''Literature/AChristmasCarol'': The ghosts of Christmas
* Ghost of Christmas Past (Ego), Ghost of Christmas Present (Id), and Ghost of Christmas Future (Superego).

''Literature/ASeriesOfUnfortunateEvents''
* Id: Sunny -- a baby, impulsive, likes to bite things
* Ego: Violet -- the oldest, practical, an inventor
* Superego: Klaus -- super intellectual, a reader

''Literature/{{Animorphs}}'' When the group first meets the Ellimist they disagree about taking his offer to save some people and let the Yeerks have the rest.
* Marco is the Id, saying that it might be like the Noah's ark, but it would end up being more like a zoo.
* Ax is the Superego, who will go along with what the leader decides but doesn't trust the Ellimist.
* Cassie, oddly enough disagrees with everyone else and states the practical option of this being for the greater good.\\
\\
In ''The Separation'', Rachel morphs a starfish and is split in two halves. When she morphs back to human form, she has split into two versions of herself -
* The Id: A violently passionate but disorganised Rachel.
* The Superego: A gutless but intelligent Rachel.
* The Ego: What we get [[ItWasHisSled at the end of the book]].

''Literature/AnneOfGreenGables''
* Id: Anne -- impulsive, imaginative, emotional.
* Ego: Matthew -- quiet, shy, loving.
* Superego: Marilla -- strict, stern, snarky.

''AvalonWebOfMagic''
* Id: Kara -- impulsive, selfish, preoccupied with material pleasure, easily swayed by 'cute guys'
* Ego: Emily -- down-to-earth, sensible, mediator between Adriane and Kara
* Superego: Adriane -- the least morally corruptable, deep-rooted sense of right and wrong, self-righteous

''TheBartimaeusTrilogy'', although only at the very end.
* Id: Bartimaeus -- the irrepressible, sarcastic and often lazy spirit of air and fire.
* Superego: Nathaniel -- the intellectual magician who, in general, disdains emotions (or tries to, anyway).
* Ego: Kitty -- a balance of impulsiveness and motivation, and, more importantly, very much the glue keeping the former two working together.

''Literature/BraveNewWorld''
* Id: Watson -- passionate, restless, impulsive.
* Ego: Bernard -- inferiority-complex, philosophical, outcast.
* Superego: John -- emotional, intensely moral, righteous, conscientious.

''Literature/TheBrothersKaramazov''
* Id: Dmitri -- the elder brother is a womanizer, a drunkard and a hedonist.
* Ego: Alyosha -- the younger brother is a sweet, meek boy who wanted to become a monk and is the only member of the family who manages to keep a good relationship with the others.
* Superego: Ivan -- a cold, brilliant intellectual and atheist with much contempt for the rest of mankind.

''The Literature/CharlieParkerSeries''
* Id: Angel -- passionate, emotional, loving
* Ego: Parker -- the leader, acts as a balance between the id and superego (as stated in ''The Reapers'')
* Superego: Louis -- cold, logical, detached

''Literature/ChroniclesOfTheKencyrath''
* [[WalkingDisasterArea Jame]] (Id; Destruction) -- the loose cannon, the shaker-up, the shatterer of rules and boundaries.
* [[IJustWantToBeNormal Torisen]] (Ego; Creation) -- the leader, the one whom men follow and admire, the seed.
* [[TheMedic Kindrie]] (Superego; Preservation) -- he ties them together, as the calming, healing influence.

''Literature/CircleOfThree''
* Id: Cooper Rivers -- Rocker girl, the rebel of the three
* Ego: Kate Morgan -- the "normal" of the three; frequently torn between what she wants and what others expect of her.
* Superego: Annie Crandall -- the brain of the three; approaches everything with cool, scientific logic

''Literature/CourtshipRite'': The three brother-protagonists, as reflected in the roles they chose in childhood.
* Id: Joesai is "the loins", the tough, taciturn brawler.
* Ego: Gaet is "the heart", the cheerful, carefree one who makes friends easily and always finds ways to resolve disputes.
* Superego: Hoemei is "the brain", the dour, detail-oriented family administrator.

