A character that the other characters should recognize (or at least recognize as out of place) dons a disguise and is treated as neither recognizable nor conspicuous. This disguise is so completely transparent that the audience wants to shout "For the love of God, it's him!"
The external reason for the flimsy disguise may be that the creators want to signal the presence of a disguise to the audience before the other characters catch on (a sort of Reverse Whodunnit). Sometimes, the character may also be a Special Guest the director wants to get their money out of. All the same, you often get The Reveal staged in such a way to make it clear that the director really thought you wouldn't have worked it out by now. For the more perceptive viewers, it's a case of The Un-Twist.
While not a Dead Horse Trope, these days Paper Thin Disguises are parodied as often as they are used seriously. The trope is still an important dramatic convention in live theater and opera productions — where a really good disguise would render the character unidentifiable from the cheap seats, and be beyond the scope of the prop budget to boot — but is usually employed along with some kind of nod to audience acknowledging the absurdity. This can sometimes be exaggerated for comedic effect, for example wearing bunny ears and becoming indistinguishable from a real rabbit, or pretending to be an ancient statue by simply standing still in a specific pose. Children's shows still employ this trope regularly without any parody element.
This trope differs from the general case of Wig, Dress, Accent in that a Wig, Dress, Accent disguise is always plausible. Paper Thin Disguise also includes the element of being staged as if the disguise really is convincing, which is not generally present in Wig, Dress, Accent.
Some consider a pair of glasses or sunglasses Paper Thin Disguise, but research showed that it is rather useful to mess with people who don't really know you well. (Research is done by showing pictures of people with and without glasses and asking others to recognize them, and people got a pretty bad score in glasses while worse with sunglasses.)
Sometimes, the trope is present when someone is mistaken for someone else, but it isn't an intentional disguise, it's just someone that appeared for no reason and is not trying a disguise, but has slight similarities that are enough to fool someone unintentionally.
It's becoming a bit common nowadays to subvert this trope by fooling the viewers instead, showing what seems to be a terrible disguise, but then it's revealed that it isn't, you thought that Bob was badly disguised as an old man, but then Bob in regular clothes appears next to that old man that looks like him.
Compare with Clark Kenting and Newspaper-Thin Disguise. Contrast with Full-Body Disguise and Latex Perfection. Also see Charlie Brown from Outta Town, Conspicuous Trenchcoat, Holding Both Sides of the Conversation, Hugh Mann, Most Definitely Not a Villain, Mr. Smith, and Not a Zombie.
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- Real Life
- The late Linda Smith had a routine complaining about the use of this trope in opera: "Someone puts on a big hat and suddenly no-one can recognize them, even people who they've been talking to for half an hour. If that worked in real life, the witness protection program would consist of a selection of headgear."
- There are plenty of Russian jokes about that, some of them dealing with Stierlitz, the main character of the Soviet TV series Seventeen Moments of Spring:
- Stierlitz was indistinguishable from the locals, but there was something subtly different about him compared to the Germans: maybe it was his military bearing, or the Hero of the Soviet Union star on his chest, or the parachute dragging behind him...
- ...No one had a clue that Stierlitz was lying motionless on the window sill, disguised as a cigarette butt.
- "Comrade Captain, I made use of the special disguise technique you've developed. I disguised myself as a tree stump. I was sitting there and wondering what sort of an idiot would buy this trick. Then a young couple sits down on me. I bore it. They were chatting. I bore that too. Kissing. I bore even that! Then they started... you know. I bore that as well like a true soldier. But when that bastard started carving the word "love" on my butt, I couldn't bear any longer!
- Happens a few times in The Far Side. The most notable example is a polar bear with a penguin mask that doesn't even cover his whole face. And yet the penguins wonder why their numbers are diminishing.
- Calvin and Hobbes:
- Subverted when Calvin assumes (probably from seeing too many TV shows where this trope is in effect) that he'll be unrecognizable in his "Stupendous Man" costume, and is thoroughly confused and frustrated when it fools nobody. Especially funny is that his mom, one of the people he expects will be fooled, made the costume for him in the first place.
- Calvin attempts to do this trope with Hobbes (wearing a trenchcoat with Hobbes on top) in order to sneak into an X-rated movie. Going by the ticket seller's remark in the final panel ("This is a new one."), she evidently did not fall for it.
