  • Magic Music: Music played on his reed pipes can make plants grow.


Goddess of springtime, Demeter's daughter, and Queen of the Underworld. Married to Hades.

Played by Rosario Dawson in The Lightning Thief

  • Clingy Jealous Girl: A milder example than Hera, but she doesn't like it when Maria di Angelo is brought up. note .
  • Dishing Out Dirt: Splits open the earth in The Demigod Files.
  • Happily Married: To Hades, more or less. Certainly so by Greek standards.
  • Lady Macbeth: Goes behind Hades' back to try and ensure he's just as powerful as Zeus and Poseidon. One of the reasons Nico decides to spend more time in the Underworld is so that he can counteract Persephone's influence.
  • Noodle Incident: In The Demigod Files:
    Persephone: We just had a little family spat.
    Nico: Family spat? You turned me into a dandelion!
  • Raven Hair, Ivory Skin: Described as such during her time in the Underworld.
  • Wicked Stepmother: To Nico with whom she has a very strained relationship. She apparently turned him into a dandelion at one point.
  • Woman in White: While in the Underworld and Hades's queen; she wears a washed-out white dress. When she's out of it, her attire is very colorful.


The god of the oceans, storms, earthquakes and horses. Poseidon is shown to take greater care of his children than other gods and is more mature than his brother Zeus.

Played by Kevin Mc Kidd in the film series.

  • Doting Parent: As doting as an absentee god parent can be, anyway. But he's especially this for Percy in comparison to some of the other gods, especially Zeus and Hades.
  • Father Neptune: The Greek equivalent of the Trope Namer. Especially apparent while fighting against Oceanus in The Last Olympian.
  • Immortal Immaturity: Averted. In ancient times he was very similar to Zeus in temperament. He would often hold grudges and be highly vindictive when things did not go his way. In the series he comes across as having matured to a degree where he is much more reasonable, at least compare to his brother.
  • Making a Splash: God of seas and oceans, natch.
  • Prongs of Poseidon: The Trope Namer.


Lord of Olympus and god of storms, justice, and oaths. The last two being ironic considering his actions throughout the series.

Played by Sean Bean in the film series.