''Franchise/TheDarkTower'' had two:
* One is a fairly traditional Freudian Trio:
** Id: Roland -- Instinct.
** Superego: Cuthbert -- Wit and cunning.
** Ego: Alain -- Intuition and mediation.
* The other is a more explicit interpretation of the Freudian roles (and is actually a set of {{Split Personalit|y}}ies):
** Id: Detta -- Murderous.
** Superego: Odetta -- Ethical, but unable to fight.
** Ego: Susannah -- Functional blend of the two.
* The last book also brought us the Three Stephen Kings:
** Id: Fumalo -- Badmouthed, uninhibited
** Ego: Feemalo -- Goodmouthed, Polite
** Superego: Fimalo -- Arbiter, Id shuts up when he talks

''Literature/DavidCopperfield''
* Id: Steerforth -- Troublemaker, selfish, tries to influence David.
* Ego: David -- Everyman type, kind enough, but goes one way or the other.
* Superego: Agnes -- Selfless, loving, tries to lead David down the right path, is actually referred to as his "good angel."

''Literature/TheDemonata''
* Id: Grubbs -- Impulsive, often doesn't think before acting.
* Superego: Kernal -- Wanted to [[spoiler:give up fighting the Demonata and withdraw to keep at least some beings alive. Oh, and he had his * eyes* dug out by Grubbs]].
* Ego: Bec -- Mediates between the other two members of the Kah-Gash. [[spoiler:Especially at the end, where she negotiates with Lord Loss and brings about the end of both universes]].

''Literature/{{Discworld}}''
* The Witches of Lancre
** Superego: Granny Weatherwax -- although she's described as ''having'' a big ego, she's definitely the most rational and chilly of the three.
** Id: Nanny Ogg
** Ego: Magrat Garlick -- her role being specifically described as "running around getting the other two to make up after they'd had a row". A rare example of the ego ''definitely'' not being the leader.

''Literature/TheDresdenFiles''
* Superego: Lt. Murphy -- Dutiful Policewoman.
* Ego: Harry Dresden -- Somewhat rebelious, but never for the sake of rebeliousness alone.
* Id: Thomas Raith -- Hedonistic, pleasure-seeking. Hell, he feeds off of emotions just to live.
** The times Harry's three-man team switches around, the other characters usually fill one of these slots -- Michael Carpenter (Superego), Kincaid (Id), etc. If Sanya is brought into the mix, Harry is oftentimes shoved to the Id, and Sanya becomes the Ego.
* Id: Gard -- concerned with battle and survival
* Superego: Hendricks -- philosopher, moralist
* Ego: Marcone

The ''Literature/EighthDoctorAdventures'' swaps the roles around a few times over the course of the series:
* Id: Fitz -- A consummate hedonist who loves smoking, drinking and sex
* Ego: Sam -- While her characterization is [[DependingOnTheWriter all over the place]], she ends up at ego by default. She's more serious and logical than Fitz, but much more openly emotional and idealistic than the Doctor
* Superego: The Doctor -- Capable of making hard choices that neither of the others can make [like Mercy Killing the villain in Revolution Man]

* Id: Fitz (Still the same)
* Ego: The Doctor (More logical and driven than Fitz, but passionate and in constant wonder at the universe)
* Superego: Compassion (Coldly logical and ruthlessly pragmatic. However, Compassion offers an interesting take on Id of all things. Coming from a society completely controlled by the media signals constantly pouring into their heads, the Remote would change opinions and actions depending on the currant mood of the collective as a whole, making them extremely impulsive)

* Id: Fitz (natch)
* Ego: The Doctor (Often the balancing act between Fitz and Anji's SiblingRivalry arguments, he's the confident leader even with his amnesia)
* Superego: Anji (The OnlySaneMan in the team, who serves to bring both of them back to reality when they're off getting distracted. Also the most driven of the group since she [[TheresNoPlaceLikeHome just wants to get home]])

* Id: Trix (Hedonistic and impulsive, with questionable loyalties)
* Ego: Fitz (Fitz finally graduates from Id, due in part to vast amounts of CharacterDevelopment but also just comparison to Trix)
* Superego: The Doctor

In the ''The Emerald Atlas'',
* Oldest child [[TheCaretaker Kate]] (Ego), middle child [[BookSmart Michael]] (Superego), and youngest child [[BrattyHalfPint Emma]] (Id).