- Calvin once donned a fake nose, glasses and mustache and when Mom came to ask him about a broken lamp, he altered his voice and asked, "Who ees thees Kahlveen?"
- Prickly City: How to disguise a coyote as the Lost Bunny of the Apocalypse: bunny ears.
- Spoofed in Brewster Rockit: Space Guy!, where the dumber than bricks main character Brewster mistakes an alien that looks like Mr. Potato Head wearing just a wig for Lieutenant Pamela.
- Subverted in Dilbert; Alice is clearly not fooled by the PHB's disguise here, nor is his secretary fooled in the following strip.
- In this Garfield strip, Liz may not be fooled, but as the next day's strip showed, Jon sure is.
- In one series of Peanuts strips, Peppermint Patty enlisted Snoopy's help to find out who took her teacher's box of golden stars. Snoopy disguised himself as Patty and took her place in class; however, it was little more than a wig resembling Patty's hair. Still, it fooled her teacher and Marcie, although Marcie was a little suspicious. ("What kind of illness makes your nose grow but the rest of you shrink?" she mused.) Meanwhile, Patty's disguise while she looked for the box of stars was just as absurd; she put on a fake mustache and work clothes and posed as a janitor named "Hans Hanson". She didn't fool Marcie, but she did fool the teacher. (And she did manage to find the box of stars, which had fallen into a wastebasket. Ironically, Snoopy did so well in class, he got one on his test.)
- Parodied and averted in a Heathcliff strip where Heathcliff goes trick or treating on Halloween wearing a devil costume:
Fish store owner: Heathcliff! I recognized you right away!
- The crocs do this often in Pearls Before Swine. They never fool anyone.
- In The Parselmouth of Gryffindor, Luna Lovegood thinks that wearing a pillowcase (and nothing else) and speaking in broken English is all it takes for House-Elves to confuse her for one of their own. A mortified Hermione quickly talks her out of it. Later on, Sirius, while Faking the Dead, creates the alias of "Jester White", for which he wears glasses and a false beard. AND IT WORKS. Also, apparently, Dracula was one of Hogwarts's many evil Defence Professors a few years before the story begins. His alias? Professor Vladimir Alucard, who chalked up his sunlight-intolerance to a "rare skin condition".
- In Memento Vivere, a Final Fantasy X fanfiction, Rikkus goggles will do it theory in Luca.
- Whenever the All Guardsmen Party tries to use disguises.
"We watched, tears in our eyes, as they practically marched onto the scene, looking exactly like a bunch of guardsmen trying unsuccessfully to look like civvies."
- Mostly because when they wear civilian clothes they just look like guardsmen wearing civilian clothes.
- It doesn't help that they hide their lasguns under their disguises. This produces a rather obvious rifle-shaped bulge, which gets them in trouble with security when they try to get into a bank.
- On top of that, they have to contend with Nubby trying to steal pretty much everything in sight.
- They even pass this on to their students when asked to train up new Interrogators.
- In the one-shot Hiding in Plain Sight Harry Potter gets Lasik eye surgery and becomes completely unrecognizable to the pureblood wizards at Hogwarts without his trademark glasses. Then the Aurors try to recreate 21 Jump Street at Hogwarts. The Muggleborn have absolutely no trouble recognizing the incredibly out-of-place "first-year students".
- A large degree of Kirby fanfiction gives Kirby the ability to become completely indistinguishable from whoever he's taken the power/costume of, despite the obvious size differences.
- Kyon manages to call Tsuruya and make her think he was his uncle Kintaro in Kyon: Big Damn Hero, even though he sounded identical to normal. He was sleeping in the same room as her at that point, though.
- The incredibly useless Invisibility Cloak in My Immortal: people can see the cloak when it is in use, so basically the users are walking around with a regular cloak over their heads.
- According to Light and Dark The Adventures of Dark Yagami, a naked woman can pass for a man merely by having a tattoo that reads "IM A DUDE".
- In the Calvin At Camp episode "The New Kid," Larry Koopa infiltrates the camp while wearing nothing but a Mickey Mouse hat.
- In Nobody Dies, in order to pacify a rampaging A.I. based on Fallout 3, Gendo tricks it into thinking he's Abraham Lincoln simply by wearing a top hat. It probably helped that he already had the beard.