  • Badass in a Nice Suit: The king of Olympus, fought against the Titans in his youth, and personally lead the Olympians into battle against Typhon, and is shown wearing dark, pinstriped suits.
  • Bolt of Divine Retribution: Quite literally. His symbol of power is the "master bolt." The first lightning bolt and most powerful weapon in the series. It winds up being the MacGuffin for The Lightning Thief.
  • Head Inthe Sand Management: At first, the refuses to allow discussion on the rising threat of the Titans over the protests of the other gods until Artemis forces him to confront irrefutable evidence. In The Heroes of Olympus, he does the same with the threat of the rising giants refusing to take action once again over the protests of the other gods.
  • Hypocrite: Zeus tears into Poseidon for breaking his oath and calls Percy's birth a crime. Yet he broke the oath first after being the one to force it on his brothers. No one bothers to mention it since he just got his lighting bolt back and in his next sentence he is clearly just all talk as he says he should have killed Percy on the plane when he well knew the master bolt was with him and everyone knows he would never have risked destroying that.
    • He sent Dionysus to Camp Half-blood for a century and forbade him to get into contact with anything wine-related. Why? because Dionysus was after a nymph that was declared out of bounds... the exact behaviour that is almost daily routine for Zeus.
  • Immortal Immaturity: In ancient times, Zeus and Poseidon had almost interchangeable personalities. By modern day, Poseidon has matured to a degree, so he tends to be more reasonable. Zeus has not and still comes across as a pompous git who thinks he is perfect.
  • Inferiority Superiority Complex: One interpretation of his behavior. He quarrels with Poseidon over who their mother Rhea likes better, is paranoid Poseidon is constantly plotting against him, demands respect when no one respects him, closes off of Olympus due to wounded pride, and tries to blame others for his mistakes. He massive ego and demand people respect and obey him comes across as at least partially trying to cover up his own mistakes and knowledge he is a failure that no one likes.
  • I Reject Your Reality: Zeus tries to deny the return of the Titans until he is presented with irrefutable evidence but by then it is too late to do anything. He denies the return of the Giants as well and that the Olympians need demigod help to stop them. Hera states in The Heroes of Olympus that Zeus has a long history of this thanks to his pride.
  • Jerkass: All the gods are this to a degree, but Zeus stands out compared to the others.
  • Informed Attribute: Zeus supposedly has a charming, fun side that attracts ladies, a more fatherly side that cares for his children, a better king than he once was, and some sort of wisdom that helps him rule the god. All we seen and truly hear about is an arrogant, short-tempered, judgmental jerk that is willing to send his children and lovers up the creek for his own benefit, a terrible king, and no wisdom at all. In the second book series, things fall apart the moment Hera isn't around to keep the peace.
    • The charming and fun side are shown more clearly in Percy Jackson's Greek Gods, which is a feat given his and Percy's history, as is at times his more caring side, such as him planning for Hercules to be high king before he was born or the origin of the Myrmidones. And though he is petty, hypocritical, proud and stubborn, what we see of him in the books (which are short in comparison to an immortal's life, admittedly) as a king, show at least a tiny improvement from the person who levelled a whole city for their king cosplaying as the King of the Gods and who hung his own wife over a chasm and threatened to let her fall into the pit of Chaos for days if not weeks.
  • Karma Houdini: Despite breaking a sacred oath and pulling a ton of other crap Zeus is never held accountable for his actions. Instead his children often have to pay for his crimes and mistakes. Being the most powerful god around has its perks.
  • King of the Gods: Trope Codifier.
  • The Oath-Breaker: Came up with the idea to have no more demigod children and forced the oath upon his brothers for the sake of Olympus. A few decades later, was the first to break the oath and later forced the consequences upon his child.
  • Parental Neglect: Among his many JerkAss qualities Zeus neglected to have a proper cabin built for his children which ironically makes him one step more of a neglectful parent than other gods who at least built actual cabins for their kids. Instead of a place where a person can live and sleep, Zeus' cabin is a temple dedicated to him. Children of Zeus have to move eagle statues out of the way to sleep in alcoves with a statue of Zeus staring down at them.
  • Pet the Dog: About Zeus's only redeeming quality is he occasionally will help his children such as turning Thalia into a pine tree to save her from the wrath of Hades and using it to put a barrier around camp to finally make it safe. Whether this in any way makes up for being a crappy parent or being turned into a pine tree is a "good" thing is debatable.
  • Pride: His defining characteristic and source of many of the problems throughout both series.
  • Shock and Awe: Being god of the sky gives him lightning powers. His Weapon of Choice is even a Bolt of Divine Retribution.
  • Ungrateful Bastard: At the end of the first book, Zeus can not cough up a thank you to Percy and threatens to kill him if he travels in the sky again. At the end of the first series, he can barely eke out a thank you to Hades and Poseidon, agree to Percy's requests, and fails to fulfill all of them. At the end of the second series, Zeus says he is proud of Jason, yet the moment Jason questions Zeus (when Zeus is wrong) Zeus is one step away from killing his own son.



The King of the Titans and suitably the most powerful. He has domain over time and harvest.

  • Abusive Parents: He literally ate his children as soon as they were born because it was foretold that he was destined to be overcome by his own sons.
  • And I Must Scream: He literally cannot die. The first time, he was chopped into bits and pitched into Tartarus. The second time, his consciousness exploded and was spread so thinly across the world that there's little hope of it reassembling.
  • Archnemesis Dad: To many of the Olympians.
  • Asskicking Equals Authority: Became King of the Titans through being the most powerful, being the one who killed his father in the original mythology.
  • Batman Gambit: Allowing the Fleece to be returned to Camp Half-Blood so Thalia could be brought back to life, and he could count on her Fatal Flaw to sway her to his side so he could have a chance to control the Great Prophecy. It fails.
  • Big Bad: Of the entire series. His goal is to be resurrected, and the demigods and gods have to stop him because it would mean the fall of civilization.
  • Big "NO!": Lets one lose when he's finally defeated.
  • The Chessmaster: Manipulates people and events to further his goal of reforming and taking over the world.
  • Eldritch Abomination: Described as such.
  • Sadistic Choice: In the fifth book, Kronos frequently threatens to kill Percy's friends unless he surrenders to him.
  • Sealed Evil in a Can: Initially, his remains are just in a particularly creepy sarcophagus that gets stronger every time a demigod forsakes the Olympians and joins his side. Later, Luke graduates to being his Soul Jar.
  • Sinister Scythe: His Weapon of Choice.
  • Time Master: Kronos seems particularly fond of slowing time around his opponents to a near stop.
  • We Can Rule Together: Offers this a bunch of times. Most of them are insincere.
  • You Have Failed Me: Kronos decides to let Atlas rot due to his repeated failures.


