alt title(s): Trio Of Power

A show that thematically centers on the tension between two opposing ideas will manifest that tension through three central characters: one character representing each opposing idea, and a character who must integrate and reconcile the opposition. In Freudian terms, the characters play out the equivalents to the Ego, Superego, and Id.

Where the Freudian terms are: "The id contains primitive desires (hunger, rage and sex), the super-ego contains internalized norms, morality and taboos, and the ego mediates between the two and may include or give rise to the sense of self and the well being of humans."

Ego also uses a series of defense mechanisms (repression, projection, rationalization, etc..) to lay the smack down on the Super-ego and Id when they can't get along. Expect to see the leader do something similar to their subordinates in a Power Trio as well.

In short, Opposites Attract + 1. See also Five Man Band, Two Guys And A Girl, Terrible Trio, Three Faces Of Eve, and Three Amigos. There is a closely related ensemble in Evil Duo. A Comic Trio uses the same ingredients, but the leader is crazy, the action one is stupid, and the thinking one is powerless. See also Cast Calculus. Depending on the fandom and its tendency for shipping, a power trio may easily become an OT 3.

Examples

Anime and Manga

Serial Experiments Lain has Lain as all three:

Child Lain: Quiet, emotionless (Superego)
Normal Lain: Rational, has emotions, only personality Lain is fully conscious of (Ego)
Lain of the Wired: Self-destructive, impulsive, hedonistic (Id)

Axis Powers Hetalia has the Axis Forces:

Ludwig/Germany: Rational, workaholic, duty-bound (Superego)
Feliciano/Italy: Child-like, naive, ditzy (Id)
Kiku/Japan: in the middle (Ego)

Baccano! has a set in the Gandor brothers:

Keith Gandor: Oldest brother. The Quiet One and flat-out voiceless in the anime. Conservative thinking and adherent to ethics and tradition (Super-Ego).
Berga Gandor: The middle brother. Huge, emotional, and intimidating. Not very bright (Id).
Luck Gandor: The youngest. The calm, collected "brains" of the group. Usually at the head in most of their dealings and serves as the mediator (Ego).

Black Lagoon

Dutch: Pragmatic, unemotive, deadpan (Superego).
Revy: prone to extreme mood swings, all the way from psychotic rage to tender affection (Id).
Rock: cool under presure (once even reasoned his way out of a firefight), but also often swayed by other's plight (Ego).

Digimon Adventure and Digimon Adventure 02

Taichi: Impulsive, outspoken, active (Id)
Koushirou: Logical INTP-type computer whiz (Superego)
Yamato: Cautious and sensitive, aggressive when provoked (Ego, shifts between Id and Superego, with a tendency towards Superego)

Digimon Savers

Masaru: Brash street fighter, The Messiah, Dumb Is Good (Id)
Touma: Calm, cool, logical (Superego)
Yoshino: Four years older, usually thinks with one and acts with the other (Ego, shifts from favoring Superego to favoring Id)

Digimon Tamers:

Takato: Ascended Fanboy, normal, friendly, definitely the least Hot Blooded ~~goggle-boy~~ leader (darn you, Masaru!) this franchise has to offer. (Ego)
Ruki: Ineffectual Loner, angry, definitely the most Badass girl this franchise has to offer. (Id)
Jenrya: Technical Pacifist, thoughtful, Zen-like, definitely the hardest-to-classify character this franchise has to offer. (Superego)

Full Metal Panic:

Sousuke: Stoic, rational, socially inept (Superego).
Kurz Weber: Impulsive, lecherous (Id).
Mao: Balanced. As commander, must make use of both of her subordinates' talents (Ego).

Team Getter Robo? They're a bit of a special case, though, as their positions tend to shift depending on whether the current version owes more to the goofy 1970s anime or the dark and violent manga version.

Ryoma - Ego or Id. If they're playing it Lighter And Softer he'll be a typical Hot Blooded anime hero/team captain. If it's Darker And Edgier, he'll be Hot Blooded to the point of being psychotically violent.
Hayato - Whether he's a cool-headed foil to Ryo's loud, flashy super robo antics or a cold an calculating sociopath, Hayato almost always fits into the Superego mold. His Getter-2's hit and run fighting style reflects this nicely.
Musashi/Benkei - Whether he's the Id or Ego depends on the version. While he's generally a bumbling oaf who charges into battle without thinking, in darker Getter stories, while still more violent, he's usually less so than his teammates and has a great deal more empathy.

Kaleido Star:

Sora: the perky leader, often running on emotion (Id)
Anna: cool-headed off-stage, but would rather be doing comedy (Ego, tending towards Id)
Mia: the semi-serious and logical one (Superego)

Mai-HiME:

Mai: balance, mediation, self-reliance (Ego)
Natsuki: reason (Superego)
Mikoto: hunger, instinct, emotion (Id)

Mai-Otome, especially the manga:

Arika: perky, hyper, friendly, none-too-bright (Id)
Nina: serious, stern, often at odds with Arika (Superego)
Erstin: gentle and shy mediator between the two (Ego)

Mermaid Melody Pichi Pichi Pitch:

Lucia: Leader, but more concerned with her love life than the rules that might prevent it (Id)
Hanon: Picks fights with Lucia over breaking the rules and usually goes on to do the exact same thing (Superego when others, namely Lucia, are involved; Id otherwise)
Rina: Mediator (Ego)

Mobile Suit Gundam SEED:

Murrue Ramius: The Captain and Team Mom. Compassionate, humanistic, and willing to bend and break rules as necessary in order to serve what's best for the individuals involved. (Id)
Natarle Badgiruel: Sergeant Rock. Firmly believes in the importance of discipline and abiding by military regulations. (Superego)
Mu La Flaga: Veteran Ace Pilot who serves as a pragmatic midpoint between Murrue and Natarle, respecting military regulations while recognizing that some situations require flexibility. Maintains a balance between his natural inclinations toward being a good soldier and being a good person. (Ego)

Neon Genesis Evangelion

Rei: A moral and self-sacrificing Emotionless Girl (Superego)
Shinji: Wants to prove himself to his father, discharge his guilt, make himself a hero... (Ego)
Asuka: Can barely control her rage (and, sometimes, lust). (Id)
- According to The Other Wiki, intended to correspond to the other Freudian triad of Thanatos (Death), Eros (Love/sex) and Mortido (destruction).

Suzumiya Haruhi:

Haruhi: Impulsive, prone to extreme mood swings, has little to no concern for the feelings of others (Id).
Yuki: Quiet, supremely rational, unemotive, highly competent (Superego).
Kyon: Balanced; not as stoic as Yuki, but not as insane as Haruhi (Ego).