''Literature/EndersGame'' and its sequels have a power trio of the three major sentient species:
* Superego: Buggers -- Highly organized, virtually no concept of the individual, [[HiveMind communicate psychically]] faster than the speed of light, very technologically advanced, put the survival of their species first but don't seek to destroy other species.
* Id: Humans -- Very high-tech, artistic, individualistic, but also prone to irrational decisions and chaos. Have a bad habit of nearly destroying other sentient species. [[RousseauWasRight Good overall]], but can still be [[HumansAreBastards pretty dastardly]].
* Ego: Pequeninos -- Very low-tech compared to other species, tied to their traditions, have a much greater concept of the individual than buggers but still less than humans, generally open-minded. Tribes fight with each other, but outside of these battles, they try to avoid conflict.
* One can group the three Wiggin children in the same way:
** Id: Peter Wiggin -- Borderline(?) psychopath, extremely ambitious, driven.
** Superego: Valentine Wiggin -- Responsible, conscientious.
** Ego: Andrew "Ender" Wiggin -- Strikes a balance between the two.

''Literature/TheFireUsTrilogy'': The three [[ThreePlusTwo (original)]] older children fill out a trio.
* Id: [[TeamMom Mommy]] is [[CaptainObvious motherly]], making decisions based on emotion, even if they are impractical or downright dangerous. She also has violent fits.
* Ego: Hunter, the [[OnlySaneMan sole balanced member]] of the family, who attempts to mediate when Mommy and Teacher disagree on how to lead it.
* Superego: Teacher, an introvert who spends all of her time writing in and/or studying [[GreatBigBookOfEverything the Book]], and thinks as practically and unsentimentally as she needs to in order to protect those that she cares most about.

''Literature/FlowersForAlgernon''
* Superego: Charlie -- self-doubting, rational, and scientifically-minded, emotionally unfulfilled
* Id: Faye Lilliman -- Overtly sexual, artistic, and whimsical
* Ego: Alice Kinnian -- Compassionate, emotionally mature, educated, balances intellect and emotions

The later books of ''TheGeneral'' series by SMStirling and DavidDrake.
* The computer known as Center (Superego), the "ghost" of Raj Whitehall (Id), and their victim (i.e. the poor yutz barbarian they've roped into being the person who will bring civilization to his homeworld) gets to be "Ego" as he has to put together Raj's wise experience with war and humanity with Center's cold logic and near-infinite knowledge.

''Literature/HarryPotter'':
* Superego: Hermione -- Intelligent, respectful to authority, has proper 'manners'. Her 'know it all' quality can get on the other characters nerves.
* Id: Harry -- He has "a saving people thing" as Hermione says in ''Harry Potter and the Order of the Phoenix''
* Ego: Ron -- Act as the 'middle' of the two when Harry wants to rush off to save somebody but Hermione wants them to take their time being as cautious as possible.
Alternatively:
* Id: Ron -- generally messy, eats at every opportunity to do so, is almost always the first one to advocate breaking a rule, good cause or not, has intuitive and social knowledge of the magical world gained by being a native but isn't up-to-snuff on how magic works on a scientific level
* Superego: Hermione -- likes organization and neatness, the one who most often refuses to eat if something perceived as more important is at play, is almost always the first one to advocate sticking to the rules or the established way of doing things, has academic and theoretical knowledge of the magical world gained by education and research but is ignorant of a lot of magical social conventions (i.e. house-elves, "giants are really all that bad, it's just wizard propaganda", the tales of Beedle the Bard)
* Ego: Harry -- not messy, not tidy, eats normally, breaks rules for a good cause but will usually play it safe, has neither intuitive nor academic knowledge and usually relies on the other two to explain things
** The three could also be seen as the embodiment of Body (Ron), Mind (Hermione), and Heart (Harry).
** It's also easy to see Harry as the Ego, since Ron seems to fit the traditional description of Id.
*** Given the frequency with which Hermonie and Ron get into fights and Harry is caught between them, it seems more like Harry is Ego, Ron is Id and Hermione is Superego.
** {{Lampshaded}} in the sixth movie
-->Professor Mc Gonagall: Why is it, when something happens, it is '''always''' you three?
** Also Lampshaded when the narrative refers to that "little voice" in Harry's head telling him what to do. [[TheConscience It sounds just like Hermione...]]
* A Secondary trio is presented in ''[[Literature/HarryPotterAndTheDeathlyHallows Deathly Hallows]]'' during the main trio's absense from Hogwarts. Though they do not fit the bill as easily as the main three, they are:
** Ego: Neville -- completely devoted to Dumbledore's Army and the LaResistance taking place at Hogwarts.
** Id: Ginny -- Brave and loyal, but a bit of a hot-head and impulsive.
** Superego: Luna -- Very smart and an idealist.
* The Marauders also fit this fairly well if you retroactively exclude [[EtTuBrute Peter]]:
** Superego: Lupin -- calm, studious, the most prone to common sense out of the three
** Ego: James -- over-confident and mischievous, but less reckless than Sirius
** Id: Sirius -- the rebel of the group, doles out the harshest bullying to Snape and is driven to intense emotion
*** Some would argue that James is the "id" and Sirius is the "ego".
* In-universe in ''[[Literature/HarryPotterAndTheDeathlyHallows Deathly Hallows]]'', the titular three characters of "The Tale of the Three Brothers" qualify. Their chosen gifts from Death each correspond with their role in the trio. When reading the story, Harry, Ron and Hermione each have their own unique ideas about the "best" gift of the three, corresponding to their ''own'' roles. [[note]] Harry thinks it's the Resurrection Stone, because he had to grow up without his parents, and he suffers from a serious case of survivor's guilt after the deaths of many of his close friends; Ron thinks it's the Elder Wand, since he has a serious inferiority complex from constantly being overshadowed by his successful older siblings and his famous best friend; Hermione thinks it's the Cloak, because she values intellect above all else, and believes that the Third Brother "won" by outsmarting Death.[[/note]]
** Id: The First Brother receives the Elder Wand, which is more powerful than any wand ever crafted before it, because he desires nothing more than power over others.
** Ego: The Second Brother receives the Resurrection Stone, which has the power to bring back the dead, because he has a compulsive desire to save loved ones from Death.
** Superego: The Third Brother receives the Cloak of Invisibility, which allows him to successfully hide from Death until he's lived into old age, because he knows to ask for the only gift guaranteed to keep him safe.