The Titan of Light.


The Titan of Strength, nephew of Kronos, and father of the Hesperides and Calypso. For his role in the first Titanomachy, he was charged with holding up the sky.


The Titan of Stars and Constellations.


Titan of craftiness and forethought. Sided with the Olympians in the first war, but out of a desire for revenge on Zeus and thinking the Olympians cannot win switches sides to the Titans.

  • Affably Evil: If one can call him evil.
  • I Fight for the Strongest Side: He's foreseen that the Titan's will win the war and this is why he's on their side.
  • If My Calculations Are Correct: Implied that part of his foreknowledge is his ability to calculate probability to predict the most likely outcome.
  • Revenge Before Reason: One possible interpretation of his defection.
  • Satan Is Good: In a sense. He is referred to once as "the good Titan" for the aid he has given to mankind with fire and curiosity in defiance of Zeus.
  • The Smart Guy: Among the Titans who appear, he's the most intelligent and predicts the Olympians' loss this time.


Titan of mortal life, brother of Kronos, and father of Prometheus. He appears only in The Demigod Files and in House of Hades.

Other Titans

There are considerably more Titans than are mentioned in the main series, but a lot of them get expounded upon, by none other than Percy himself, in Percy Jackson's Greek Gods. Since their day was before the rise of the Olympian gods, many of them have since faded into the background, with a few exceptions.

  • Attention Deficit... Ooh, Shiny!: Theia, the Titan of gems and jewels. Percy thinks this is why she married Hyperion
  • Being Good Sucks: In addition to Prometheus up there, special mention goes to Rhea. Percy uses language similar to describing his own mother, in that she had the nicest sweetest personality of out of the Titans, which meant she got the worst luck, such as having Kronos fall for her and having him swallow her children.
  • Birds of a Feather: Tethys (rivers and streams) who marries Oceanus (the ocean). "Hey you like water? I like water too! We should totally go out!"
  • The Casanova: Helios, apparently. He has a tendency to frequent local watering holes to try and impress women.
  • The Ditz: Theia is, not too bright. Which is ironic considering she is the Titan of bright and shiny things.
  • Fortune Teller: Percy describes Phoebe rather like one.
  • Happily Married: Tethys and Oceanus, whom Hera tried to model her own marriage after.
  • Hot God: Several of them, but Rhea stands out again.
  • Photographic Memory: Mnemosyne, who remembers everything.
  • The Pollyanna: Phoebe. Name means "Bright" which was how she tried to see the world.
  • Psychic Static: Zeus first married Metis, Titan of deep thought... and then swallowed her because he feared their children would overthrow him. Metis eventually dissolved into pure, occasionally annoying thoughts in Zeus' mind.
  • Titans Need Prayer Badly: It's brought up several times that Helios and Selene, Titans of the Sun and Moon, faded away entirely after the Romans reassigned their domains to Apollo and Artemis.

    Other Characters 

Zoe Nightshade

A huntress of the goddess Artemis and her former lieutenant. One of Atlas's daughters, who was disowned by her family after helping Hercules steal from their apple tree. She is replaced by Thalia Grace after her death and turned into a constellation called "The Huntress" by Artemis.