- Hivefled: in one of the less grimdark scenes, the four trolls with the smallest and thus most easily-concealed horns dress up as humans to go food shopping. Not only are they wearing hats and gloves in June and concealing their grey skin only with face-paint, but John only just manages to stop them talking about eating babies in public.
- Mega Man: Defender of the Human Race has Wily's "Mr. X" outfit; possibly even worse is ProtoMan's alias, "Pro T. Mann."
- The Rizzoli & Isles Western AU fic Calamity Jane Meets Doctor Isles sees Jane disguising herself as male outlaw Jake Wyatt in the latter half of the 1800s, but once characters get past the masculine clothing, Jake Wyatt is just Jane with a fake moustache and wrappings around her chest, as well as socks down the front of her trousers.
- The AU Harry Potter series Adam Winters series features Adam Winters, a fake identity created when Pettigrew abducted Harry after Voldemort's death and placed him under various disguise charms. As a result, when 'Adam' goes to Hogwarts, he is basically Harry with a different hair and eye-colour, spared recognition for so long because nobody was actually looking for any similarity between him and the Potters, although after the disguise charms are broken, Dumbledore also provides Adam with different glasses to wear as Harry in order to better distinguish the two.
- The My Little Pony: Friendship Is Magic/Digimon Adventure 02 crossover Digital Harmony has the Digidestined trying to pass the Mane Five off on Earth by saying that they're Digimon. Of course, in the wake of MaloMyotismon's defeat in the 02 finale, the human world is becoming more and more aware of Digimon, so their families tend to buy it.
- Zigzagged throughout Like One Sundered Star, where superhero identities are Paper Thin Disguises when they have any efficacy at all. Karkat and John are the only ones who DON'T immediately ID each other as Heir and Hemogoblin out of costume. Dave and Bro barely even give lip service to the trope, removing their shades while "on duty" but making no other effort to conceal their faces. Kanaya has to drastically redesign Rose's Seer of Light costume into a real disguise after her Superpowered Evil Side rampages through New York unmasked.
- In Welcome To The Family Light Yagami determines that not even the genii of Wammy's House can withstand the mighty stealth powers of the "magic hoodie" that somehow renders him unrecognizable whenever he goes out to do nefarious things.
- Justified in Fist of the Moon. Usually the senshi have disguise fields protecting their identities that are so powerful you cannot remember their faces while staring straight at them. but people with high levels of Silver Energy are somewhat immune, so Ranma and Akane see through them without even realizing it's supposed to be a disguise.
- Tealove's Steamy Adventure exaggerates it for laughs. Big Tiny Little tries to impersonate Colt Skylark in order to gain Tealove and Snowcatcher's confidence. He looks and acts nothing like Skylark, he doesn't wear any disguise, and he doesn't get that Skylark was never a friend of Tealove or Snowcatcher in the first place. He doesn't fool anyone—the others just get tired of arguing with him.
Snowcatcher trailed off as a short, fat unicorn waddled up to the group. Who are you?
Who, me? he said. Dontcha remembers me? [...] Dontcha remembers yer old pal, Colt Skylark?
Snowcatcher groaned and placed a hoof to her forehead. First of all, you look and sound nothing like Mr. Skylark. Second, hes not an old friendhes a random pony with a suspicious backstory who weve known for less than an hour.
So you dont remembers yer old friend. Snowcatcher, that hurts me, right here it does. He placed a hoof over his heart.
- In Vapors there is an international, kunoichi-only summit to discuss dealing with the Akatsuki. The Dragon Konan doesn't even bother with a disguise, she walks in with her real face and name as the representative from Rain, because no one except Aiko knows who the leaders of Akatsuki are, and she can't tell.
- In I Against I, Me Against You Church and the Blues try to pass Twilight Sparkle off as a dog when passing through a military checkpoint. Surprisingly, it works, but the UNSC doesn't let front line personnel keep pets and confiscates Twilight. Wyoming, however, is not fooled.
- Just like in canon, we see a lot of this in The New Adventures of Invader Zim. Not only does Zim continue to get by with just a wig and contacts, but Skoodge has the same setup, while Norlock does the same but with Groucho glasses in place of the contacts.
- In Fate Genesis, when forced to confront Eggman in public, Saber takes a Kamen Rider mask from the high school's drama club and wears along with her normal battle dress to protect her identity. Notably, this only fools those who don't already know Saber is a Servant.