Naruto has six Power Trios(it helps all squads are in three and were probably made with this in mind):

Team 7:
- Naruto: Hyperactive, brash knucklehead (Id)
- Sakura: Fawns after Sasuke, regularly hits Naruto (Ego tending towards Superego)
- Sasuke: Acts superior to Naruto (when Naruto isn't saving his bacon, of course) (Superego)
Team Yamato:
- Naruto: Impulsive, emotional, stubborn, chaotic (Id)
- Sai: Rational, emotionless, effective, lawful (Superego)
- Sakura: Practical, smoothing, balanced, neutral (Ego)
Team 8:
- Hinata: Extremely quiet Fan Of Underdog, wouldn't disagree with anyone ever (Ego)
- Kiba: Hyperactive, brash knucklehead (Id)
- Shino: Believes he should be leader over Kiba (Superego)
Team 10:
- Shikamaru: Genius, extremely mellow (Ego)
- Ino: Angry, loud, convinced of her own superiority (Superego)
- Chouji: Mostly concerned with his next meal (Id)
Team Gai:
- Lee: Badass Normal who wants to train his way to the top (Ego)
- Tenten: Comments on the attractiveness of every guy she meets (mostly seen it the anime filler) (Id)
- Neji: Nietzsche Wannabe (Superego, tending towards Ego after his defeat at the hands of Naruto)
According to Word Of God Tenten is actually the balancing force on Team Gai making her the Ego, while Lee with his burning passion and sometimes uncontrolled emotions seems more like the Id.
The Sand Siblings:
- Gaara: Ax Crazy (Superego, tending toward Ego after his defeat at the hands of Naruto)
- Temari: Intelligent and despite her tough demeanor doesn't seem interested in conflict (Ego)
- Kankuro: Obnoxious and talks tough (Id)

There's also the most obvious one of the Sannin, who were essentially the same as Team Seven:

Jiraiya: (Id)
Orochimaru: (Superego)
Tsunade: (Ego)

One Piece:

Sanji: Cook, Pervert, ruled by emotions (id)
Zoro: Concerned with honor, especially in battle. He also constantly clashes with Sanji (superego)
Luffy: The only one who can make them work together, shows both emotion/instinct motivated actions and actions motivated by higher concepts such as Nakama and his own personal idea of justice (ego)

The Prince of Tennis: The Three Demons of Rikkai Dai Fuzoku:

Sanada Genichirou: Called the "Emperor", he's strong, ruthless, and has a tendencity towards violent reaction. (Id)
Yanagi Renji: The "Master", he is the team's data specialist, uses statistics and probabilities during tennis matches to predict the opponent's move, and crafts the team's stretegies. Tends to be cool and aloof. (Superego)
Yukimura Seiichi: Called "Child of God". Although he can be quite ruthless himself, Yukimura is the force uniting his team. (Ego)

Sailor Moon (pre-Jupiter):

Sailor Moon (Id)
Sailor Mercury (Ego)
Sailor Mars (Superego).

Samurai Champloo:

Mugen: Brash vagabond (Id all the way)
Jin: Stoic, quiet ronin (Superego all the way)
Fuu: Balance (Ego)

Samurai Pizza Cats:

Speedy Cerviche (Ego)
Guido Anchovie (Id)
Polly Esther (Superego)

Shugo Chara:

Ran: Outspokken, fun-loving Genki Girl (Id, sometimes Ego)
Miki: Clam and controlled Bokukko and smartest of the three (Superego)
Suu: Cute and polite girl, who always tries to make other happy (Ego, sometimes Superego)
- However, this three characters are a special case, since they all basically act as the Superego to Amu Hinamori's Ego.

Soul Eater (Although it could be a bit subverted since most of the time they work separatly)

Maka Albarn: The most equilibrated of the trio, tends to let herself be fueled both by her logic and her emotions (Ego).
Black Star: Prefers to act before thinking in the results of what he is doing, by far the most impulsive of the trio (Id).
Death the Kid: usually cold, smart and talented enough to face almost anything, however many times he lets his obsessive compulsive tendencies take control of him, this ironically from the fact he wants moral and physical perfection and balance, he is a god after all (Super Ego).

Spiral: Suiri no Kizuna

Eyes: the leader, hands-off and mysterious (Ego)
Kousuke: brash, violent, intelligent but not a thinker (Id)
Rio: Sly, small, Badass Lolita and uses it her advantage (Superego)

Strike Witches: The Karlsland Witches

Erica (Id)
Minna (Ego)
Gertrud (Superego)

Tengen Toppa Gurren Lagann, before it becomes a Five Man Band:

Kamina: unstoppable passion (id)
Simon: restrained reason (superego)
Yoko: keeps both under control (ego)

Transformers: Robots in Disguise: The Autobot brothers.

Side Burn: Hotheaded and girl-crazy but very sympathetic (Id)
X-Brawn: Tough and thrill-seeking but well-behaved (Ego)
Prowl: Highly disciplined and law-enforcing (Superego)

Tweeny Witches AKA Magical Girl Squad Alice:

Alice: Red Headed Heroine Genki Girl Determinator (Id)
Eva: A very nice witch with little magical power (Ego)
Sheila: Insufferable Genius Tall Dark And Snarky White Haired Pretty Girl (Super Ego)

The World Is Mine, fairly recently

Mon: No Kill Like Overkill combined with just about Anything That Moves (Id)
Toshiya: Starts out as Mon's bitch and is now a Manipulative Bastard. (Ego)
- After Mon's encounter with Hakumadon they seem to be switching.
Maria: Shows compassion to anyone, even to the above two (Superego)

Zettai Karen Children

Kaoru (psychokinesis) - Id; may have something to do with her mother and older sister's Most Common Super Power
Aoi (teleportation) - Ego; the only one with a "normal" upbringing
Shiho (telepathy) - Superego; is a one-girl CSI for her poice chief father

Comic Books

The Avengers:

Captain America: Charismatic, idealistic, peacemaking; the face of the group and ideal hero (Ego)
Iron Man: Intellectual, pragmatic, and paranoid; can get a little Knight Templar without balance (Superego)
Thor: Loves fighting, storytelling and good company; the 'smite first and ask questions later' guy (Id)

Justice League (of America), and the recent (2008) comic series Trinity: "The triumverate" of Superman, Batman and Wonder Woman often match this (although the position each occupies can change depending on the situation and who's writing). Most of the time:

Wonder Woman: Ego (Superman's ideals, but as a trained warrior, understanding Batman's points)
Superman: Appropriately enough, the Superego, the idealist and one most concerned about the Rules
Batman: Id, the rule breaker and angry one.

Alternately, In most recent Post Crisis portrayals, as well as Kingdom Come:

Wonder Woman: An impulsive, often violent (snap! There goes a neck!) Proud Warrior Race Guy, in sharp opposition to her original creator's intended Golden Age motivations for the character. Id.
Batman: Calculating, ruthlessly pragmatic, always planning, humorless. Superego.
Superman: The tiebreaker; tries to hold the other two to the heroic ideals that are supposed to be the nominal goal of superheroes. Ego.

Legion of Super Heroes, the Founders Three:

Cosmic Boy: Ego
Lightning Lad/Live Wire: Id
Saturn Girl: Superego

These roles aren't, however, carried over into the animated series, in which Cosmic Boy and Saturn Girl are not consistently part of the core team on which the series focuses.

Strangers In Paradise:

Katchoo (id)
Francine (superego)
David (ego)

Young Justice - Red Tornado puts the three original members of Young Justice into these groups in issue 1.

Robin, intellectual and disciplined, Superego
Impulse, Id (Raised in a virtual world, lives in the moment)
Superboy, Ego (Capable of basic judgment.) He also got mad that Robin was the "SUPER" ego.

