* ''Franchise/AceAttorney'' has a number of these characters, to the point where your average ditz nearly always is smarter than they look.
** In the original game, [[spoiler:the supposedly beyond-senile Yanni Yogi (a ShoutOut to [[Anime/YuGiOh Yami Yugi]]) faked permanent brain damage for fifteen years before trying to exact revenge and get away with it.]]
** Case 5, in the DS remake, has [[spoiler: Police Chief Gant. His guise of a lovable, laughing buffoon hides not only a razor-sharp mind, but his true personality of a ruthless genius willing to kill one of his own officers, and blackmail another by framing her sister, in order to put away a serial killer.]]
** In ''Justice For All'', [[spoiler: Ini Miney from case 2 and Matt Engarde from case 4 are both smarter (and more sinister) than they appear to be at first glance.]]
** In ''Apollo Justice: Ace Attorney'', [[spoiler: Phoenix Wright himself shows a bit of this trope.]]
** [[spoiler: Dahlia Hawthorne]] from ''Trials and Tribulations''. [[spoiler: a VERY devious girl who [[BitchInSheepsClothing hides her true self behind a sugary sweet personality]], and not once but ''twice'' in the game. And bear in mind she's ''dead'' by the second encounter.]]
** Done in ''Ace Attorney Investigations'' with [[spoiler: the ditzy bubble-blowing Cammy Meale, the jovial Ernest Amano, and the elderly Quercus Alba. They're all murderers or accessories to murders, and all work in the same smuggling ring.]] Since veteran players of the series will know to look for the trope, the game even plays with your head a little with [[spoiler: the delightful, energetic, and oblivious Colias Palaeno--who never even comes under suspicion.]]
** And in the sequel, ''Gyakuten Kenji 2'' (AKA Ace Attorney Investigations: Prosecutor's Path) we have [[spoiler:Sōta Sarushiro (Simon Keyes in the english FanTranslation), a shy and meek individual Edgeworth defends in the second case. In the climax, TheReveal kicks in and it turns out he's actually the brilliant and cruel mastermind behind the main events of the game.]]
** From ''Dual Destinies'' we have [[spoiler:detective Fulbright (aptly nicknamed Fool Bright by prosecutor Blackquill). For most of the game he looks like a regular detective who strongly believes in justice. It turns out he is actually a spy who killed the real Fulbright, Metis Cykes (Athena's mother) and Clay Terran. He can also hide and pretend emotions (almost) perfectly.]]
* Most of the characters of ''VisualNovel/NineHoursNinePersonsNineDoors'' do this in some way, shape, or form. [[spoiler: Particularly June and Santa, who are Zero and her brother respectively.]]
* Zelos from ''VideoGame/TalesOfSymphonia'' is highly intelligent, skilled at manipulation, [[spoiler:and has severe self-loathing stemming from some ''severe'' ParentalAbandonment, not to mention being [[XanatosSpeedChess a triple agent who's playing the party, Cruxis and the Renegades against each other to ensure he's got a shot of joining whoever's the victors]]]]. He hides all of this under a facade of being a happy-go-lucky HandsomeLech who seems to have made it his life's mission to hit on every female in existence and antagonise [[{{Tsundere}} Sheena]].
* In ''WorldOfWarcraft Wrath of the Lich King'', the Lich King uses this trope as part of an extremely effective XanatosGambit.
* When Raven joins your party in ''VideoGame/TalesOfVesperia'', he presents himself as a goofy but skilled middle-aged HandsomeLech who imparts nuggets of wisdom that no-one asked for and constantly complains about how he can't keep up with the other, much more youthful party members. [[spoiler:In fact, he's TheMole for the local SmugSnake. His true identity is that of a cunning, experienced and suave knight who, under his "Raven" persona, managed to infiltrate the highest levels of the Dahngrest government over ten years]].
* The entire ''VideoGame/TeamFortress2'' team, all of whom the Announcer refers to as having "below average" intelligence, outside the attack classes, could count. Demoman seems like a friendly, reasonable guy when he's not drunk, based on the War update comic, and it's hard to be stupid and make five million dollars in one year. Heavy has a Ph.D. in Russian literature, and if the Russian "Meet The Heavy" is any clue, is much more eloquent in his native language. Engineer has 11 "hard science" Ph.D.s, which speaks for itself. "Meet The Medic" revealed Medic is indeed a trained doctor, though he's barking mad and he lost his license for stealing a patient's skeleton. Sniper managed to rig a tribal shield to electrify its attackers, and while not as smart as the rest, doesn't seem "below average." Spy had the resources, intelligence, contacts, and capability to thoroughly research a "YourMom" joke, in addition to being able to do a spot-on impression of the voice of all eight other team members, and seeming like a completely civil, intelligent gentleman off the battlefield. Below average, indeed.