''Franchise/TheHitchhikersGuideToTheGalaxy''
* Id: Ford Prefect is reactionary, prone to acting first, planning later (if ever), wild and unpredictable.
* Ego: Arthur Dent is generally on an even keel, even when outlandish things happen he keeps (moderately) cool.
* Superego: Tricia [=McMillan=] is smart, idealistic, and usually the one drolly commenting on the situation.

''Literature/JohnDiesAtTheEnd''
* Ego: Dave -- The StraightMan
* Superego: Amy -- Moral center of the group
* Id: John -- [[CloudCuckoolander Batshit insane]]

''Literature/LesMiserables''
* Les Amis
** Id: Courfeyrac -- The Center - warm, friendly, loves women and fashion.
** Ego: Combeferre -- The Guide - "Revolution, but Civilization."
** Superego: Enjolras -- The Chief - the marble lover of liberty.

''Literature/LockwoodAndCo''
* Id: Lucy -- Highly sensitive Talent who bases her decisions on instincts and gut reactions. Constantly fighting with George.
* Superego: George -- Analytical and intelligent; bases decisions on copious amounts of research. Constantly fighting with Lucy.
* Ego: Lockwood -- The leader and decision-maker who is constantly mediating between Lucy and George.

''Literature/LookingForAlaska''
* Id: Alaska Young -- Intelligent, but brash, impulsive, and arrogant; does what she feels like doing and doesn't care how it impacts anyone else until later.
* Superego: Miles "Pudge" Halter: Calm, kind, withdrawn, intelligent, and usually the most reasonable person of the three.
* Ego: Chip "The Colonel" Martin: Short-tempered, but incredibly intelligent, meticulous, and well-spoken.

''Literature/LordOfTheFlies''
* Ego: Ralph -- Wants to get off the island but is practical about it
* Superego: Piggy -- Smartest and only one who remains logical throughout
* Id: Jack -- Instinctual and acting on the most immediate need

''Literature/TheLordOfTheRings''
* Frodo (Ego), Sam (Superego), and Gollum (Id).

''Literature/TheLordOfTheRings'', the Three Walkers
* Aragorn (Ego), Legolas (Superego), and Gimli (Id -- in the movie, anyway).
** That's also the way their respective races work -- Humans (Ego), Elves (Superego), and Dwarves (Id).

''Literature/TheLordOfTheRings'', the three main Wizards
* Gandalf (Ego), Saruman (Superego), Radagast (Id).