Yoko Tsuno.

Yoko Tsuno - Somewhat high-strung, plucky, Hot Blooded (Superego)
Pol Pitron - Sad Clown, Butt Monkey, but fairly sensitive and good with kids (Id)
Vic Video - Calm, rational, somewhat of a Deadpan Snarker (Ego)

Film

Beauty and the Beast: the Beast's servants.

Lumiere (Id)
Mrs. Potts (Ego)
Cogsworth (Superego)

The Hangover

Alan (Id)
Phil (Ego) and Stu (replacement Superego when Doug goes missing)
Doug (the actual Superego; unfortunately he's the Macguffin Guy)

The Matrix:

Neo (Id)
Trinity (Superego)
Morpheus (Ego)

Mortal Kombat (movie):

Liu Kang: Blend of reasonable thought and mystic wisdom (Ego)
Sonya Blade: Calculating and desiring of rational explanations for the supernatural (Superego)
Johnny Cage: Fun-loving wise-cracker, flirts with Sonya despite dire circumstances (Id)

National Treasure

Riley (Id)
Ben (Ego)
Abigail (Superego)

Pirates Of The Caribbean

Jack: (Id: Chaos) Will use conversation to avoid bloodshed (especially his own) but is prone to trickery and can resort to some pretty underhanded tricks.
Will: (Super Ego: Order) Traditional, straightforward and honest but stubborn and unyielding to a fault.
Elizabeth: (Ego: Reason) Tries to use the method that best fits the situation and utilizes bluffs and honest diplomacy almost equally.
- While the following are hardly a power trio, The Curse of the Black Pearl sets up a nice id-ego-superego dynamic with, respectively, Jack, Will and Norrington: "[My place is] right here - between you and Jack." (Fun fact: Schopenhauer's analogue of the id was called the Will.)

Star Wars:

In the prequel trilogy:
- Id: Anakin
- Ego: Padme
- Superego: Obi-Wan
In the "original" trilogy:
- Leia: Coolheaded, pragmatic, devoted to duty (superego)
- Luke: Balances the two (ego)
- Han: Impatient, hotheaded, operates on instinct (id)

Literature

The Dark Tower had two:

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

The Dresden Files

Lt. Murphy: Dutiful Policewoman (superego).
Harry Dresden: Somewhat rebelious, but never for the sake of rebeliousness alone (ego).
Thomas Raith: Hedonistic, pleasure-seeking. Hell, he feeds off of emotions just to live (id).

Flowers For Algernon

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

The later books of the General series by {{S.M. Stirling}} and David Drake.

The computer known as Center (Superego)
The "ghost" of Raj Whitehall (Id)
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.

Harry Potter:

Harry: Mediator. Runs a bit "cooler" than Ron most of the time, but not as cool as Hermione. (Ego)
Ron: Practical, but tends to run "hot." (Id)
Hermione: The rational, cautious voice. (Superego)

Ice Age:

Manny: The unofficial leader who is just an everyman trying to get by. (Ego)
Diego: The Stoic as well as the resident Heel Face Turn guy. (Superego)
Sid: Occasional Cloud Cuckoo Lander who can have bouts of clarity at times. (Id)

Lord Of The Flies

Ralph: Ego, wants to get off the island but is practical about it
Piggy: Superego, smartest and only one who remains logical throughout
Jack: Id, instinctual and acting on the most immediate need

Lord Of The Rings, the Three Walkers

Aragorn: Ego
Legolas: Superego
Gimli: Id (in the movie, anyway)

The Mystery Kids:

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

The Other Boleyn Girl keeps it all in the family:

George Boleyn: Manages between Mary and Anne. Follows the family norms for the most part but also sometimes goes after his own desires. (Ego)
Anne Boleyn: Passionate, prone to temper-tantrums, driven by her desires (Id)
Mary Boleyn: For the most part, follows what society and her family expects of her. (Superego)

The Spiderwick Chronicles

Mallory: Ready to fight, somewhat grumpy (Id)
Jared: Both mischievous and level headed (Ego)
Simon: Calm and pacifistic (Superego)

Star Wars Expanded Universe: X-wing: Starfighters over Adumar''

On a mission to a world that at first seems to have the 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 The Eeyore.
- 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."

Twilight

The main love "triangle"
- Hot Blooded Jacob (Id)
- Edward The Stoic (Ego)
- Future Magical Girl Bella (Superego~~tistical~~)
The Cullen women:
- Alice (Id, relatively)
- Rosalie (Ego)
- Esme (Superego)

Wheel Of Time

Perrin(Superego)
Rand (Ego)
Mat (Id)

Interestingly enough due to Character Development these change to

Perrin (Id)
Rand (Superego)
Mat (Ego)

Live Action TV

Ace Lightning

Sparx - Fiery, energetic, always jumping into action without thinking, cocky - Id
Ace Lightning - Idealistic, naive,courageous, fails to understand human emotions, the leader - Ego.
- (Except when he gets human emotions and goes a bit Id on us).
Random Virus -Has a Split Personality and is constantly struggling between the two. - Superego.

Also for the human characters.

MarkHollander - Main protagonist. Helps the Knights to stay in hiding. Sometimes really just wants a normal life but works out that ain't gonna happen - Ego
Chuck Mugel Eats like whoa, intelligent, later jumps at the call and becomes the techno geek of the team - Id with a twist of superego.
Samantha Thompson - Protagonist's girlfriend, kind of wants the weird life events that are taking place in front of her, but hidden. - Superego.
- Samantha later replaced by Kat Adams who's more - Ego.

The Adventures Of Brisco County Jr

Brisco County Jr. - leader (Ego)
Socrates Poole - thought (Superego)
Lord Bowler - action (Id)

American Idol

Randy Jackson: provides a balance between the two extremes (Ego)
Simon Cowell: Critical, finds something bad to say 90% of the time (Superego)
Paula Abdul: Supporting, finds something good to say 90% of the time (Id)
- So now that there are four judges, how does this hold up?

Angel The Series (in the first couple of seasons):

Wesley - Intellectual, ineffectual (Superego)
Angel - Leader, balanced (Ego)
Cordelia - Insensitive, acquisitive (Id)

Bonanza:

Little Joe (Id)
Hoss (Ego)
Ben or Adam (Superego)

Buffy The Vampire Slayer:

Willow: Academic, reasonable (Superego)
Buffy: Both fighter and tactician (Ego)
Xander: Impulsive, pleasure-seeking (Id)

Burn Notice:

Sam: Moralizer (well, relatively), ex-Navy SEAL, consistent (Superego)
Michael: Ex-CIA, mediates between Sam and Fi (Ego)
Fiona: Former IRA Agent, smuggler, on a short fuse (Id)

Degrassi Junior High/Degrassi High

Snake: Points out when plans will go wrong; most morally conscious. (Superego)
Joey: Immature, comes up with stupid plans, tends to get them in trouble. (Id)
Wheels: Goes along with Joey up to a logical point. (Ego)
- Joey and Wheels often switch roles

Doctor Who (original series season 7):

The Doctor: Moral but selfish, wanted the Brigadier to leave him alone (his characterization changed significantly in later seasons) (Ego)
Liz Shaw: Intellectual, almost emotionless and selfless (Super-ego)
The Brigadier: Suspicious, paranoid and xenophobic (as with the Doctor, his characterization changed later) (Id)

(This observation comes from an article in Doctor Who Magazine which compared the Doctor to Kirk, Liz to Spock and the Brigadier to McCoy.)