- Yu-Gi-Oh! The Abridged Series:
- Despite hiding his face and body well, Bandit Keith still frequently uses his catchphrase (...in America!) while disguised, and still uses the same deck (but to be fair, seeing as how he was a regional champion, it could have easily been Netdecked to hell and back).
- Averted in the anime, as Yugi's smart enough to figure out who it is from the deck theme. However, it's played straight a few arcs later when Yugi's grandfather enters the KC Grand Prix and duels Joey... the only one who didn't see through his disguise.
- Played straight with "Malik Blishtar".
- In A Very Potter Musical it's lampshaded multiple times:
- Harry's Invisibility cloak, which barely covers the group's shoulders and yet it seems only Dumbledore knows they're there.
- Dumbledore's (extra) beard when hiding from the Death Eaters searching for him.
- And, of course, Quirrel and his magically sneezing turban.
- In Friendship is Witchcraft, Sweetie Belle is a robot who looks indistinguishable from a normal pony... but speaks stilted words in a heavily synthesized voice. No one suspects her true nature, least of all Sweetie Belle herself.
- Ultra Fast Pony: in "Utter Lunacy", Spike the dragon successfully disguises himself by wearing a dragon costume (one which doesn't even cover his face) and speaking with a different accent. The only time he comes close to getting caught is when he briefly switches back to his normal accent.
- Averted in Make a Plan. Ron and Draco's attempt to obtain liquor in the Hogshead by wearing funny hats and fake beards and claiming to be dwarves fooled no one. What makes it even funnier is that their fathers tried exactly the same thing.
- In Fellowship of the Raven, the party at one point had to disguise their dragonborn member Glaedr when they had to return to the town of Vallaki both due to non-humans being very uncommon in Barovia and them still being fugitives there. The first attempt from Muriel was of this type, amounting to Groucho Marx glasses on what was still obviously a humanoid dragon, but after some assistance from her boyfriend Ivan the second attempt was actually pretty convincing.
- In The Unbroken Saviour Dumbledore wears a fake nose, a hat with ostrich feathers and one of his usual outlandish robes in an attempt to be inconspicuous. However, the outfit succeeds due to each of the elephants on the robe having an individual Notice-Me-Not charm cast on them.
- Used a lot in A Dream. Apparently, putting on sunglasses makes you completely invisible.
Ponies are generally bad at seeing through disguises.
- In The Road to be a Pokemon Master, Ash, Gary and Serena steal some Team Rocket uniforms to infiltrate Silph Co. And the Rockets see right through their disguises since they don't conceal the fact that they're still children, while every other Rocket is an adult.
- "Judy in Disguise (With Glasses)" was a hit song for the Louisiana-based John Fred and His Playboy Band in early 1968. The song was a parody of The Beatles' hit, "Lucy in the Sky with Diamonds".
- The Lonely Island song "Two Worlds Collide" features Andy Samberg singing about his love for country singer Reba Mc Entire. "Reba" is played by SNL cast member Kenan Thompson, who is actually an ordinary guy (who fully admits to being a man) who found a red wig in the dumpster, put it on, and somehow convinced Samberg that "she" is the real deal. The extremely graphic song describes all of their sexual escapades (with Thompson frequently mentioning his penis), but Samberg is none the wiser because of the wig.
- The members of Pink Floyd would sometimes mingle with the audience for drinks during the intermissions for their shows, with no disguise other than leaving their instruments behind. They were almost never identified as the people who had previously been performing under a spotlight right in front of them. Of course, all four of them were pretty unremarkable-looking and they tended to stay out of the public eye, but still...
- In the music video for "Paparazzi," Lady Gaga first appears as a platinum-blonde woman wearing outlandish outfits. After an attempted murder by her boyfriend, she seeks revenge by coming back into his life and killing him and the entire staff of his mansion. To do this, she dons the brilliant disguise of...platinum blonde hair and an outlandish outfit. Of course, this could be deliberate, as the video seems to be an attack on the public who eagerly cast away old stars to embrace newer, similar ones.
- Tellie from Sequinox gets put in a hotdog costume on Halloween by Vivaldi, and thinks that by that logic it wouldn't be recognized and could go to the school. Yuki quickly shoves it in her bag on account of, y'know, it's still a talking space fox. When the girls tell it to act more like a dog, it just says "bark bark bark".
