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[[quoteright:306:[[Series/StarTrekTheOriginalSeries http://static.tvtropes.org/pmwiki/pub/images/trek07_3293.jpg]]]]
[[caption-width-right:306:[-[[TheKirk Jim]], [[TheMcCoy Bones]], and [[TheSpock Spock]].[[note]]Ego, id, and superego, respectively.[[/note]]-] ]]
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Among a PowerTrio of the "two Foils + balance" variety, one of the most common subtropes has the three characters have psychological positions based on the [[AllPsychologyIsFreudian Freudian]] idea of the Id, the Ego and the Superego.

[[UsefulNotes/SigmundFreud Freud]] defined the human psyche as consisting of three parts:
* the Id, which represented emotional and instinctual desires;
* the Superego, which represented the logical and intellectual reasoning (or rules and social conventions, which is how Freud actually used the term);
* the Ego, which reconciled the Id and Superego.

Likewise, the Freudian Trio consists of three characters: one who acts [[TheMcCoy emotionally and instinctively]], one who acts with [[TheSpock cold, passionless logic]] and one who [[TheKirk reconciles the two conflicting ideals]].

Sometimes the [[RedOniBlueOni Id/Superego dynamics play out with just two characters]], but in those cases the representatives of opposing sides must learn to negotiate with each other. In a PowerTrio, they are free to be more extreme, and it falls to TheKirk to [[MessianicArchetype lay the smack down]] and keep the group integrated. The leader of a Freudian Trio may not necessarily be TheKirk but often is. The second most likely to be the leader is TheMcCoy, the most passionate and caring one. It might be that TheHero is the emotional [[TheMcCoy id]], his [[TheLancer lancer]] is the practical [[TheKirk ego]] and TheSmartGuy is [[TheSpock superego]].

Basically if TheLeader is the superego he'll be the Mastermind; if the ego, most likely the Levelheaded; and if he's id, most likely the Headstrong. Each can be the Charismatic as this type leads by example.

A ComicTrio uses the same ingredients, but the leader is crazy, the action one is stupid, and the thinking one is powerless. Depending on the {{fandom}} and its tendency for {{shipping}}, a Freudian Trio may easily become a OneTrueThreesome. Compare also GoodAngelBadAngel if you see the "Shoulder Devil" as the Id, the "Shoulder Angel" as the Superego and the person whose shoulders they stand on as the Ego.

The EvilDuo is a {{Foil}} to this arrangement consisting of two villains who show how the Trio fails to function without one of the members. The most common form is with one Id villain and one Superego villain, but an Id[=/=]Ego pair or even an Ego[=\=]Superego pair is not unheard of.

Can overlap with FourTemperamentEnsemble: choleric and sanguine are both impetuous enough to be Id; melancholic and sometimes phlegmatic can be Superego, for being a good moral voice. Phlegmatic, its blend with sanguine, and eclectic are all reconciliatory enough to be Ego. With the correct gender makeup, they can also be the ThreeAmigos

For a more in-depth look at [[UsefulNotes/SigmundFreud Freud's]] theories, check out UsefulNotes.IdSuperegoAndEgo.

* FreudianTrio/AnimeAndManga
* FreudianTrio/ComicBooks
* FreudianTrio/FanFic
* FreudianTrio/{{Film}}
* FreudianTrio/{{Literature}}
* FreudianTrio/LiveActionTV
* FreudianTrio/{{Mythology}}
* FreudianTrio/NewspaperComics
* FreudianTrio/OnlineRoleplay
* FreudianTrio/ProfessionalWrestling
* FreudianTrio/TabletopGames
* FreudianTrio/{{Theater}}
* FreudianTrio/VideoGames
* FreudianTrio/WebMedia (includes Web Comics)
* FreudianTrio/WesternAnimation
* FreudianTrio/RealLife