** Pyro could be too, as most of when he/she's trying to speak under the mask sounds somewhat condescending.
*** A later'Meet the Pyro' video revealed that the he is utterly insane and views the world as a [[SugarBowl happy, colourful place]] where she skips around dishing out lollipops and rainbows to adorable cherubs, where in reality it is causing pain and suffering by shooting gouts of searing flame at his enemies. Since she has such a warped view of reality the smart/dumb scale doesn't really apply to it.
**** In the new online comics series, it is show that when not being a mercenary, Pyro is a successful businessperson, being responsible for a company's "best quarter ever," thanks to their new CEO, Pyro. He still sees everything as a cartoon and still only hears gibberish, though.
* [[spoiler:Levin]] from ''SoulNomadAndTheWorldEaters'' appears to be a complete idiot...up to the point [[spoiler:where he stabs your OldMaster dead out of the blue and reveals he's the last world eater; he's helped you because you've been killing off -- or given him an opening to kill -- everyone who was ever a challenge to his [[AGodAmI future bid for godhood]], and every single time he left the party to wander around and came running back dragging trouble behind him, he did it entirely on purpose.]]
* Resident hungry ghost Yuyuko Saigyouji, of ''VideoGame/{{Touhou}}'', definitely fits the bill. It's even a possibility she's actually even smarter than TheChessmaster Yukari.
** During her appearance in ''Imperishable Night'' she keeps talking about the incident-solving as a "wonderful midnight snack tour across the land" and have an overall very carefree attitude towards the whole thing. But if you look at her dialogue carefully, it's very much implied she already figured out everything beforehand, and each "dish" is a metaphor for every enemy they're facing.
** She continues this in ''Ten Desires''. After picking a fight with the player character [[ItAmusedMe for no real reason]], she then quickly points them out to the right direction despite never actually leaving her mansion.
** Moriya Suwako fits the bill as well. She looks and behaves like a CheerfulChild but is actually a PhysicalGod [[OlderThanTheyLook well over]] [[ReallySevenHundredYearsOld 2000 years old]]. It's been all but stated outright that her childishness is an act and her appearance might very well be a shape she has assumed to make her act more convincing.
* Guildmaster Wigglytuff in ''VideoGame/PokemonMysteryDungeonExplorers of Time/Darkness'': a {{Cloudcuckoolander}} who looks like a big pink bunny...and one who gives Team Skull a well-deserved beatdown.
** In the Sinnoh region of the main Franchise/{{Pokemon}} games, Dr. Footprint can essentially read Pokemon's minds. Some of the more slow or dumb Pokemon will express simple thoughts full of "hnurr" pauses - except when they suddenly share a complex and grammatically correct sentence or two about how people and other Pokemon assume that they don't think much because they don't speak up often. They don't seem annoyed or insulted though.
* [[spoiler:Shuji Ikutsuki]] relies heavily on this to fool ''{{Persona 3}}'''s protagonists into [[spoiler:bringing about the Fall for him.]] A harmless character known for [[spoiler:bad jokes]] becomes TheChessmaster in one fell swoop..
** And in ''VideoGame/{{Persona 4}}'', [[spoiler:Adachi]] plays much the same role. People who have played ''VideoGame/{{Persona 3}}'' will probably be instantly suspicious towards him because of it.
* [[spoiler: Dark Adonis aka Midboss]] and [[spoiler: Seraph Lamington]] from ''VideoGame/DisgaeaHourOfDarkness''. The first appears to be a foppish {{Recurring Boss}} whose sole purpose in the story is to get his ass kicked by Laharl. The second appears to be a hands-off sort of boss content to just walk around his garden while his subordinate plans a coup to conquer reality. In the end, it turns out [[spoiler: Lamington was aware of everything all along. In addition, the entire game is essentially a SecretTestOfCharacter masterminded by Lamington and Midboss to make Laharl a great and compassionate Overlord. Midboss is [[strike: also heavily implied in the end to be]] the temporarily reincarnated form of Laharl's father the previous Overlord]].
* Asmodeus from ''{{Painkiller}}'', an easy-going imp who followed Daniel around for most of the game only to reveal that [[spoiler: he was Lucifer himself, digging holes to allow demons into Purgatory from Hell]].
* A certain character in ''VideoGame/DevilMayCry 3'':
-->[[spoiler:'''Arkham:''' ''You failed, Vergil, because you underestimated humans''\]]
** And this little gem hammers it in:
--->[[spoiler:'''Jester/Arkham:''']] ''I even went so far as to dress up like a complete idiot!!''
* Flay from ''VideoGame/ManaKhemiaAlchemistsOfAlrevis'' has flunked the academy ''three times'', yet he is the one who plans almost all the hijinks that the TrueCompanions get into. ''And they work...'''sometimes'''...''