- It's a standard part of any Charlie Brown from Outta Town storyline.
- André the Giant: In the spring of 1986 (following his WrestleMania 2 battle royal victory), Andre requested time off to go on a tour of Japan, heal from legitimate injuries, and begin filming scenes from a movie he was hired to star in, The Princess Bride. At the time, he was engaged in a 3-year-old feud with Big John Studd over whom was the true giant of wrestling, and a storyline was contrived to have Andre "miss" several high-profile tag-team matches (with a partner of his choice) against Studd and King Kong Bundy. Eventually, at Bobby Heenan's behest, WWF president Jack Tunney "suspended" Andre. Later in the summer of 1986, a masked wrestler, identifying himself as the "Giant Machine" appeared, targeting along with other masked "Machine" wrestlers Studd and Bundy. The villains insisted that the Giant Machine was in fact Andre. They were right, except they were unable to mask Andre to prove his true identity (much to the delight of fans), and the WWF's lead announcers, usually Vince McMahon, Gorilla Monsoon, or Bruno Sammartino, speculated that the "Giant Machine" might be one of several famous Japanese wrestlers.
- Indeed, Bundy and Studd never were able to prove their case to the fans, which had they succeeded Andre would have been "fired" (for circumventing Tunney's suspension). However, the storyline was always left open so that if Andre's health forced his retirement, the "Giant Machine" would have been unmasked. However, Andre's health held up enough and after finishing filming of The Princess Bride and concluding his Japanese tour he was "reinstated" ... and a heel turn later that led to his famous WrestleMania III match with Hulk Hogan etched his name in history.
- At the height of the Bundy/Studd-Machines feud, Heenan introduced his own stable of "masked" wrestlers during a segment of "The Flower Shop." It was obviously Studd and Bundy wearing paper masks, and they quickly revealed themselves to scornfully mock Andre.
- John Cena was storyline fired from WWE following Survivor Series 2010, but didn't actually leave the company (since he's kind of the biggest money-making machine WWE has at the moment). In his place at house shows, WWE trotted out Juan Cena, until he was "re-hired".
- Hulk Hogan's Mr. America disguise came about after he was "fired" in 2003. When he left the company, footage appeared revealing that Hogan took off his mask after a match.
- In TNA, what disguise did Sting wear when he attacked Rob Van Dam from the crowd? A Sting mask.
- Delirious tried to do CM Punk's steal an audience member's clothing and hide in the crowd trick but his mask and the tassels hanging off of it stuck out like a sore thumb. Daizee Haze has also worn some disguises in her efforts to aid Delirious...with mixed results.
- Kane's "imposter". In 2006, Kane feuded with an imposter who was wearing his old mask (but didn't look anything at all like him otherwise) who beat the actual Kane several times using his old moves. While it was obvious to fans who was who, nobody affiliated with the actual WWE could tell them apart. (Probably why they were content to drop the storyline without even revealing who he was after Kane did kick the phony's ass.)
- Pip Bin of Bleak Expectations is always fooled by his nemesis Mr Gently Benevolent's disguises, though they're always comically thin and he's prone to slipping back into his accent, saying his evil internal monologue out loud.
Pip: Mr Benevolent! How did you fool me for so long?
Mr Benevolent: Do you know, I genuinely have no idea.
- Taken to extremes in one episode where Pip Bin's sister (at that point Mr. Benevolent's 'saucy evil consort') blows the disguise in seconds. Twice. He still doesn't catch on.
- And then there's Miss Talula Really-Obvious-Fake I-Can't-Believe-You-Haven't-Noticed Not-A-Man. "She" is still Mister Benevolent, and he manages to fool Pip Bin long enough to get married. Even after Benevolent drops the act, Pip still believes Talula was real.
- Pip and one of his sisters get in on the act too. They escape from their respective boarding schools with the aid of their aunt by dressing up as a famous British Admiral and... a grandfather clock. When someone spots them and questions the walking grandfather clock his sister merely says "bong bong bong" and the question is dropped.
