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Characters / The Camp Half-Blood Series: Servants of the Gods

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Over the millennia, the gods have employed a great many servants, from monsters and automata to spirits and mortals. For the full list of characters, click here.

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Hunters of Artemis

Mortals, demigods, nymphs, or other young women sworn to Artemis. They join the goddess on her hunts and are blessed with agelessness and divine hunting prowess so long as they remain perpetual maidens. They are currently led by Thalia Grace.

  • Action Girl: They're called "The Hunters" for a reason and they're all girls.
  • The Ageless: They appear as young as they did when they took the oath, and are immortal, but can still suffer lethal injuries.
  • Amazon Brigade: All-female and all-badass. The Blood of Olympus sees a team-up between them and the other Amazon Brigade of the series, the Amazons.
  • Attention Deficit... Ooh, Shiny!: Many are demigods and suffer from this as a result.
  • The Beautiful Elite: Treated as such by satyrs.
  • The Bully: They often get in fight the campers of "Camp Half-Blood".
  • Celibate Hero: As revealed in The Dark Prophecy, it turns out that it isn't just men that they have to swear off. All romantic relationships are considered off-limits, including relationships between Hunters (which is what prompted Emmie and Jo to leave). That being said, in the event that a Hunter does end up falling in love, and hasn't done anything to warrant Artemis being pissed off at them, they're allowed to leave peacefully, though at the cost of their immortality.
  • Child Soldiers: Most of them are between the ages of 12 and 16.
  • Color Motif: Silver, like Artemis' moon. They have silver arrows, wear silver ski parkas, use silver flags when playing Capture the Flag, and their leader wears a silver circlet.
  • Does Not Like Men: Forsworn to forsake men forever. Most of them actively avoid interaction for fear of losing their divine sponsorship. To the point of being sexist.
  • Great White Hunter: Blessed with divine ranged capabilities and Improbable Aiming Skills. Although the game they hunt is often mythical in nature.
  • Heroic Bastards: Many are demigods and as such are this.
  • Human Mom, Non-Human Dad: If they're a demigod.
  • Improbable Aiming Skills: From the blessing of Artemis. They can shoot with even more accuracy than Apollo's demigod children.
  • "L" Is for "Dyslexia": Only if they're a demigod.
  • Noodle Incident: Apparently, their last visit to Camp-Half Blood before The Titan's Curse ended with them burning the cabins down.
  • Pals with Jesus: They hunt with Artemis, the goddess of the moon.
  • Power Glows: Said to have a silver aura.
  • Really 700 Years Old: The more senior members have been around for years and years and don't look out of their teens. Phoebe in particular is mentioned to have been there during the first fiasco with Orion, three or four thousand years ago.
  • The Straight and Arrow Path: They use traditional hunting gear (e.g. bows and arrows) in a story set in the 2010s.

    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 Nonhuman Dad: Maria di Angelo and Hades.
  • It's All My Fault: This was why she wouldn't let Percy sacrifice his life for hers, since she activated the automation. Her ghost admits this when she finally talks with Nico, telling him that Percy wasn't to blame for her death, it was all on her. What's more, she tells Nico that he's really angry at her for abandoning him and he shouldn't deny that.
  • Knife Nut: When low on arrows, she takes to using a dagger against the undead soldiers and manages to take out one.
  • More Expendable Than You: When Percy prepares to enter the automaton to shut it off, she insists on doing it instead.
  • 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 Job Breaking It, Hero!: She joined the Hunters as soon as she thought Nico would be safe at camp, without even talking it over with her brother. This led to Nico to ask Percy to follow Bianca and make sure she was safe, and to Bianca stealing an action figure from the junkyard out of guilt over abandoning Nico. This led to her death because she refused to let Percy sacrifice his life for hers. Also this then led to Minos tempting Nico to resurrect her and get revenge on Percy, because Bianca didn't have that long-overdue talk and hid her ghost from her little brother.
  • 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.
  • No Good Deed Goes Unpunished: She nearly gets the Artemis hunting party killed because she stole an action figure from Hephaeustus' junkyard as an Apology Gift for her brother.
  • Poor Communication Kills: She decided to join the Hunters without talking to Nico about it, and then after she dies, she refused to appear to her brother because she thought he would move on if he failed to revive her. Nico took the time to blame Percy for her death because he accidentally broke his promise to keep her safe. She does realize she messed up, fortunately, and finally appears. Nico tells her bluntly that he never would have given up on her, and it's their conversation that allows him to move on.
  • Posthumous Character: She died in the third book of the previous series, but her death still affects Nico and his relationships.
  • 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.
  • Sacrificial Lion: She's the first character to get Killed Off for Real.
  • 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.