Doctor Who (original series seasons 16-8):

The Doctor: Wild and emotional, often stopping the latest Monster Of The Week for the fun of it rather than a desire to save lives. (Id)
Romana: Intensely moral and often critical of the Doctor (and everyone else she meets). (Superego)
K-9: A Robot Buddy governed completely by logic. (He tends to side with Romana.) (Ego)

Doctor Who (current series):

The Doctor: Cerebral, must unravel the mystery (Superego).
Rose or Martha: Gets distracted by the weird stuff around her, but knows how to pull it together at the appropriate moment (Ego).
Captain Jack Harkness: Loves the weirdness of it all and spends most of the episode flirting with anything that moves (Id).
(These characterizations only really apply whenever Jack shows up. The Doctor, Rose, and Martha tend to be all over the place.)

Doctor Who (The villains in The Talons of Weng-Chiang)

Magnus Greel, alias Weng-Chiang: Makes the decisions (Ego)
Li H'sen Chang: Tries to remind his master that some things are not workable (Superego)
Mr. Sin: Glories in destruction For The Evulz (Id)

Full House

Jesse: Obsessed with image (Id).
Joey: Obsessed with humor (Ego).
Danny: Obsessed with cleanliness (Superego).

Game Damage

Yahtzee (Superego)
Yug (Ego)
Matt (Id)

Gilligans Island

Skipper (Id)
Gilligan (Ego)
Professor (Superego)

H 2 O Just Add Water:

Cleo (Ego).
Rikki (Id).
Emma (Superego).

Heartbeat:

The main police officers form a Power Trio whose lineup changes often:
- The village bobby (Rowan, Bradley, Crane, Walker, Mason): Courageous, heroic, known to go against protocol (Id).
- PC Bellamy (later Wetherby): Friendly, less disciplined than Superego, but doesn’t break rules (Ego).
- The sergeant (Blaketon, Craddock, Nokes, Merton, Miller): Their boss who enforces police rules (Superego).
A few seasons in, a second Power Trio formed for the subplots, this one being of the Comic Trio variety:
- Claude Greengrass (later Vernon Scripps, Peggy Armstrong): Always making get-rich-quick schemes (Id).
- David Stockwell: Warm-hearted, has good morals, but naïve enough to follow Id (Ego).
- Bernie Scripps: Ego's wise old mentor who sees flaws in Id's schemes (Superego).

House MD:

Cuddy: Emotional, confrontational, flirtatious (Superego)
Wilson: Mediator and go-between, caring but crafty (Ego)
House: Hyperrational, scientific, emotionally stunted Dr Jerk (Id)
Cameron: Emotionally oriented, empathetic, often butts heads with Foreman (Id)
Chase: Laid-back, balances logical thinking and emotions/spirituality (Ego)
Foreman: Rational, cerebral (hey, he's not a neurologist for nothing), less emotionally expressive (Superego)

How I Met Your Mother

Barney: Magnificent Bastard of the boys. (Id)
Marshall: The sensitive giant. (Superego)
Ted: Right between the two. (Ego)

iCarly

Carly (Ego with some Superego tendencies)
Sam (Id)
Freddy (Superego)

Law And Order:

Jack McCoy: Brash, passionate, rule-bending firebrand. (Id)
Claire/Serena/all of them: Calmer, less experienced, less cynical lawyer; occasionally The Watson. (Ego)
Schiff/Branch: The Boss, serving as the voice of reason from behind a desk. (Superego)

Madan Senki Ryukendo

Kenji/Ryukendo: Id; naive and innocent, charges into battle.
Fudou/Ryugunou: Superego; calculates all his strategies.
Koichi/Ryujinou: Ego; acts on motivation, but thinks things through.

M*A*S*H (Seasons 4-5)

Hawkeye: Id
B.J.: Ego
Frank: Superego, sadly.
- Margaret may be a more consistent fit for Superego. Her favorite words seem to be "Absolutely not."

MST 3 K actually has two:

Joel or Mike and the robot pals:
- Crow T. Robot: Silly, child-like, often the butt of jokes and prone to spontaneously making costumes and believing himself to be characters from the movies they watch. (Id)
- Tom Servo: A commanding presence, often makes the most erudite and literary riffs, frequently manages to put one over on Crow. Once scored higher than an omniscient being on an IQ test. (Super-Ego)
- Joel/Mike: Acts like a father/big brother to the robots, generally mediates between them, and often gets the better of both. (Ego)
In the Sci-Fi seasons, the Mads:
- Professor Bobo: A Gorilla from a world where apes evolved from men. Can lift about ten times his own body weight, obsessed with bananas, parasitic insects and flinging his own filth. (Id)
- "Brain Guy": Exactly What It Says On The Tin. A Sufficiently Advanced Alien who carries around his brain in a pan with the body he claims he doesn't have. (Super-Ego)
- Pearl Forrester: Relentlessly browbeats and overpowers them, playing off their stupidity for her own purposes. (Ego)

The Muppet Show:

Gonzo: Daredevil, thrill-seeking, girl-crazy (Id).
Fozzie: Alternately sensible and comical (Ego).
Kermit: The Only Sane Man (Superego).

Parker Lewis Cant Lose:

Parker: Leader (Ego)
Jerry: smart (Superego)
Mikey: cool (Id)

Power Rangers Dino Thunder

Conner: The Hero, soccer jock, reluctant red (Superego, switches to Id)
Ethan: The Smart Guy, geek with capital G (Id, switches to Superego)
Kira: Action Girl, punk-lite musician (Ego, favoring whoever isn't being an idiot)

Shane, Dustin and Tori from Power Rangers Ninja Storm are more of a Three Amigos situation; there's little to no conflict between them, just the usual temporary disagreements you get among best friends. In the first episode, Dustin and Shane designate Tori as the "responsible" one, though.

Pushing Daisies

Emerson: Id. Says whatever's on his mind. Appears more concerned about money than morality; seems willing to flex morals when it benefits him. Likes eating and drinking.
Chuck: Superego. By far the best-read of the trio. Concerned about what's right, fixing things, finding solutions. (Considerable overlap with ego — she's very compassionate, a quality which the other two often lack, and is much better at relating to people than either abrasive Emerson or aloof Ned.)
Ned: Ego. Mediates between the two. Takes input from both; but, since the power is his, the final decisions tend to be also. (Considerable overlap with superego — he often overthinks things, and can be distant.)

Red Dwarf:

Rimmer: Ego
Kryten: Superego
Cat: Id

Lister, the one portrayed as the most 'normal', is a mix of all three. Holly is just bonkers.

The Sarah Connor Chronicles:

Sarah Connor (Id)
John Connor (Ego)
Cameron (Superego)

Skins:

Cook (Id)
J.J. (Ego)
Freddie (Superego)

Star Trek The Original Series:

Kirk: Leader (Ego)
Spock: reason (Superego)
McCoy: emotion (Id)

According to Shatner's book Get A Life, he met a woman who had multiple personalities, including the three above. Her psychologist said they performed the exact functions listed above.