* Do we have one for ''Literature/TheHobbit''? Bilbo, Gandalf and Thorin certainly have airs of this, but matching them is trickier than you'd think- is Bilbo the reconciliatory Ego between the driven Thorin and the detatched Gandalf, or is it Gandalf between the instictual Id Bilbo and the proud, calculating Thorin? Or is it even Gandalf who is the Id, tempting the irresponsible Tookish side out of Bilbo while Thorin would rather he do the sensible thing and stay at home, out of the way of those more qualified for the quest?

''PercyJacksonAndTheOlympians''
* Percy (Id), Annabeth (Superego), and Grover (Ego).
Annabeth, Thalia, And Luke, before Grover found and took them to Camp Half-Blood, count as well
* Annabeth (Superego), Luke (Id), and Thalia (Ego).

''Literature/ThePictureOfDorianGray''
* Basil Hallward (Superego), Lord Henry (Id) Dorian Gray (Ego).

''The Mystery Kids'':
* Ego: Holly Adams -- the most enthusiastic mystery fan and the best at deductive reasoning
* Id: Miranda Hunt -- the impulsive one who loves bad jokes but has occasional inspirations
* Superego: Peter Hamilton -- the technical expert with a love of gadgetry and a ''car numberplate collection''

''Nancy Drew''
* Nancy Drew (Ego), Bess Marvin (Id), and George Fayne (Superego).

''The Other Boleyn Girl'' keeps it all in the family:
* Ego: George Boleyn -- Manages between Mary and Anne. Follows the family norms for the most part but also sometimes goes after his own desires.
* Id: Anne Boleyn -- Passionate, prone to temper-tantrums, driven by her desires
* Superego: Mary Boleyn -- For the most part, follows what society and her family expects of her.

''Literature/{{Shannara}}''
* ''Literature/TheSwordOfShannara'': Shea and the two criminals who captured him form one after they agree to team up.
** Ego: Shea Ohmsford -- NiceGuy and the only one to have all the information about what is going on; the only one who can complete the mission and defeat the BigBad
** Id: Panamon Creel -- Flamboyant highwayman and professional criminal who makes friends at the drop of a hat, believes in living life to the fullets, and has a HairTriggerTemper that can be set off without warning
** Superego: Keltset -- Calm, rational, [[MessianicArchetype messianic figure]] who doesn't let his emotions get the best of him. Mute.

* ''[[Literature/TheSwordOfShannaraTrilogy Elfstones Of Shannara]]'': [[DemonLordsAndArchDevils The Dagda Mor]] and his CoDragons form a villainous one.
** Id: [[NamesToRunAwayFromReallyFast The Reaper]] -- A being forged of pure insticnt, created to be the ultimate predator. Killing is as insinctual to it as breathing; when it wants something it just [[TheJuggernaut keeps on coming]] until you or it is dead.
** Superego: [[TheMole The Changeling]] -- Cautious and manipulative, using its ShapeShifting abilities to confuse and mislead; waits for the perfect opportunity to strike despite being more or less driven by spite.
** Ego: [[TheBigBad The]] [[EvilGenius Dagda]] [[EvilSorceror Mor]] -- Repressed ChaoticEvil, he prefers to work through subordinates but isn't afraid to confront his opponents directly when the opportunity presents itself. A planner with the ability to be flexible.

* ''Literature/TheHeritageOfShannara'': The trio tracking Par in ''Talismans'' form one.
** Ego: Morgan Leah -- TheSmartGuy, strategist and leader of the group.
** Id: Damson Rhee -- TheHeart, along because she's in love with Par, very emotional.
** Superego: Matty Roh -- SugarAndIcePersonality, BrokenBird, and cool-headed in the extreme.