The best tracker and healer in "The Hunters of Artemis".

  • Informed Ability: Tracking and healing.
  • Mauve Shirt: Supporting Hunter since the first series and mentioned as the best tracker and healer (likely due to her age), is unceremoniously offed by Orion's attack in The Blood of Olympus.
  • Nice Girl: But, only to other girls as seen by her interaction with Reyna.

    Thalia Grace 

Played by: Paloma Kwiatkowski, Katelyn Mager (young)

Daughter of Zeus and Beryl Grace, an eighties starlet. 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.

  • 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. Percy notes how it clashes with the rest of her punk-style clothing.
  • Celibate Hero: Well, Heroine: After she joins the Hunters, as they swear off men.
  • Dangerous 16th Birthday: Knowing that according to the Great Prophecy a demigod child of Zeus, Poseidon, or Hades might bring about great chaos, she defies this trope by joining the Hunters and remaining perpetually fifteen, 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 Nonhuman 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.
  • One Steve Limit: Averted; she shares her name with two of her half-siblings from the Muses and Charites.
  • 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.
  • Sibling Team: When she joins the Hunters, she becomes the lieutenant of Artemis, who is her half-sister through Zeus.
  • 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.
  • You Shall Not Pass!: In her backstory, Thalia held a horde of monsters off so Annabeth, Grover and Luke could reach Camp Half-Blood at the cost of her life. Zeus subsequently turned her into a pine tree.

    Reyna Avila Ramirez-Arellano 
Daughter of Bellona and a former praetor of Camp Jupiter. Her tropes can be found here.

    Zoe Nightshade
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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.
  • Cool Crown: A silver circlet braided into her hair, to represent her status as the leader of the Hunters. According to Percy, it makes her look like a Persian princess. It passes to Thalia after her death.
  • 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.
  • Fatal Flaw: Her jaded attitude towards men, even if they are siblings, and heroes. She convinces Bianca to leave behind Nico at Camp Half-Blood and join the Hunters, without even considering that it'd be healthier for Bianca and Nico to talk about it before making any serious decisions. This leads to Bianca getting killed, which in turn leads to Nico lashing out and learning he and Bianca were Hades's children. Then on the quest, she ends up dying for Artemis since she knew her family would murder her for helping Heracles.
  • 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.
  • Nice Job Breaking It, Hero!: Her convincing Bianca to join the Hunters and the quest backfires. Bianca feels guilt over leaving Nico behind without even talking with him about it, and ignores instructions to leave all the items in a junkyard alone, because she saw the rare action figure he wanted and was thinking of bringing it as an apology gift. When the defensive automaton goes after the team, Bianca sacrifices herself since she believes no one else should suffer for her mistake. Cue the party having one less fighter, Nico running away from Camp Half-Blood and working with Minos, and a whole slew of problems.
  • 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.


    The Oracle of Delphi 
The Oracle (real name unknown) that gave the first Great Prophecy. After the Great Prophecy she has been replaced by Rachel Dare. She lived at Camp Halfblood, so you can see her tropes here.

    Rachel Elizabeth Dare 
A mortal girl who is able to see through the mist and the current Oracle of Delphi. She lives at Camp Halfblood, so you can see her tropes here.


The Underworld

The various creatures and beings Hades employs in the Underworld.

  • Dark Is Not Evil: He employs a lot of monsters, many of whom have cruel streaks, but inevitably they're just doing their jobs.

The Titan of Mortality and Lord of the West, mind-wiped by the waters of the Lethe into becoming a janitor for Hades named Bob. He first appears in The Demigod Files, supplementary material of the original series. He appears in the main series in The House of Hades.