Star Trek The Next Generation:

Id: Worf (and before him Tasha Yar) always wanted to attack; sometimes Riker got involved in matters he shouldn't have (usually romantic/groinal in nature) and dragged the crew in after him.
Superego: Data, usually. (Sometimes it was Laforge saying why something wouldn't work, but he usually TechnoBabbled himself into a solution involving the Deflector Dish or polarity reversal.)
Ego: Picard.

Supernatural:

Dean Winchester: Leader, ladies' man, street-smart, mechanically-minded, gluttonous loud, smart-aleck, rough, rather goofy. (Id)
Sam Winchester: Book-smart, logical, empathetic, moral, proud, polite, reserved, and quieter than Dean. (Superego)
Bobby Singer: The Mentor (The Obi Wan), experienced, much calmer than Sam and Dean, balances street- and book-smarts, and can get the boys to stop quibbling long enough to figure out a plan of action. (Ego)
Season 4:
- Sam Winchester: Rash, impulsive, hell-bent on killing demons. (Id)
- Dean Winchester: Confused, well-intentioned, penitent, trying to reach a balance. (Ego)
- Castiel: Aloof, unemotional, obedient, objective (though doubt makes him overlap with the Ego eventually). (Superego)

Super Sentai: Jyuuken Sentai Gekiranger (pre-Violet)

Retsu; Fatastic Technique, Geki-Blue (Superego)
Ran; Honest Heart, Geki-Yellow (Ego; is currently the Captain of the group)

and

Jan; Unbreakable Body, Geki-Red (Id; also the seasons Tarzan wannabe)

The Office (US)

Micheal (id)
Dwight (superego)
Jim (ego)

Tom Corbett, Space Cadet:

Astro (id): Naive, emotional, expressive, and impulsive Genius Bruiser with a short fuse.
Roger Manning (superego): Sarcastic and cynical Deadpan Snarker, the complainer, and with a super ego to boot. Always the first to say that something won't work
Tom Corbett (ego): The rational and level-headed one, The Smart Guy, The Hero, the Standardized Leader

Top Gear:

James May: The Smart Guy and often teasingly referred to as Captain Slow, because he does most things slowly and carefully, and often scolds the other hosts for being careless. Has a tendency towards Gosh Dang It To Heck and Unusual Euphemism. Also, he plays piano. Definitely the superego.
Jeremy Clarkson: A loud, brash Smug Snake. He's rude, likes explosions and luxury cars, is exceedingly vocal in his dislikes, and let's not get into his politics. Almost certainly the id.
Richard Hammond: A risk-taking adrenaline junkie prone to Cluster F Bombs... also most likely the id. But he's somewhat nicer than Clarkson and less pushy, and also seems to have a bit more of a rapport with the other two than they have with each other, so he may narrowly qualify as the ego.

Torchwood:

Gwen: The Everyman, er, woman...not that anyone on this show cares. (Every few episodes, Tosh fills this role; this contributor can only remember one conversation between them, and that was mostly Subtext). (Ego)
Jack: An immortal, level-headed Sufficiently Advanced Alien. (Superego)
Owen: When The Captain can turn a stopwatch into a sex toy and you're the resident Lovable Sex Maniac, what does that make you? (Id.)
There's a reason Ianto gets so little screentime...
Alternatively, one can see Captain Jack as The Kirk/ego, the (usually) emotionally restrained, matter-of-fact Ianto as The Spock/superego and the argumentative, passionate Owen as The Mc Coy/id.

Newspaper Comics

Dilbert

Dilbert: Rational, logical, moral. (Superego)
Wally: Selfish, lazy, lecherous. (Id)
Alice: Industrious, short-tempered, less self-centered than Wally. (Ego)

Professional Wrestling

Team Xtreme, when they existed.
- Matt Hardy, usually coming up with the plans and trying to keep the other two safe and under control, playing the Superego.
- Jeff Hardy, the daredevil who went for the pleasure and excitement of the moment consequences be damned, definitely the Id.
- Lita, Action Girl who was almost in the exact middle of the brothers so far as personality, and more than once had to break up a fight between them, being the Ego.

Role Playing Games

Perhaps the most core group of characters to the story of Baldurs Gate:

Minsc: Butt-kicking for goodness! (Id)
Jaheira: Be careful, child. (Superego)
The Protagonist: Quiet, both of you! (Ego)

A few other trios naturally form from the npc's:

Anomen: Hot-heated, stubborn, and proud to a fault. (Id)
Cernd: Detached, enigmatic, rational. (Superego)
Keldorn: Older, weary, driven. (Ego)

And of the romancable female characters:

Aerie: Driven to do the right thing, no matter what. (Id)
Viconia: Bitterness tempered by calculated ruthlessness. (Superego)
Jaheira: Honest, mixes regret with firm reason. (Ego)

Baten Kaitos Origins

Milly: Impulsive sheltered girl who is eager to see the world. (Id)
Guillo: Deadpan Snarker puppet thing who often acts as the voice of reason. (Superego)
Sagi: Young protagonist who often has to sort the other two out when they quarrel. (Ego)

Tabletop Games

Warhammer 40000: Gaunt's Ghosts has a few:

Colonel-Commissar Gaunt, leader and tries to balance the needs of discipline with the needs of his men (Ego).
Major Rawne, calculatingly ruthless and pragmatic (Superego).
Chief Dorden, cares about the men under his care rather than notions of discipline (Id).
- Also, a few supporting trios:
  - Agun Soric (Ego)
  - Corporal Meryn (Superego)
  - Gol Kolea (Id)
  - Commissar Hark (Ego)
  - Sergeant Feygor (Superego)
  - Colonel Corbec (Id)

Theater

1776

John Adams - "Obnoxious and disliked," wants independence now and for everyone, loud, pigheaded, pushy (Id)
Benjamin Franklin - Witty, raunchy, realizes that idealism will not prevail, about the only person who can stand Adams for more than ten minutes (Ego)
Thomas Jefferson - quiet, passive, patriotic but really would rather see his wife than write the Declaration of Independence (Superego)

Video Games

Disgaea

Laharl: Ambitious and irritable Noble Demon (Id)
Flonne: Laharl's self-appointed guardian angel and Love Freak (Superego)
Etna: Deadpan Snarker that is usually the first to call either of them on their immaturity (Ego)
- Don't forget Gordon, Jennifer, and Thursday. The game supports this by giving all three of them a 100% chance of team attacks when together.

The Elder Scrolls, The Tribunal from Morrowind:

Almalexia (Id)
Sotha Sil (Superego)
Vivec (Ego)

{{Metal Gear Solid 2: Sons of Liberty}}

Snake: cool, calm and collected (Superego)
Otacon: stressed, uneasy and ungathered(Id)
Raiden: mysterious as snake and a bit emotional as otacon (Ego)

Eternal Darkness has its Ancients, a set of gods who despite being mortal enemies have three so closely associated they fit here nicely:

Chattur'gah: God of Strength and Matter, brutal and the least mind-focused, overpowers Xel'lotath. (Id)
Ulyaoth: God of Magic and Spirit, the most intelligent - and arrogant about it, overpowers Chattur'gah. (Ego)
Xel'lotath: Goddess of Sanity and Insanity, brooding and, quite suitably, insane, overpowers Ulyaoth. (Superego)

It's hinted that there are in fact five Ancients. If the fifth were to be confirmed, throw in Mantorok and this could expand into a Five Bad Band.