''Literature/ASongOfIceAndFire''
* Played with in the Baratheon Brothers:
** Id: Robert Baratheon is devoted only to the physical pleasures of life; food, drink, sex and glorious battle!
** Superego: Stannis Baratheon is cold, rational and entirely devoted to upholding justice and the laws of the realm as they are. He often feels dishonoured by his brother Robert's impulsive actions in court, or his impulsive actions in general, such as having a casual sexual encounter on Stannis' wedding night, in Stannis' marital bed.
** Ego: Renly Baratheon is more level-headed and down to earth, neither overly impulsive like Robert nor extremely strict like Stannis. However, he subverts part of the trope in that he offers no mediation between Robert and Stannis. In fact, he adds to it somewhat as Stannis percieves Robert as favouring Renly over him.
*** Robert is technically the ego (when he feels up to it) as his will is the only thing keeping his brothers' ambitions at bay. Renly is also the id since he doesn't have the sense of responsibility Robert has (if not for ruling the kingdoms then keeping the Targaryens out at least).
* Played straight in the meeting in ''Literature/AClashOfKings'' between Renly, Stannis and Catelyn Stark:
** Superego: Stannis demands that Renly submit to Stannis and accept Stannis as king due to Stannis, by law, having the superior claim by being the elder brother.
** Id: Renly demands that Stannis accept him as king, due to him seeing himself as fulfilling a more romantic ideal of king, basically.
** Ego: Catelyn Stark desperately tries to mediate between them and get them to come to a compromise and join together against their extremely powerful common enemy, the Lannisters.
* Also, before the series even began, the triumvirate that overthrew the Targaryens:
** Id: Robert Baratheon -- Again, loud, boisterous, lecherous, gluttonous, etc.
** Superego: Eddard Stark -- Honorable and self-controlled, even to a fault.
** Ego: Jon Arryn -- The real ringleader of the rebellion, and, as a foster father to both Robert and Eddard, the one who mediated between the two. Self-controlled, but also practical. (Not surprisingly, things fell apart pretty quickly once he died.)
* Then there's the Lannnister trio.
** Id: Cersei seems like the archetypal Lannister but as the books progress, we see that her scheme to put an incest-born pureblood Lannister on the Iron Throne was her own power grab and that she resents er gender because it makes her powerless.
** Superego: Tyrion is loyal to the family no matter how much they hate him [[spoiler:until book 3]].
** Ego: Jaime loves his siblings.
* The Starks who made the journey to King's Landing.
** Superego: Sansa really wants to play her role as a potential queen.
** Id: Arya just wants to go home and always disregards her duty as a lady.
** Ego: Poor Ned is playing referee to his teenage girls.
* The surviving Greyjoy brothers
** Superego: Aeron is a dedicated priest to the Drowned God.
** Id: Euron is a CrazyAwesome EvilOverlord.
** Ego: Victarion [[IJustWantToBeNormal just wants to be normal]].
* Aegon and his sister wives.
** Superego: Aegon the leader of the Targaryens, just and fair to everyone.
** Ego: Visenya passionate, stern and sensual.
** Id: Rhaenys younger then Visenya, graceful and more lady like
*** Visenya is also the superego as she is more level headed compared to her siblings.
* Cold, ruthless schemer Petyr Baelish (Superego) and jovial empathic negotiator Tyrion (Id) are balanced by Varys who has elements of both (Ego).

''Literature/TheSpiderwickChronicles''
* Id: Mallory -- Ready to fight, somewhat grumpy
* Ego: Jared -- Both mischievous and level headed
* Superego: Simon -- Calm and pacifistic

''TheStainlessSteelRat''
* Superego: Definitely "Slippery" Jim [=DiGriz=]. Kind of a subversion, as he's a criminal genius.
* Id: Angelina (no, not ''that'' [[AngelinaJolie Angelina]]).
* Ego: James and Bolivar, their twin sons.

The three dragons in ''Age of Fire'' are practically cut out around this.
* Id: Auron -- inclined to rash actions and going it alone. Advocates a "back to nature" philosophy.
* Ego: The Copper -- A rational and calculating politician.
* Superego: Wistala -- Moralistic, dislikes fighting (especially later on) and wants everyone to just get along. Often ends up being the mediator.

''Literature/StarTrekMyriadUniverses'': "The Chimes At Midnight"
* Ego: Captain James T. Kirk
* Id: Commander Thelin (an Andorian who is first officer because Spock died in childhood in this universe)
* Superego: Dr Leonard [=McCoy=]!

''StarWarsExpandedUniverse: [[XWingSeries X-wing]]: [[ColonCancer Starfighters over Adumar]]''
* On a mission to a world that at first seems to have the [[PlanetOfHats hat]] of pilot-worship, four of the New Republic's best pilots try to sort things out. This is possibly the funniest book in all of Star Wars.
** Id: Wes Janson, dubbed "the Darling One" by Adumarians. Loves making jokes, snarky observations, believed to have very little maturity. (Really he ''is'' mature when it counts, but he mouths off a lot.)
** Superego: Derek 'Hobbie' Klivian, "the Dour One". He's the group's cynic, though far from TheEeyore.
** Ego: Both Tycho Celchu, "the Doleful One" and Wedge Antilles, "the Dilligent One". They're both more inclined to leadership and somewhat more serious. Somewhat. Tych is given to occasional, devastating one-liners, and while Wedge is usually there to be appalled at jokes, after he gets laid and later gets back into his starfighter he briefly surpasses Wes.
--->'''Wedge''': "We have the right tools to subvert our Imperial admiral."
--->'''Hobbie''': "What tools?"
--->'''Wedge''': "Oh, Wes's maturity, your optimism, and my diplomatic skills."
--->'''Hobbie''': "We're doomed."