  • Almighty Janitor: Literally — he's a Titan, but doesn't remember this and works as a janitor for Hades instead.
  • Amnesiacs are Innocent: He acts very childlike and innocent.
  • Amnesiac Dissonance: When he remembers his past, however, he gets darker.
  • Anti-Villain: Implied to be this in some of Hyperion's dialogue. Granted, we don't actually get to see any of this during his debut, but then he seemed more happy to rise above his former self in The House of Hades.
  • Appropriated Appellation: "I am Bob. I choose to be more than Iapetus."
  • Because You Were Nice to Me: The reason he aids Percy and Annabeth. In reality, this was thanks to Nico's doing — he visited Bob in Hades and told him at one point that Percy was a friend.
  • Blade on a Stick: His name means "The Piercer", and as both Iapetus and Bob he wields one. It's a standard spear as Iapetus, but as Bob it's a broom with a retractable spear head at the handle end.
  • Chekhov's Gunman: He only appeared in a side story to the original series, but later became incredibly important in the The House of Hades.
  • Curb-Stomp Battle: Iapetus vs. Thalia, Nico, and Percy would have ended up as this if not for his Laser-Guided Amnesia.
  • Healing Hands: A rare villainous example (at least at first), after his Heel–Face Turn he easily heals Percy's injuries
  • Heel–Face Brainwashing: Due to his dip in the Lethe in The Sword of Hades, Bob's a lot nicer than your average Titan.
    • Heel–Face Turn: When he learns of his past as Iapetus, he initially experiences misgivings toward Percy, but ultimately decides to continue assisting them after Percy apologizes.
  • Heroic Sacrifice: Decides to side with the heroes at the end, sacrificing his life so they can get out of Tartarus. This weighs heavily on Percy and Annabeth.
  • Impaled with Extreme Prejudice: He was called "The Piercer" for a reason.
  • Jerkass: But only as Iapetus. Even then, given Hyperion's words about him being the only one who felt regret about aiding in Ouranos' dismemberment, it's likely he might have been an Anti-Villain.
  • Kindhearted Cat Lover: Adopts a skeletal kitten and names it "Small Bob."
  • Laser-Guided Amnesia: A fight with Percy, Thalia, and Nico ended with Iapetus getting Lethe river water splashed on his face.
  • Messy Hair: Described as Einstein-like.
  • Nice Guy: He's kind and helpful to Percy and Annabeth, at least when in his Bob persona. However, he stays nice after finding out about his past as Iapetus, choosing to put it behind him.
  • Strong Family Resemblance: Looks like a silver version of his brother Hyperion.
  • Token Good Teammate: Among his four brothers he seems to have been this as Iapetus, having been the only one who felt regret about betraying and dismembering their father Ouranos. As Bob, he's without a doubt this.

The three headed hound who guards the gates of the Underworld.

  • All Animals Are Dogs: A weird example. Despite appearances he definitely isn't a dog but he sure acts like one.
  • Animalistic Abomination: Sure he looks mostly like a dog, but he's the spawn of Echidna and Typhon.
  • Hellhound: He's a hound and he guards hell.
  • Multiple Head Case: Not obvious, given his lack of verbal capability, but his heads fight among themselves over a tennis ball.

The ferryman of the river Styx.

  • The Ferryman: Follow that link, see who the page image is.
  • In the Hood: When he's not wearing suits he wears the stereotypical hood and robes.
  • Obstructive Bureaucrat: He makes souls wait for years before he feels like taking them across to the underworld.
  • Only in It for the Money: May or may not be the source of his loyalty to Hades. At the least, he's always pushing for a raise and will accept hefty bribes.
  • Sharp-Dressed Man: He has a thing for Italian suits.
  • Skull for a Head: His true appearance, possibly with a matching skeletal body under those robes.

    The Furies 
A trio of vengeance spirits who serve as torturers, messengers, and enforcers for Hades.

  • Mook Lieutenant: Alecto seems to serve as the leader of the trio.
  • Names to Run Away from Really Fast: Besides being called the Furies, their names are Alecto, Megaera, and Tisiphone. If you know ancient Greek, or are a demigod with an autotranslate feature, that comes out to The Angry, The Grudging, and The Avenger.
  • Revenge: They are vengeance spirits, though their role is more justice than personal revenge.
  • Sadist: They like their jobs, no question about it.
  • Voluntary Shapeshifting: Using the Mist. Their preferred forms are lawyers, teachers, and other authority figures.
  • Whip It Good: Their primary weapons are flaming whips, as much for punishment as they are combat.
  • Winged Humanoid: Leathery bat wings.