Final Fantasy X-2:

Yuna: Leader. (Ego, tending to Id occasionally)
Rikku: Genki Girl ditz. (Id)
Paine: Snarky monotone warrior. (Superego)

Fire Emblem 7 (Or just Fire Emblem in the states):

Hector (Id)
Eliwood (Ego)
Lyndis (Superego)

Kingdom Hearts: The series makes a theme of this trope, with most of the main cast belonging to at least one trio, and the sword/shield/staff analogies in each (even if the sword/shield/staff trinity don't always correspond to the ego/id/superego)

Sora: Leader (Ego)
Donald: Smart, but feisty (Id)
Goofy: Brawny, but wise (Superego)
Sora: Well-meaning but impulsive. (Id)
Riku: Plans and calculates. (Ego)
Kairi: The moral center. (Superego)
Axel: (Ego)
Roxas: (Id)
Namine: (Superego)

Persona 3, Evil Counterpart group Strega:

Takaya: Group leader, Nietzsche Wannabe, charismatic. (Ego by role, Superego by characterization)
Jin: Ally of Takaya, less prone to extreme courses of action. (Superego by role, Ego by characterization)
Chidori: Angsty Elegant Gothic Lolita. (Id)

Ratchet And Clank:

Ratchet: Ego
Clank: Superego
Qwark: Id

Rival Schools

Taiyo High:
- Batsu: Hot-headed, brash (Id)
- Hinata: Reasonable and outgoing (Ego)
- Kyosuke: Stickler for rules and regulations (Superego)
Gorin High:
- Shoma: Stubborn, loud, argues with Natsu (Id)
- Natsu: Moral, concerned with neatness, argues with Shoma (Superego)
- Roberto: Reasonable, cool-headed, has to mediate Shoma and Natsu's arguments (Ego)
Gedo High
- Edge: Troublemaker, concerned about falling behind in school (Superego)
- Gan: Obsessed with food (Id)
- Daigo: Leader of school's gang (Ego)
Seijyun Girls High:
- Akira: Calm, rational, able to deal with both Zaki's gang and the gang lead by her brother (Ego)
- Yurika: Polite, neat freak, concerned with morals of her mission (Superego)
- Zaki: Gang leader, confrontational (Id)
Pacific High:
- Roy: Determined to work on improving relations between countries through cooperation (Ego)
- Tiffany: Obsessed about impressing the opposite gender (Id)
- Boman: Deeply religious, concerned about morals and spirituality (Superego)

Rockman

Protoman aka Blues (000): Id
Mega Man aka Rock (001): Ego
Roll (002): Superego

The Doctors are also identifiable as such: Wily (Id), Light (Superego), and Cossack (Ego).

Mega Man X

X: a pacifist, only fights when he has to (Superego)
Zero: the gang's leader outside of missions (Ego)
Axl: The Scrappy, gets on X's and Zero's nerves (Id)

Mega Man Legends

The Casketts:
- Volnutt-Trigger: the main character, can goof off during missions (Id)
- Roll Caskett: Mission Control, tries to keep Volnutt-Trigger on track (Superego)
- Barrell Caskett: The leader of the Casketts (Ego)
The Bonnes:
- Teisel: The leader of the Bonne family pirates (Ego)
- Tron: builds all robots and machines for them, in love with Volnutt-Trigger, has a bad temper (Id)
- Bon: Unable to talk to Teisel and Tron (Superego)

Mega Man Battle Network

Lan, Chaud and Maylu/Mayl
- Lan: Hotheaded, loves to netbattle, hates Chaud (Id)
- Maylu/Mayl: Tries to keep the boys from fighting, in love with Lan (Ego)
- Chaud: Acts calm, cool and collected, always there to tell Lan when he messed up (Superego)
The above 3's netnavi's
- Megaman.EXE: Has a personality similar to Chaud, but hates Protoman.EXE (Superego)
- Roll.EXE: Like Maylu or Mayl tries to keep the guys from fighting (Ego)
- Protoman.EXE: Like Chaud, he is always there to tell Megaman.EXE when he messed up (Id)

Mega Man Star Force

Luna and the boys:
- Depends on what's happening at the present time, but there are 3 lineups
Lineup 1
- Luna: The leader of the group of four, tries to get Geo to come to school in the 1st game (Superego)
- Bud: Loves to eat, a follower of the latest fads (Id)
- Zack/ Geo: Quiet and shy, but not afraid to speak their minds and tell the other two what they think (Ego)
Lineup 2:
- Luna: Reduced to being the damsel in distress (Superego)
- Bud/ Zack: Clueless as to what's going on (Id)
- Geo: Remains calm, cool and collected as he is forced to take charge of the situation as the other 3 are Freaking Out (Ego)
Lineup 3:
- Geo: Takes charge of the situation, but is still not afraid to tell Bud and Zack what he thinks (Ego, leaning towards Superego)
- Bud: The second in command, but he doesn't know what to do when Luna isn't around (Id)
- Zack: Normally sides with Bud (Superego, leaning towards Id)
Geo, Omega-Xis and Mega Man Geo-Omega:
- Geo Stelar: The voice of reason (Ego)
- Omega-Xis: Acts without thinking, requires Geo to pull him back (Id)
- Mega Man Geo-Omega: a combo of the other two, but the main head (Geo) is in charge (Superego)
Pat, Rey, and Gemini Spark:
- Pat (human): Nice and doesn't want to cause trouble. (Superego)
- Rey: Beats up people, and wants revenge on his parents, but he protects Pat from danger. (Id, sometimes Ego)
- Gemini Spark: Reluctant, but goes with what Rey says. (Ego, leaning towards Id)

Sonic The Hedgehog:

Sonic: Strong sense of justice and helping others, but impatient and impulsive (Borderline Id/Superego, but leans more towards Id)
Tails: Mediator, holds things in check and notices things his companions do not (Ego)
Knuckles: Strong sense of duty and commitment, but highly susceptible to manipulation and incredibly hard to gain trust from (Borderline Id/Superego, but leans more towards Superego).

Sonic Heroes, pretty much all of the other characters are broken up into their own Power Trios:

Team Dark:
- Shadow: Brooding and spiteful (Id).
- Rouge: Manipulative, but can work with anything she needs to get the job done (Ego).
- Omega: Computerized thinking (Superego). (In Sonic Adventure 2, Eggman fits the same role being a mastermind)
Team Amy:
- Amy Rose: Smart but incredibly protective and vengeful (Id).
- Big the Cat: Stupid and strong, almost childlike (Superego).
- Cream the Rabbit: Naive but understanding, holds the group together (Ego).
Team Chaotix:
- Espio the Chameleon: Silent but brilliant loner (Superego).
- Vector the Crocodile: Loud-mouthed firecracker (Id).
- Charmy Bee: Upbeat and optimistic, mediator (Ego).