''Franchise/StarWarsExpandedUniverse: Literature/HandOfThrawn Duology''
* Id: Flim, the con artist [[DeadPersonImpersonation physically impersonating Thrawn]]; his ambition is mostly to survive and get paid. His grasp of strategy and tactics is negligible, and to keep up the deception he needs
* Superego: Major Tierce, strategist, feeding Flim tactics.[[supersecretspoiler: A clone with a bit of Thrawn burning in his head]]
* Ego: Moff Disra, who set the [[BigBadDuumvirate triumvirate]] up in the first place, provider of supplies, handler of political fallout. Doesn't really get along with Tierce, but they need each other and are undeniably effective.

''Literature/TalesOfMU''
* Id: Steff -- Impulsive, death-obsessed necromancer and self-proclaimed future villainess.
* Superego: Amaranth -- The most moral; believes in love and peace and being closer to nature.
* Superego: Mack -- The protagonist; between the two above extremes.
** Tends to vary somewhat: Mack occasionally drifts into Id territory with [[OnlySaneMan Ian]] often taking her place as Ego.

''Literature/TheThreeMusketeers''
* Athos (Ego), Aramis (Superego), and Porthos (Id).

''Literature/TwentyThousandLeaguesUnderTheSea''
* Id: Ned Land -- impulsive, violent, mostly concerned with food, hunting and escape
* Superego: Conseil -- imperturbably calm and reasonable, cares about nothing except his master's welfare and cataloguing wildlife
* Ego: Professor Aronnax -- mostly calm and scientific but also gets upset about being held prisoner; mediates between his comrades
** The book is, anyway, one massive psychoanalysis: being captured and dragged down to the depths in a mysterious vessel, to encounter frightening alien-looking creatures and to descend into a maelstrom., etc. etc. etc. ...

''Literature/{{Twilight}}''
* The main love "triangle"
** Id: [[OurWerewolvesAreDifferent Jacob]] -- HotBlooded
** Ego: Bella -- Mediator
** Superego: [[OurVampiresAreDifferent Edward]] -- TheStoic

* The Cullen women:
** [[ManicPixieDreamGirl Alice]] (Ego), [[BrokenBird Rosalie]] (Id), and [[TeamMom Esme]] (Superego).

* The Cullen guys:
** Emmett (Id), Jasper (Ego), and Carlisle (Superego).

* The Volturi
** Caius (Id), Aro (Ego), and Marcus (Superego).

''Literature/UndeadOnArrival''
* Novak (Ego), Pulaski (Id), and Stew (Superego).

''Vampire of the Mists'' features a set in the residents of Castle Ravenloft:
* Superego: Jander Sunstar -- the voice of reason, restraint, responsibility, and conscience.
* Id: Trina -- impulsive, selfish, animalistic, and without conscience.
* Ego: Strahd von Zarovich -- in charge, mediates between the two, listens to Jander's advice, while at the same time shares many of Trina's urges.

''Literature/TheWardstoneChronicles''
* Id: Alice -- Witch-to-be teetering on the edge between good and evil. Is always willing to use the dark to accomplish her aims but does not wish to belong to it.
* Ego: Tom -- The Spook's apprentice, always torn between his duty to his master and his friendship with Alice. He always wants to do what is right, but often isn't sure what that is.
* Superego: The Spook -- Former priest who has decades protecting the County from ghosts, witches and other monsters. He is always sure of what the right thing to do is, and tries not to let mercy or human emotion get in the way.

''Literature/TheWheelOfTime''
* [[GentleGiant Perrin]] (Superego), [[FarmBoy Rand]] (Ego), and [[{{Trickster}} Mat]] (Id).
Interestingly enough due to CharacterDevelopment these change to
* [[OurWereWolvesAreDifferent Perrin]] (Id), [[TheChosenOne Rand]] (Superego), and [[TheStrategist Mat]] (Ego).