    Judges of the Dead 
A group that judges the souls of mortals in particularly interesting cases. Three sit on the panel, rotated out from a larger pool.

The butlers, cooks, gardeners, guards, warriors, and holders of basically every other job in the underworld.

  • Animate Dead: There's about half a second of delay between Hades deciding he doesn't like you and an army of zombies clawing their way out of the ground.
  • Fearless Undead: They're basically robots made out of corpses.
  • Mundane Utility: Hades keeps legions of zombies around for housekeeping. Justified, as he rarely has need for an army.
  • The Needless: Naturally, as what use would servants be if they needed to take breaks for silly things like sleeping or eating.
  • Undead Laborers: Their general purpose.


Monsters get a bad rep for all the death they cause, but they're little more than tools. Those created by beings like Tartarus or Echidna tend to be vicious beasts, while those created by the gods... are about the same, but working for the gods.

  • Dark Is Not Evil: Being tools for the gods they don't really have enough freedom to be evil themselves.
  • Light Is Not Good: Likewise, being on the side of the gods doesn't make them nice either.


Played by: Douglas Smith
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.

  • 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.
  • Combo Platter Powers: As a Cyclops, he's immune to fire, resistant to poison, extremely skilled at crafting and engineering, and can change his voice at will to imitate anyone. As a son of Poseidon, he can breathe underwater. And he's also really good at Monopoly.
  • The Engineer: Becomes one after working in the Cyclops's forge.
  • Gadgeteer Genius: As a Cyclops, he has a natural inclination toward crafting and engineering, and he can make items that are both beautiful and functional. He created a shield for Percy that can collapse into a wristwatch, and bronze hippocampi to hang from the ceiling of their cabin.
  • Gentle Giant: Over six foot tall, but really childish and willing to get along.
  • Genius Ditz: He is apparently really good at Monopoly.
  • I Just Want to Have Friends: Before he met Percy, he grew up alone on the streets, learning how to make things out of scraps. He prayed to Poseidon for a friend, and...
  • Interspecies Romance: In The Heroes of Olympus, he has some Ship Tease with Ella the harpy.
  • Nice Guy: See Gentle Giant.
  • No-Sell: Being a Cyclops, he's completely immune to fire.
  • Scars Are Forever: He has a number of scars on his back that he got from being attacked by a Sphinx on 72nd Street.
  • Ship Tease: With Ella.
  • Super Not-Drowning Skills: As a Cyclops and a son of Poseidon, he can breathe perfectly fine underwater.
  • Super Toughness: Immune to fire and water, and resistant to poison.
  • Trademark Favorite Food: Peanut butter.
  • Voice Changeling: Doesn't use it much though since it's considered creepy.

    George and Martha 
The snakes on Hermes's caduceus.

  • Frickin' Laser Beams: The caduceus has a laser function.
  • Like an Old Married Couple: They bicker constantly. One of the supplementary stories reveals that they actually are married.
  • Mundane Utility: Played with. The caduceus is Hermes's only real weapon, as well as his phone, clipboard/pen, and every other assorted device one might need. As the messenger of the gods, the latter functions are actually more important than its combat abilities.
  • Servile Snarker: To Hermes.
  • Trademark Favorite Food: George really likes rats.
  • Voluntary Shapeshifting: The caduceus can take many forms and they have some control over it, though the user can still override them.

One eyed giants who serve as blacksmiths and forgeworkers for the gods. While the Elder Cyclopes are loyal servants, the majority of cyclopes we see are of the southern and hyperborean varieties, so their tropes can be found on the Monsters page.

    The Erymanthian Boar 
A titanic boar that heeds the call of Pan.

A hundred headed dragon set to guard the Apples of Immortality by Hera.

  • Hero Killer: While he can't take all the credit, the wound he dealt Zoe Nightshade definitely played a role in her death.
  • Multiple Head Case: As Percy put it, he would kill you in the time it took you to count them all.
  • Poisoned Weapons: His bite is deadly poisonous.
  • Small Role, Big Impact: Luke's failure to best him, taking away only a claw and a scar, was part of the catalyst that led to his betrayal of the gods.