- In Ken Ludwig's Lend Me a Tenor, the theater manager's assistant Max disguises himself as the visiting tenor Tito Merelli after Tito is found dead in his hotel room. This works on the opera's audience, as they have never seen the real Tito and won't know the difference. However, Tito's Not Quite Dead, and is running around Cleveland in the same costume Max is wearing (Tito brought two identical costumes). Saunders, the manager, runs into Tito several times without realizing the costumed tenor is not Max, despite Max and Tito, even in costume, looking nothing alike.
- In many stagings of As You Like It, Rosalind's "Ganymede" disguise is portrayed as this. In these versions, Orlando recognizes her at once, she realizes as much, and their subsequent "tutoring" scenes together become coy, humorous flirtations between the pair, who through role-playing can be frank with each other in ways a young couple of the time ordinarily couldn't.
- In Holy Musical B@man!, Alfred is fired by Bruce, later returning as "O'Malley the Irish Butler" who is just Alfred wearing a hat and a ginger beard.
- In Jimmy Neutron's Nicktoon Blast, when Ooblar is breaking into Jimmy's lab, he dons a disguise that consists of: Groucho glasses, a camera, and a Universal hat. Jimmy sees right through it, but apparently no one else did.
- This was the main gimmick for the Purr Tender toy line: fluffy plush cats wearing fake ears and muzzles so they could pass as 'exotic' animals like dogs and mice. (The fact that they could all communicate with humans and came in pink and purple apparently didn't make them exotic enough.) Somehow, the disguises worked... until they started purring.
- Maji de Watashi ni Koi Shinasai! has Ms. Kishido. The only different thing she's wearing is the mask. This might have worked had she not been a blonde-haired, blue-eyed foreigner in Japan with her equally distinctive not-disguise-wearing protector along with her. A few people are actually fooled, though.
- Ace Attorney:
- In Apollo Justice: Ace Attorney, Apollo never notices the uncanny resemblance between the picture on the wall at the Wright and Co Offices and the victim of his first case (not even noting familiarity) even when the only difference is a goatee. On the other hand, Phoenix notices from the first meeting. The player, on the other hand, stands a chance of noticing at first glance, even without color.
- Furio Tigre kills somebody and then disguises himself as Phoenix Wright in order to "defend" the person he framed for the murder. This "disguise" consists of a suit, a fake attorney's badge (made of cardboard), and loudly proclaiming himself to be Phoenix Wright. It works despite Furio having bright orange skin and a very noticeable Bronx accent, and every major player in the case knowing Phoenix personally on top of that. All because he has the exact same spiky hairdo. The defendant mentions that everyone in the courtroom had "big question marks on their faces" when Not-Phoenix made his appearance, but every time someone tried to point this out, Furio literally roared them into silence. Even more bizarrely, the disguise is apparently good enough to fool the player — the first you see of Furio Tigre is in the chapter intro where Phoenix Wright loses a case... and he's rendered as completely indistinguishable from the real Phoenix. The skin colour can be explained away as being a fake spray tan that Furio just didn't put on that day, but it's pretty much stated that he made no attempt whatsoever to hide the accent.
- Trials and Tribulations subverts this with Dahlia Hawthorne when she appears to turn up in "Bridge to the Turnabout" with a different hair colour and nun's garments (retaining the same hairstyle and mannerisms, thus the Paper Thin Disguise). The subversion? It's actually her twin sister.
- Trials and Tribulations, the one difference between Godot and Diego Armando is basically a pallet swap and a face visor.
- "Director Hotti" in Justice for All is a mental patient at the Hotti Clinic who habitually steals the director's lab coat and uses it to try and pass himself off as the director, ignoring the fact that the ID badge pinned to the front of the coat has the real director's picture on it. He appears again in Apollo Justice as "Director Hickfield" of the Hickfield Clinic. Evidently the Hotti Clinic staff got sick of his bullshit and passed him off to another clinic to get rid of him. That, or the real Director Hotti quit in order to get away from him.
- Dual Destinies has "The Amazing Nine-Tails", a famous masked wrestler. Players groan at how long it takes for the characters to figure out that he's obviously Rex Kyubi, and are then blindsided when it's revealed that he's actually Damian Tenma.
- Chris in Princess Waltz. How obvious is it? Before The Reveal, knowing how bad a job she's doing acting, Chris asks in a roundabout way if Arata is sure he doesn't suspect her of anything. And barely refrains from mentioning what: Being a girl. It gets worse. He walks in on her with no disguise (bath) and still doesn't get it. All the yaoi fangirls in the class squee...