Secret of Mana:

Randi (The Hero, Ego)
Purim (Action Girl/Rebellious Princess, Superego)
Popoie (Tagalong Kid/Black Magician Boy, Id)

Super Robot Wars: The SRX Team:

Ryusei: Hot Blooded Ascended Fanboy (Id)
Rai: Calculating veteran soldier (Superego)
Aya: Team Leader (And sometimes Team Mom, if Ryusei and Rai start arguing) (Ego)

From Reversal and OG Gaiden, Duminuss' Homunculus:

Tis: Group leader, rough and rowdy, a Pettanko. (Id)
Despinis: Painfully shy and a bit kind, a bit too apologetic to fight back (Superego)
Laliar: Mediating Cute Shotaro Boy. (Ego)

Star Fox: The Star Wolf trio:

Wolf O'Donnell: Leader. Hot-headed, easily angered, but honorable and skilled. (Superego)
Leon Powalski: Calm with occasional crazy, but really has no moral standing. (Ego)
Panther Caroso: Seems to get along with others, and respects women. (Id)

The Ultima series - Though the Avatar and Companions can be shuffled a number of ways, the trio that stands out are The Avatar, Iolo, and Shamino. The majority of the games begin with the three of them together, and in all games Iolo and Shamino receive more dialog and plot significance.

Iolo - Bard and the model of Compassion. Tends to instinct and occasional crankiness, artistic temperament, and the only character with a lifelong love through the series. (Id)
Shamino - Ranger and the model of Spirituality. Though he can be a man of action, tends toward meditation, communion with nature and the higher order of human consciousness. (Superego)
Avatar - The Avatar is the role model of all the Virtues, and seeks to apply them in practical example for problem-solving. (Ego)

World Of Warcraft - The major racial leaders of the various factions.

The Horde
- Thrall: Charismatic and far-sighted leader struggling mightily to redeem his race and do the right thing, in spite of impossible odds. Balances the necessities of the Horde with the demands of its people. (Ego)
- Sylvanas Windrunner: Coldly calculating Dark Lady of the Forsaken, breaking her quiet brooding only rarely in moments of extreme hatred and loss, over the terrible events that have created her newfound people. (Superego)
- Garrosh Hellscream: Brash, arrogant young orc with a sense of invincibility-both personal, and of the Horde. Extremely aggressive, often disregarding the counsel of Thrall and the other leaders to act with caution and reason. (Id)
The Alliance
- Varian Wrynn: Hotheaded human king nursing a desire to annihilate the Horde in general and orcs in particular. Not prone to reason or negotiation, and quick to use violence. Id
- Prophet Velen: Quiet, methodical leader gifted with prescience and wisdom, carefully plotting the best course for his people and the rest of the world, no matter what happens. Superego
- Tyrande Whisperwind: Struggles to deal with internal problems before worrying about the Alliance, and attempting to guide the night elves through the new series of endless wars with diligence and respect for the old ways. Ego
Northrend Forces
- Tirion Fordring (Argent Crusade): Trusts in the light and the forces of righteousness with unshakable faith, refusing to employ questionable means on account of the moral ambiguity. Perhaps the single greatest paladin alive. Id
- Darion Morgraine (Knights of the Ebon Blade): Ruthlessly pragmatic fallen hero, liberated from the Lich King's control but still employs all the dark and forbidden knowledge and techniques he learned as a death knight. Does not recognize or value such follies as honor, righteousness, or valor. Only results count. Superego
- Alexstrasza (Wyrmrest Accord): Operates by unknowable rules, wielding an Omniscient Morality License, but also deeply compassionate, and willing to work even with races that have done horrific wrongs to dragonkind.

Valkyrie Profile - The conflicting natures of the three valkyries is not the focus, but it is a central part of their development, especially in the second game. They are even described as separate components of one greater being.

Hrist - Harsh, ditiful, gets the job done. (Superego. Labeled by Freya as the secondary ego.)
Lenneth - Balanced (Ego. Labeled by Freya as the primary ego.)
Silmeria - Emotional, rebelious (Id)

The Legend Of Zelda, even though one of the three is the villain. Probably played straight with the godesses, who represent each of them. It's even kind of Lampshaded because of the Triforce.

Link: The hero, barrer of the Triforce of Courage, always does what seems to be the best, but tends to be fooled into making mistakes by Ganon. (Ego, favouring Superego. However, he sometimes acts like an Id himself)
Zelda: Barrer of the Triforce of wisdom, smart and puts the need of others in front of her own. (Superego, but her alter ego "Tetra" is a boarderline case to "Id")
Ganondorf: Holds the Triforce of power. Wants world domination. (Id, period)

Shin Megami Tensei has a classic case of this in the beginning, though eventually things get worse and the player, as the Ego, is forced to either side with one of the remaining members of the trio against the other, or reject them both. Anyway, while the trio's still together, it goes...

Law Hero (Superego)
Neutral Hero (Ego)
Chaos Hero (Id)

Web Animation

Homestar Runner

Strong Bad: Leader (Id, tending toward Ego)
Strong Mad: Big guy (Id)
Strong Sad: Smart guy (Superego)

Web Original

Sailor Nothing

Himei / Sailor Nothing: Superego (The Quiet One)
Shin / Sailor Truth: Id (stubborn, obnoxious, in-your-face Plucky Girl)
Aki / Sailor Beauty: Ego (relatively normal — emphasis on relatively)

Webcomics

Arthur King Of Time And Space, which also contains an explicit lampshading here

Arthur - The laid-back leader who mediates between the other two (Ego)
Lancelot - ultra-moral and perfectionistic (Superego)
Guenevere - confident, determined, and potentially a source of friction (Id)

Interestingly, this is almost certainly a homage to Star Trek, at least in the space arc, where Guenevere is the ship's doctor and Arthur, as king, is effectively captain of the Excalibur.

Fletcher Apts

Bob: Straight Man Hamster (Ego, tending toward Superego at times)
Doug: Hollywood Nerd Dog (Superego)
Bill: Boisterous Bruiser Goat (Id)

Gunnerkrigg Court:

Coyote (Ego)
Reynardine (Superego)
Ysengrin (Id)

Lagend

Nikol Mimagi(Ego)
Lewk (Id)
Serra Serif (Superego)

Order Of The Stick has two:

The half of it left in Azure City when the Order was split up:
- Celia: Stupid Good Actual Pacifist, out of place in an adventuring party (superego)
- Belkar: Stupid Evil Heroic Sociopath, increasingly The Millstone (until he suddenly wasn't anymore) (id)
- Haley: Pragmatic, Chaotic Goodish, has to deal with the mistakes made by the above two along with everything else (ego)
The half that escaped with the Azurite Fleet:
- Durkon (Superego)
- Elan (Ego)
- V (Id)

Western Animation

Alvin And The Chipmunks:

Alvin: Leader/Chaos (Id)
Simon: Reason (Superego)
Theodore: Middle man (Ego)

Aqua Teen Hunger Force

Shake: Harmful to himself & others, especially Meatwad. Mocks his roommates every chance he gets (Id).
Frylock: Scientific genius. Tries to maintain order (Superego).
Meatwad: Innocent, but takes on bad habits from Shake (Ego).