"Phineas is bad."
"Words. Words calm Ella down. Words, words, words..."

One of the harpies sent to torment Phineas, Ella is much more shy and bookish than her sisters. She briefly joins Percy, Hazel, and Frank on their quest to Alaska.

  • All of the Other Reindeer: When she's first introduced, she's being bullied and robbed of her food by the other harpies. To be fair, this is less because of maliciousness towards her specifically and more because they're all starving and desperate for any food they can get.
  • A Dog Named "Dog": Her name is apparently Latin for..."harpy", as she says:
    Ella. Aella. 'Harpy.' In English. In Latin.
  • Back for the Finale: Gets a brief appearance in The Blood of Olympus, and is mentioned at the end to be helping with the effort to translate the Sibylline Books.
  • Big Eater: She rarely gets to eat, so she makes the most of her few opportunities.
  • Bookworm: She's read a lot of books.
  • Cloudcuckoolander: When she opens her mouth you may hear dangerous, world-altering prophecies...or statistics from horse-races in the 70s, tips on dog-grooming, or how many seasons Friends lasted.
  • Cute Monster Girl/Gorgeous Gorgon: Considering harpies are supposed to be ugly old hags, Ella's rather cute.
  • Does Not Like Cheese
  • Encyclopaedic Knowledge: As a result of remembering everything she reads.
  • Harping on About Harpies: She is one.
  • Interspecies Romance: With Tyson.
  • Living MacGuffin: She read and memorized the Syblline Books, a collection of ancient prophecies leading up to the current day and possibly beyond.
  • Motor Mouth: Ella is constantly talking about the things she's read.
  • Photographic Memory: A variation, with books. Ella can remember everything she reads — just not always when you need it.
  • Red Is Heroic: The only red-feathered, as well as nice, harpy seen so far.
  • Ship Tease: With Tyson.

Servants of Nike who ensure all participants have a stake in the proceedings.

The leucrotae (singular leucrota) are a species of monster resembling a red furred lion with hooves and a semi-equine face. Three of them were sealed into a mansion along with Halcyon Green, serving as his guards while using him as bait for more demigods.

  • Exact Words: They are invulnerable to any metal know to god or man. Nothing in that description covers other methods of killing.
  • Karmic Death: Killed by the man they were set to guard, using a method thought up by the demigods they attracted to kill.
  • More Teeth than the Osmond Family: Averted. Instead of teeth they have solid shearing plates of bone.
  • Voice Changeling: Like parrots they can mimic human voices but don't really know what they're saying. They have picked up a few phrases though, which they'll repeat in various voices in order to lure prey.
  • Voice for the Voiceless: The ones bound to Halcyon Green are telepathically linked to his thoughts and speak for him aa he's cursed with muteness.

Eccentric nymphs who follow Dionysus.

  • Abhorrent Admirer: To Dionysus, though as his servants he'll still smite those who harm them.
  • The Alcoholic: Usually, but averted with the group encountered by Leo, as they're underage maenads.
  • Beware the Silly Ones: They act like party girls but even a small group can rip a drakon to shreds.
  • Nigh Invulnerable: It is very hard to hurt them.


    Talos Prototype 
A prototype of the Talos robot encountered by the Argonauts. Flawed and imperfect, it serves as a guard dog to Hephaestus's junkyard.

    Hank and Chuck 
A pair of automatons shaped like angels that have spent the past few decades posing as statues on the Hoover Dam.

  • Those Two Guys: They only have one scene but they spend most of it bantering with each other.
  • Noodle Incident: They've visited San Francisco before to meet other statues.
  • Winged Humanoid: They're shaped like stereotypical angels.

    Chyrseae Celedons 
Backup singers made by Hephaestus for Apollo.

The Waystation

     The Waystation 
A sentient building built on top of a train station in the 1880's. It serves as a sanctuary for demigods, Huntresses, and the like.

  • Expy: It's basically a non time-trailing TARDIS.
  • Genius Loci: A benevolent example- it can reshape or "move" rooms as needed, and create an elephant-sized driveway to the barn.