** He's smart enough to have [[spoiler:conquered half of the world in his ending]] at the very least.
* [[spoiler:Knox Harrington]] in ''VideoGame/VampireTheMasqueradeBloodlines'' first appears as a vampire's excitable, none-too-bright servant who's gotten in over his head while following a target and needs the player character's help. Turns out with the right questions and mental stats (or Malkavian insight) that [[spoiler:he's actually a competent former bounty hunter and his job all along was to get your character to go after the target]].
* [[spoiler:Florian Greenheart]] in ''VideoGame/OverlordII'' pulls this, acting like an [[IneffectualSympatheticVillain Ineffectual Sympathetic]] HeroAntagonist when in truth [[spoiler:he's also Emperor Solarius, ruler of [[TheEmpire The Glorious Empire]]]]. He states that [[spoiler:he keeps up the Florian guise after becoming Solarius in order to subvert the efforts of Queen Fay and the Elven Sanctuary.]]
* Double from VideoGame/MegaManX 4 is a portly rookie Maverick Hunter, who is shown falling over at times in the game's FMV. Despite his goofy appearance and clumsiness, [[spoiler:he is actually a fiercely powerful reploid in a fake body]]
* ''VideoGame/NoOneLivesForever'' has a recurring character - a drunk who shows up in virtually every level, acting like an idiot. He even somehow shows up on an enemy space station, presumably just for the gag...but a post-credit sequence reveals [[spoiler: that the idiot is actually the ''leader of HARM'', the evil organization, spying on you personally]]
* The main character of ''VideoGame/DevilSurvivor'' has some decidedly ditzy dialogue options (especially: "What's 0+2?"), but generally seems to figure things out much faster than he lets on. He even gets called out on it in one of the MultipleEndings.
** It gets [[LampshadeHanging Lampshaded]] earlier than that, too. In the game's prologue, during a brief meeting with Naoya, the main character has the option to guess that the Laplace Mail is predicting the future. Naoya is amazed -- not just because that's correct, but because it's a downright bizarre and even somewhat stupid conclusion to draw from the current evidence.
* In ''VideoGame/TheForceUnleashed'', after losing his eyes, Rahm Kota becomes so depressed that he spends all his time binge-drinking and claims that he has lost his connection to TheForce. It eventually proves that he is still a mighty Jedi Knight, [[spoiler: like when he steals ''Emperor Palpatine's '' lightsaber.]]
** Though, then again, that happened '''AFTER''' his HesBack moment.
* In ''VideoGame/KingdomHeartsII'' and ''VideoGame/KingdomHearts358DaysOver2'', Xigbar shows every sign of being basically a surfer dude PunchClockVillain who just happens to be ThatOneBoss in the former. [[spoiler: ''BirthBySleep'' reveals that he knows ''everything'' about what's going on, even more than the BigBad of the organization, Xemnas, and may have even been at least in part TheManBehindTheMan regarding Xemnas' more Xehanort-y actions]].
* Played straight and averted in ''ArcanumOfSteamworksAndMagickObscura''. In the Museum of Oddities in Tarant there is an exhibition of Gar, "world's most intelligent Orc". It turns out that [[spoiler: Gar is actually a full-bred Human with a strange mutation and just '''pretends''' to be stupid, because people wouldn't put up with an Orc smarter than themselves]].
* It's very debatable as to whether ''VideoGame/SpaceQuest''s Roger Wilco is a lucky IdiotHero or brighter than he looks and just very unmotivated. The BigBad of the sixth and final game muses about this and concludes it's some of both.
* Gaston is ''LuminousArc2'' is such a LargeHam his overacting gets questioned by other characters in the game on occasion, but has a very real, very sensible code of honor and duty to the Queen, and is a legitimately skilled Knight Commander, preferring to lead from the front line.
* In ''VideoGame/DragonAgeII'' the Hawke's "sarcastic"-choice dialogue indicates that personality type uses this and BuffySpeak seemingly as a tactic to lure enemies into a false sense of security, before revealing that their title of "Champion of Kirkwall" is very much deserved and they really ''are'' that dangerous. Cue many an OhCrap moment from their enemy.
-->'''Sarcastic!Hawke''': Oh I'd make a terrible slave. For one thing, '''I talk too much.'''
--> ''[pulls a knife out thin air and holds it to the slaver's throat]''
--> '''Sarcastic!Hawke''': ''Plus'', I do that.
** In the original ''VideoGame/{{Dragon Age|Origins}}'', take a shot every time someone mentions the old saying that [[CanineCompanion Mabari]] are clever enough to speak and wise enough not to.
*** When reminded in the endgame that [[spoiler: the other Wardens will have questions about the Archdemon and why [[BloodMagic both Wardens]] [[DeusSexMachina made it out]] ]], Alistair cheerfully replies that "I can shrug and look stupid. It's a talent." (Alistair himself--despite what Morrigan insists--has a decent education as a Templar and is a competent soldier, and if he's hardened [[spoiler: and made king, he does better at ruling than Anora (well, most people) imagined]].)