''Literature/TheWonderfulWizardOfOz'' presents a neat inversion: the trio accompanying Dorothy are defined by what they ''lack''. Double-subversion in that their perceived lack is actually their defining trait.
* Scarecrow (No brain - the anti-[[TheSpock Spock]]), and really TheSmartGuy
* Tin Man (No heart - the anti-[[TheMcCoy [=McCoy=]]]) and really TheHeart
* Cowardly Lion (No courage - the anti-[[TheKirk Kirk]]) and proof of TheSoCalledCoward
** How perceptive! The idea of "lack" is central to the writings of Jacques Lacan, who developed Freud's ideas. So this must be the classic "Lacanian Power Trio".

''Literature/WarriorCats''
* Original Series
** Firestar (Id), Graystripe (Ego), and Sandstorm (Superego).
* The New Prophecy
** Ego: Brambleclaw and Stormfur
** Id: Squirrelflight and Crowfeather
** Superego: Leafpool, Feathertail, and Twanypelt
* The Power of Three
** Lionblaze (Id), Jayfeather (Ego), and Hollyleaf (Superego).
* Omen of the Stars
** Lionblaze (Id), Dovepaw (Ego), and Jayfeather (Superego).

''Literature/ThePrincessSeries''
* Snow (Id), Danielle (Ego), and Talia (Superego).

''The Men in the Jungle''
* Id: Willem Vanderling -- Adapts to the endless brutality on Sangre quite easily, becoming a murderer and cannibal in a matter of weeks.
* Ego: Bart Fraden -- Is willing to commit stupefyingly horrid war crimes for the sake of overthrowing the planet's corrupt elite (ItMakesSenseInContext).
* Superego: Sophia O'Hara -- Has the most conscience of any character in the novel (though that isn't saying much). Frequently questions Fraden's "leadership" and attempts to instruct him morally, despite ultimately being ineffectual.

''WorldWar'': the three most senior members of the alien Race's conquest fleet:
* Id: Straha, third in the hierarchy, is so aggressive, radical, adaptable and short-term oriented his superior compares him to humans (not a compliment). [[spoiler: After the conquest suffers setbacks, he tries to overthrow his commander and take over the fleet. When that fails, he takes refuge with humanity, only to later regret his choice]].
* Ego: Atvar, the fleetlord, tries to balance tradition and change, caution and initiative, and play off the other two against each other.
* Superego: Kirel, the second-in-command, is focused on not making any mistakes, and never deviating from the path laid down, almost regardless of price or consequence.

''RomanceOfTheThreeKingdoms'' has the three sworn brothers of Shu:
* Superego: Liu Bei, in a rare case of the Superego leading the trio, is (with a notable exception or two) constantly calm and very concerned with high-minded ideals such as virtue and integrity.
* Ego: Guan Yu, the middle brother, is the practical ego; he usually sides with Liu Bei in calming the impulsive Zhang Fei, but occasionally, with Liu Bei's benevolent nature leads him to do things that are obviously going to screw them over, he takes Zhang Fei's side instead. Nevertheless, he always lets Liu Bei have the final word.
* Id: Zhang Fei, the youngest brother, is BoisterousBruiser par excellence, who lives wine and fighting, particularly if he's fighting against anyone who dares look at either of his brothers the wrong way. Despite frequently disagreeing with superego Liu Bei, however, he's always unswervingly loyal.

''Literature/ChapterhouseDune'':
* Id: Bellonda, by far the most emotional and impulsive of the trio. Really weirdly played as she's a Bene Gesserit-Mentat, so one would thing she'd be the most controlled and stoic of the group.
* Ego: Odrade, practical and balanced, she allows her emotions to come through but only when it's effective for her purpose.
* Superego: Tamalane, the model of the old school stoic Bene Gesserit, mellowed out in old age to the point of needing to be replaced and countering Bellonda's more visceral recommendations.

''[[Literature/{{Foundation}} Foundation and Earth]]'':
* Id: Trevize -- Hot-headed and instinctive. He is actually part of the team because he makes good decisions without thinking things through.
* Superego: Bliss -- Literally a mastermind (as part of [[GeniusLoci Gaia]]), who thinks through every of her actions to be the best for everyone and to solve problems with as little violence as possible.
* Ego: Pelorat -- More cold-blooded than Trevize but still a normal human, he usually understands the point of both Trevize and Bliss.

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