Emmie, aka Hemithea, partner of Josie, mother of Georgina, ex-Huntress, ex-Princess. Once a Greek princess, she and her sister jumped off a cliff to avoid their father's drunken rampage. Apollo turned the two of them into minor goddesses (because he was dating their older sister and he thought they were praying to him for help). Retired about 40-50 years ago to be with the love of her life, and now helps run the Waystation.

  • Action Mom: Alongside Jo.
  • Badass Gay: Oh hell yes, even though she's not as combat-oriented as her partner she can still kick ass.
  • Gratuitous Princess: Though she hasn't been a princess in millennia, she did used to be one, and her former royal status is emphasized.
  • Green Thumb: She keeps a greenhouse on the roof of the Waystation.


Partner of Emmie, mother of Georgina, ex-Huntress, ex-con. Retired from the Hunters about 40-50 years ago to be with the love of her life, and now helps run the Waystation.

  • Action Mom: For Georgina.
  • Badass Gay: The woman goes into battle with sub-automatic machine guns that can hurt monsters.
  • Sweet Polly Oliver: Back when she worked with Al Capone. Yes, THE Al Capone.
  • Wrench Wench: Her mortal parent was a mechanic, so she became an expert at magical machines. She basically acts as a mechanic for the Waystation itself.


A seven year old girl who got adopted by Emmie and Josephine.

  • Happily Adopted: She is quite happy with her moms, Emmie and Josie.
  • Has Two Mommies: Josie and Emmie.
  • Luke, I Might Be Your Father: Trophonius, a child of Apollo, calls her his sister. Since his mother died long before Georgina was born, that would suggest that Georgina is also a child of Apollo, but he has no memory of fathering her.
  • Targeted Human Sacrifice: According to prophecy, if The New Hercules sacrifices her and Apollo during the re-naming of Indianapolis, he'll successfully conquer the rest of the midwest.


A headless ghost, and the half-brother of Trophonius, aka the oracle of Trophonius. Currently haunts the Waystation to stay near the caves where his brother's spirit gives prophecies.

The Amazons

A tribe of female warriors who worship war gods (like Ares, Athena, or Bellona). Unlike the Hunters of Artemis, they are allowed to have relationships and children with men — as long as those men are fine with being treated like second-class citizens. They are lead by Hylla.

A daughter of Bellona, Hylla and her sister Reyna were born in Puerto Rico to an affluent family. Through unfortunate circumstances they became employees of the sorceress Circe, seen in The Sea of Monsters. After the spa is destroyed and she parts ways with her sister, Hylla joins The Amazons and eventually becomes their leader.

  • Action Girl: She has beaten Otrera in a fight. Twice!
  • Abusive Parents: Apparently, her and Reyna's father was one, which was why they ran away from Puerto Rico to Circe's retreat.
  • Ascended Extra: A background character in The Sea of Monsters and a very important character in The son of Neptune.
  • Badass Family: She and her sister are daughters of the war goddess, Bellona. One of them at a time is awesome, but when they team up, monsters should run screaming.
  • Human Mom Nonhuman Dad: Inverted: Her mother is Bellona, the Roman goddess of war, while her father was a mortal soldier.
  • The Leader: Of the Amazons.

A member of the Amazons loyal to Hylla.

  • Back for the Dead: She returns in The Blood of Olympus just to get killed by Orion.
  • Mauve Shirt: She is a friend to Hylla and supporting Amazon in The Son of Neptune, and is killed by Orion in The Blood of Olympus.

The first queen of the Amazons. She was sent to claim the throne from her modern successor through combat and lead the Amazons in service of Gaia. Her tropes can be found here


    The Fates 
A trio of old women who control fate, particularly the time and circumstances of death.

  • Almighty Janitor: Calling them "servants" is stretching it, but they're content to sit in the background and let the gods play with their mortal toys.
  • The Dreaded: They scare everyone, even the gods. The sole exception was the giant made to kill them, and they killed him without mortal aid. Suffice to say, it's a justified reputation.
  • Small Role, Big Impact: They have all of three appearances in all the series' but they indirectly drive all of it. Justified, as you can't really avoid fate.

    The Boreads 
Calais and Zethes, twin sons of the wind god Boreas.


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