Avatar The Last Airbender, season 2:

Princess Azula: the leader (Ego)
Mai: the somber, apathetic one (Superego)
Ty Lee: the perky, giggly, girly one (Id)

Ben 10

Ben Tennyson: Over-eager superhero. (Id)
Gwen Tennyson: Brainy, understated, occasionally snarky. (Superego)
Grandpa Max: Authority, knowledge, parental figure, former MIB-type. (Ego)
- Mildly subverted in the sequel Ben 10 Alien Force.
  - Ben: As the leader, tries to do what the hero sees as right, though it may backfire. (Superego or Ego)
  - Gwen: Smart, voice of reason, gets along with both well (Ego or Superego)
  - Kevin Levin: Cocky, daring, an ex-villain (Id)

Biker Mice from Mars:

Vinnie: Fun-loving party animal and wise-cracker, who acts first and apologises later. Always has a grin, even when in pain. Colour scheme: white. (Id)
Modo: Preaches traditional moral values and quotes the wisdom of his grandmother. Gentle-hearted giant whose anger is usually brought on by reflecting on the actions of others. Chooses to wait and plan rather than rushing in. Colour scheme: grey. (Super ego)
Throttle: Cool, wry, with a soft-spot and great understanding for his bros, but with a keen eye for the middle ground between them. Warm-hearted and fun-loving, but in moderation, and serious and commanding as the situation demands. He will generally hold the veto vote between the paths of action suggested by the two extremes. Colour scheme: yellow (Ego)

The Boondocks:

Huey: Moralizing leftist (Superego)
Riley: Gangster thug wannabe (Id)
Robert: Balance (Ego)
- Or Ceasar as the Ego, depending on the version you're looking at.

Danny Phantom

Danny Fenton/Phantom: Leader, usually caught in middle (Ego)
Sam Manson: Rational, levelheaded, cool and cynical (Superego)
Tucker Foley: Fun-loving, comic relief, always tempted by his vice (Id)

Dogtanian And The Three Muskehounds:

Athos: leader and mediator (Ego)
Porthos: hotheaded man of action and appetite (Id)
Aramis: refined aesthete (Superego)

Ed Edd N Eddy:

Ed: Big, dumb, brutish, and easily swayed (mainly Ego, but can be drawn in either direction depending on which other guy is persuading him)
Edd: Neat freak, The Smart Guy (Superego)
Eddy: Schemer, ruled by his desires (Id)

Depending on the nature of the episode, they sometimes switch roles: Rules-obsessed Edd can become the limiting Superego, while Cloud Cuckoolander Ed can act as the impulsive Id. Ironically, when this happens, it puts no-self-control Eddy in the Ego position by default as he tries to reign in the extreme behavior of the other two and keep them focused on their goal (jawbreakers or money.)

Futurama:

Bender: Boozing, smoking, Jerkass robot. (Id)
Leela: Levelheaded, predictable Action Girl. (Superego)
Fry: The Arthur Dent. (Ego)

Gargoyles loves to mess around with this: The "Trio"

Broadway (Id)
Lexington (Ego, leading to Superego)
Brooklyn (Superego)

The Grim Adventures Of Billy And Mandy

Grim: More or less trying to survive being stuck with two insufferable children (Ego).
Billy: Stupid and impulsive (Id).
Mandy: Intelligent and deadpan (Superego).

Megas XLR:

Coop - Impulsive Genius Ditz, usually the one to get them in trouble. Id.
Kiva - Always trying to hold Coop back from his id-riffic rampages. Superego.
Jamie - A fairly normal guy (if unambitious), although he isn't completely immune to flights of fancy. At the very least, he sometimes tries to talk Coop out of his more dangerous exploits, in favor of going to look for the Planet Of Hot Amazon Women. Ego.

The Marvelous Misadventures of Flapjack

Flapjack: Adventurous keet. (Id)
K'nuckles: Older anti-role model. (Ego tending towards Id)
Bubbie: Sensible team mom. (Superego)

The New Batman Adventures: Two-Face gains a third personality making him a one-man Power Trio:

Harvey Dent: normal personality that is timid and easily bossed around (ego)
"Big Bad Harv": violent criminal made from years of repressed anger (id)
The Judge: violent vigilante obsessed with justice (with a court-theme to match) that ultimately plans to kill his bad side (i.e. 'himself''), probably created by guilt from normal side (superego)

The Powerpuff Girls:

Blossom: "commander and the leader" (sometimes Ego, sometimes Superego)
Bubbles: "the joy and the laughter" (same)
Buttercup: "the toughest fighter" (pretty much always Id)

The Raccoons:

Bert: Fun-loving and flighty (Id)
Ralph: Responsible and logical (Superego)
Melissa: Balance, common senese (Ego)

South Park

Stan: Tries to find the good in every situation (Ego).
Kyle: Smart. More or less has the same intentions as Stan, but often depressed,also has a short temper (Superego).
Cartman/Kenny: Impulsive, sometimes borderline psycho (Id).

Thomas The Tank Engine:

The tank engines:
- Percy: Youthful and mischievous (Id).
- Thomas: Sometimes mischievous, but more mature than Percy (Ego).
- Toby: Mature, wise, well behaved (Superego).
The tender engines:
- James: Headstrong, temperamental and arrogant (Id).
- Henry: Warm-hearted, reasonably well behaved (Ego).
- Gordon: Stern, uncompromising, clashes with James (Superego).

Time Squad

Buck Tuddrussel (id)
Larry 3000 (superego)
Otto (ego)

Transformers Animated — Blitzwing is the power trio.

Icy (superego) - calm, collected, rational
Hothead (id) - aggressive, uncontrolled, passionate
Random (ego) - creative, flexible, moderates between the first two

Transformers Armada had three sets:

Optimus Prime (Benevolent Boss) - Ego
Red Alert (The Medic with Spockish tendencies) - Superego
Hot Shot (The Bumblebee) - Id

The bad guys too:

Demolishor (Dim, but relatively sane) - Ego
Starscream (Something of a Noble Demon) - Superego, with Id tendencies
Cyclonus (Somewhat Axe Crazy) - Id

And though nobody likes to acknowledge them....

Rad - Ego
Alexis - Superego
Carlos- Id

Wild West C.O.W. Boys of Moo Mesa:

The Cowlarado Kid: Impulsive, lively, ruled by his heart and sexual urges, often prone to wild leaps of fancy. (Id)
Dacowta: Slow and steady, extremely level-headed and serious traditionalist. (superego)
Marshall Moo Montana: Warm-hearted and fun-loving, but in moderation, and serious and commanding as the situation demands. Fulfills the Captain Kirk role. (Ego)
- Interestingly, this trio adopts a colour scheme for each character: yellow for the neutral Marshall, cool grey for Dacowta, and warm cream for Cowlarado. This scheme is revisited in Biker Mice From Mars...

Mythology

Greek and Roman Myth

Zeus/Jupiter: Impulsive, greedy, prone to huge temper-tantrums, entirely motivated by his sex drive (Id).
Poseidon/Neptune: Depending on the mood, could be reasonable or nuts. But in general less impulsive than Zeus and less rigid than Hades. (Ego)
Hades/Pluto: Brooding, morbid, obsessed with rules and laws. (Superego)

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