* ''VideoGame/BlazBlue'' gives us Makoto Nanaya. On the surface, you have a girl who {{glomp}}s whatever she finds cute, [[BigEater eats way too much]] for a 49 kilo girl, climbs trees for exercise, tends to forget the NOL [[BadassCreed creed]], and acts like a FunPersonified {{womanchild}}. Beneath it all, however, she is surprisingly [[StreetSmart clever]] and adaptible - she attended the NOL Military Academy entirely on scholarship amongst a throng of noble jerks, and she proved dangerously competent as a spy within NOL Intelligence [[spoiler:[[DoubleAgent and Sector Seven]]]]. This, coupled with her desire to protect her friends, elevates her threat level to Hazama considerably - [[spoiler:as if finding a throng of rejected Noel / Saya copies in Ibukido wasn't enough, she [[SpannerInTheWorks unknowingly thwarted his plans in another timeline]], [[OutGambitted almost knowingly ruined them again in an alternate possibility of the main timeline]], and is an active detriment to his plans at large that aforementioned cleverness makes it a ''nightmare'' to plan around her.]] Of all the pieces in his [[CosmicChessGame chess game with Rachel and Jubei]], she's the one whom he will skip all other measures and kill on sight.
* Liu Shan is implied to be this as of ''DynastyWarriors'' 7
* [[ByronicHero Atton Rand]] in ''VideoGame/KnightsOfTheOldRepublic II'' at first seems like your typical Han Solo-{{Expy}}, (StreetSmart but completely out of his element when it comes to Jedi vs. Sith conflicts), but various characters drop hints that he is ''much'' [[HiddenDepths more than]] [[DarkAndTroubledPast he lets on]]. If the Exile confronts him on Nar Shaddaa, [[spoiler:he finally lets it slip that he used to work as a Sith hunter and torturer... who specialized in [[MageKiller capturing/killing Jedi]]. Much of his persona is him using his emotions and lesser thoughts [[PsychicStatic as a mental shield]].]] How much of his behavior is faked and how much is genuine is [[AlternateCharacterInterpretation debatable]].
-->'''Atton''': I haven't known who I am for ''years''.
* In ''VideoGame/RuneScape'', there's an NPC near the Barrows Brothers who is only known as the Strange Old Man. Normally, he just acts like a useless idiot who won't tell you a damn thing. But during the quest "The Temple at Senntisten, the Strange Old Man becomes a lot more lucid, a lot more direct, and a lot less weird.
-->'''PlayerCharacter:''' But I thought you were just some mad old bloke with a spade obsession.
-->'''Strange Old Man:''' I do my best to look useless. If only others knew the truth, it would chill their hearts.
* Letho, the Kingslayer, from VideoGame/TheWitcher2. He's a big, hulking [[DumbMuscle mountain of muscle who really doesn't look very smart]] and he uses this to his advantage like a true MagnificentBastard [[spoiler: as he manipulates the Scoia'tel and the Lodge of Sorceresses to aid him in slaying kings under the pretense that it would aid their own ends, when his actual goal is to make the Northern kingdoms descend into chaos so the Nilfgaardian empire could easily invade them]]:
-->'''Sile de Tanserville''': Letho played us all! We were decieved by his dull face and sluggish stare.
* ''VisualNovel/LittleBusters'' has Kyousuke and Masato. [[spoiler:Kyousuke is naturally silly and childish, but Refrain reveals that sometimes he was acting that way to throw Riki off from considering his true motives by pretending he was just acting on his own whims. Likewise, Masato ''is'' kind of a DumbMuscle, but he dutifully followed the script Kyousuke set for him to continue to act that way and pretend not to know anything Kyousuke was doing so as to uphold the world and keep Riki at ease.]]
* ''VideoGame/MadFather'': Aya, concerning her father's experiments (at least at a young age).
---> '''Aya (in narration):''' I feigned ignorance the whole time. Because I loved father.
* In VideoGame/SuperRobotWarsUX, Richard takes up a foreigner act and starts talking mixture of easy words from languages to pretend he's not a serious mercenary when he's on cover missions with Saya, Agnes is completely fooled by this and thinks they are comedians (comic story tellers).
* ''[[VideoGame/TearsToTiara2 Tears to Tiara 2]]'': [[TheHero Hamil]] pretends to be a dumb, unambitious youth lacking any sword skills, magic powers, or will to avenge his father or frees his people. He did this for seven years to prevent a rebellion by [[TheResistance the Barcid Party]] for as long as he could, and at the same time save up enough magic to give [[SuperpoweredEvilSide Melqart]] enough power to defeat [[TheEmpire the imperial army]] if the rebellion does occur. He throws off the disguise to save Tarte.
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