  • Action Girl: Artemis's second-in-command, and thus good in battle.
  • Aloof Dark-Haired Girl: Cold and distant to anyone who isn't Artemis or a Hunter.
  • Ambiguously Brown: Is described as having "olive" or "caramel-colored" skin, black hair, and dark eyes; but her ethnicity isn't elaborated on beyond that. It's been suggested that in the original mythology, the Garden of the Hesperides (and thus Zoe's home) was located in what is now Libya.
  • Antagonistic Offspring: To Atlas.
  • Archer Archetype: Fits this trope better than Thalia initially, being aloof and somewhat cold, as well as an excellent shot with a bow and arrow.
  • The Atoner: There are hints of this in her desperation to rescue Artemis, even at the cost of her own life. She's seen clearly wanting to go with Artemis on her quest and later utterly frantic when she has a vision of Artemis' kidnapping; some of her determination to rescue her goddess can be interpreted as feeling guilty that she failed to protect her.
  • Big Sister Mentor: Towards Bianca. It's implied that she wanted to groom Bianca to take up the lieutenant title someday.
  • The Comically Serious: Often put in hilarious situations that highly contrast with her serious persona.
  • Cool Big Sis: To the Hunters of Artemis. Given how protective she is of them, this likely overlaps with Mama Bear tendencies.
  • Defrosting Ice Queen: A non-romantic version towards Percy and Thalia over the course of The Titan's Curse.
  • Died in Your Arms Tonight: To Artemis, who tried and failed to save her.
  • Does Not Like Men: But is perfectly capable of liking and befriending them, once they earn more than the barest token respect.
  • I Have No Daughter: Her family pulled this on her for helping Hercules steal from their apple tree.
  • Jerk with a Heart of Gold: In her debut, she comes off as snobby, aloof, and hostile, particularly to Percy. However, over the quest, she starts showing a more caring side, and becomes more sympathetic once her backstory is revealed.
  • The Lancer: To Artemis.
  • The Leader: Of the group sent to rescue Artemis in The Titan's Curse.
  • Noodle Incident: After two-thousand-plus years, she and Artemis have a lot of them. And they reminisce at the drop of a hat.
    "The last boy to see this camp... when was it, Zoe?"
    "That boy in Colorado. You turned him into a jackalope."
    "Ah, yes. I enjoy making jackalopes."
    • Apparently the last time the Hunters were at Camp Half-Blood, it burned down. Zoe blames the half-bloods.
    • Apollo's poetry phases have apparently been going on for thousands of years. Poor, poor Zoe.
    "'Tis not as bad as the time he visited Limerick. If I'd had to hear one more poem that started with 'There once was a goddess from Sparta'..."
  • Not So Stoic: Very cold and professional, but it's strongly implied she only acts that way because she's not comfortable around half-bloods; we see signs of Zoe having a very active sense of humor and warmth as she relaxes around the quest group, and it's likely that when she's around just the Hunters, that side of her is much more prominent.
  • Number Two: For Artemis, as her lieutenant.
  • Secretly Dying: Knew from the start that going on the quest was a death sentence for her, but went anyway out of loyalty to her beloved Artemis. During the climax, she's also suffering from poison from Ladon.
  • Stars Are Souls: She's turned into a constellation, "The Huntress", after she dies.
  • The Stoic: While it's primarily a facade and Zoe appears to be a genuinely loving person when around people she trusts, this is still definitely a huge part of her personality.
    Percy: ...She's kidding, right?
    Artemis: Zoe rarely kids about anything.
  • Straw Feminist: At first appears to be this, but is justified/deconstructed when Riordan reveals a Freudian Excuse for her hating males, and eventually portrays her beliefs in a less radical and ludicrous style. It's not that she hates men, she just doesn't trust heroes because too many of them have betrayed her or turned on the Hunters in the past.
    • Possibly even justified, as it's revealed later in the series that heroes share a fatal flaw of being prone to self-centeredness and letting the people who help them fall by the wayside. She's seen that pattern repeat for thousands of years; no wonder she's a little jaded.
  • Sugar and Ice Personality: More ice than sugar, but mostly because we see her from Percy's perspective. With the Hunters, she's like a second mother and is a patient sisterly figure towards Bianca. Her loyalty and devotion to Artemis are unyielding, and she comes to respect Thalia and Percy over the course of their quest.
  • Undying Loyalty: To Artemis, so much that she went on a quest she knew would kill her just to save her. The first words out of her mouth when the Oracle faces her are "What must I do to save my goddess?"
    • She's so obviously a moment away from willingly shouldering an eternal burden that would kill any non-immortal who attempted it, solely because she can't bear to see her goddess in pain, that she has to be given a direct order not to do so. What's more, it's implied that, at that point, Artemis couldn't actually see her face. They just know each other that well.
    Atlas: Perhaps you would like to take it for her, then? Be my guest.
    Artemis: No! Do not offer, Zoe! I forbid you.