- Little Busters! has Mask the Saito, a mysterious masked man that appears and starts challenging people if, after being returned to the bottom of the battle rankings early on, you can make you way up to the top again. At first glance, it isn't obvious who it is, but as soon as he starts talking it's very clearly Kyousuke's voice. If you lose to him, he doesn't even bother to keep up the charade, turning around and walking off (revealing distinctive red/brown hair) while throwing the mask away. Riki is faintly bemused by the entire thing, but plays along.
- Katawa Shoujo parodies this to demonstrate just how detached from reality Kenji really is. During one of their encounters, Kenji mentions that he's going to the store and Hisao, well acquainted with his paranoia at this point, sarcastically asks if it's safe for him to go outside. Kenji, immune to sarcasm, counters that he's safely disguised because he has a hat. (Bonus points: he's not even wearing a hat.)
- In Nine Hours, Nine Persons, Nine Doors' "Safe" ending, Junpei pulls one on Ace, revealing the latter as the villain. Justified in that Ace suffers from prosopagnosia (better explained in the Real Life subpage) and cannot tell faces apart at all, which means Junpei only needed to get the clothes of another "player" to impersonate that person successfully.
- In Halloween Otome, it's downplayed (especially in the case of The Count), but Emma and Mr. Bandages hair (in length/style and colour, respectively) are striking enough that Emma should have recognized one of the guys, or vice versa.
- At the end of Butterfly Soup, Noelle and Akarsha use these while spying on Diya and Min's first date.
- Homestar Runner:
- Bubs' alter ego, The Thnikkaman, consists of him wearing sunshades and a piece of paper reading "TH" taped to his chest. And on a couple occasions he momentarily removes the shades. Only Homestar, The Ditz, ever sees through the disguise.
- As part of the annual Strong Sad Lookalike Contest, the Cheat dresses up as Strong Sad's left foot by sitting in a paper bag that had an elephant foot crudely drawn on it. Nobody else's costume is particularly convincing either (except for Homsar, who was disqualified because Coach Z thought he actually was Strong Sad), but the Cheat has somehow won the contest three years in a row this way.
- Also applies to Strong Bad's attempt to use a stunt double in the Dangeresque trilogy. The stunt double in question is clearly Strong Sad, and the terrible editing does not help.
- And then there's Homestar's The Cheat disguise, which is more extensive than most of the above - painting himself yellow with spots, adding a tuft to his head, walking on his knees, and saying "meh" a lot. It's about as good a Cheat disguise as someone with Homestar's looks could possibly manage... but considering the Cheat is a third Homestar's height and significantly plumper and has no legs (while Homestar has no arms), it's still a very long way from convincing. It fooled Strong Mad, though.
- ASDF Movie 8 has a cow pretending to be a man. It's disguise consists of a baseball caps and a skateboard.
- Bowser's Kingdom
- Steve as a Shy guy in episode 2.
- Hal and Jeff as Luigi and Mario, respectively in The Movie.
- The Weebl's Stuff cartoon "Scampi" is a list of things that the narrator has seen that are "often in disguise". None of the disguises are very convincing, which include a hamster wearing bunny ears, the planet Earth with a big sign reading "MARS" on it, Shakespeare dressed as a party clown, and a map of Malaysia with Kuala Lumpur's name scratched out and replaced with the obviously hand-written word "France".
- Blake Belladonna of RWBY wears a bow on her head to disguise her true nature as a Faunus, or more specifically, to hide the cat ears perched atop her head. From a meta perspective, seeing as hints to this were dropped heavily, when she accidentally blurted it near the end of the penultimate episode of the first season, almost no viewers were surprised. It was actually lampshaded the very next episode:
Yang: We're looking for our friend, Blake.
Penny: Oh! You mean the Faunus girl!
Ruby: Wait... How did you know that?
Penny: [points to the top of her head] Uhhh, the cat ears?
Yang: Cat ears!? She wears a... [dawning realization] Bow...
[the girls all stand around awkwardly as a tumbleweed rolls by]
Ruby: She does like tuna a lot.
- In Episode 22 of The Most Popular Girls in School, Ashley Katchadorian disguises (read: tries to) herself with... sunglasses, and a trenchcoat. Atchison's Taylor called her "a lesbian Inspector Gadget".