A sorceress who rules a island where she turns men into pigs.


Atlas's daughter, who lives in exile on the island of Ogygia. She looks after Percy when he washes up onto her island, and gives him moonlace before he leaves.

  • Adaptational Heroism: She's much kinder than she is in the original mythology, where she's a seductress who kept Odysseus prisoner for years.
  • And I Must Scream: Has been trapped on a island for 5,000 years with no company. Percy's one of the few visitors she's ever had.
  • I Lied: Has this inflicted on her between the first and second series, since no one has freed her even though Percy ordered her release.
  • Mad Scientist's Beautiful Daughter: She's the daughter of Atlas and supported her father in the first war, which is why she's in exile on an island in the first place.
  • Misunderstood Loner with a Heart of Gold: Is kind-hearted and empathetic despite the lack of company.
  • Nice Girl: Is depicted as genuinely caring and kind, despite her awful punishment. The sequel series plays around with this set-up, elaborated on over there.
  • Really 700 Years Old: She appears to be fifteen or sixteen, although she's been around for millenia.
  • Unrequited Tragic Maiden: A variation. She's doomed to always fall in love with the hero who washes up on her island, but never have her affections returned. In a particularly cruel twist, the heroes cannot leave Ogygia until she falls for them.
  • What Could Have Been: In-universe. After turning down her offer to stay with her on the island, Percy wonders what would have happened if he'd accepted it. His narration even calls her his biggest what-if.
  • Woman in White: Mysterious, beautiful, and wears a sleeveless white Greek dress.


Son of Athena and inventor of the Labyrinth. He's also Quintus, a temporary swordsman trainer at Camp Half-Blood.
  • Actually, I Am Him: Pulls this near the end of Battle of the Labyrinth when revealing that he and Quintus are the same person.
  • The Aloner: Is a rather lonely person in general, and claims to work only for himself.
  • Body Jump: He's put his consciousness into automatons several times.
  • Dirty Coward: Tends to run and hide from his problems rather than face them.
  • Heroic Sacrifice: Dies to get the Labyrinth, which is tied to his life force, to collapse, and save Camp Half-Blood.
  • Meaningful Name: Quintus means "fifth" in Latin, and it's the name for his fifth body.
  • The Smart Guy: A master inventor and a genius of his time.
  • What the Hell, Hero?:
    • Athena pulls this on him when he tricks Perdix into falling off a balcony. To be specific, she turns Perdix into a partridge and then brands him with a mark of said partridge, which would never fade.
    • Annabeth tells him that Athena's children are supposed to be wise, not just clever. He realizes she's right, leading to his Heroic Sacrifice and his entrusting of his laptop to her.


A child of Gaia and Tartarus. He was created to avenge the defeat of the Titans, but was defeated and imprisoned in Tartarus. Released in modern times by Percy on accident. He once again tries to destroy the gods and serves as a distraction for Kronos.

  • The Dreaded: Feared by the Olympians more than any other threat.
  • Eldritch Abomination: More so than anyone else. His body is constantly shifting between every type of monster and new ones and looking at him for too long would drive a demigod insane.
  • Father Of A Thousand Young: Fathered nearly all of the major monsters.
  • The Juggernaut: Took the combined might of most of the major Olympians battling him for weeks and the last minute arrival of Poseidon and his own army to bring him down. When he first showed up to battle the Olympians in ancient times, ever god except Zeus ran at the sight of him.
  • Laser-Guided Tykebomb: Created to avenge the Titans' defeat and bring down the Olympians.