This is a concept that transcends almost all forms of media, and even has a related topic even in non-visual forms like radio or literature. When working with a very visual format you do not want people to confuse your characters between each other. You may be capable of distinguishing between your friends but in a story if the random RedShirt looks very similar to TheHero it can confuse the audience as to why the hero suddenly [[DroppedABridgeOnHim died with little fanfare.]] It might seem like a small thing but ''you do not'' want to confuse your audience like that.

So in order to make sure the main characters are identifiable you should go out of your way to ensure a distinctive appearance is given for everyone. As a rule of thumb, even though it may seem bad at first, even before you know the person's name other people should know what you're talking about when you talk about "That guy with the NiceHat" or "His BadassLongcoat was flowing in the DramaticWind." If they are that easy to identify from the start then it makes their presence in the story that much easier to follow.

Another popular thing to do is make their shape so distinctive that you don't need color or even see them, just a shadow cast on the wall is enough to know who it is.

The concept is very well known and applied in the professional level, and many examples of this can be quoted directly off the DVD special features.

And this can go in almost any number of directions.
* You have a FiveManBand, a group who is defined by their roles and quite often their physical size and appearance. You want these characters to be memorable, so you make them as different from each other in appearance as possible. TheHero is muscular, TheLancer is slender, TheBigGuy is really huge, TheSmartGuy is really small and oversized glasses, TheChick has [[CurvesInAllTheRightPlaces all the right curves]], etc.
* Have it all be ColorCodedCharacters. PowerRangers has survived on this for years, the Red Ranger is the leader. The Pink Ranger or Yellow Ranger is the chick. Not bad for a team costume that covers their face, huh?
* Make it a FiveTokenBand, even if all you know about the guy is that he's "The Mexican one" that's a lot better then "the other white guy."
* ClothesMakeTheLegend
* DressCodedForYourConvenience

And compare/contrast any number of tropes, including CastOfSnowflakes, OnlySixFaces, PaletteSwap, LimitedWardrobe, OneSteveLimit.
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!!Examples:

[[foldercontrol]]

[[folder:{{Anime and Manga}}]]
* ''Anime/CowboyBebop'' made the main cast all very distinctive, with the slender Spike, muscular and bearded Jet, curvy Faye and waif redhead Ed. Apparently the designer even said that he avoids drawing characters with perfectly symmetrical appearances and that is why Jet had the mechanical right arm and the metal piece under his left eye.
* This is probably one reason why the main character in a ''Franchise/{{Gundam}}'' show always pilots a Gundam - to stand out from the crowd (and sell more model kits). Only 08th MS Team subverts this by giving Shiro the same MS as his comrades... until it's badly damaged and he gets a customized unit.
* [[Manga/FullmetalAlchemist Edward Elric's]] [[BringMyRedJacket bright red coat]]. Most of the other State Alchemists wear the same uniform but are visually distinct enough that you can tell them apart, in part due to varying body types.
** Only in the original anime, though. While he does wear it in the manga and Brotherhood, its appearances become much less frequent as the story goes on.
* Isumi of ''Manga/HayateTheCombatButler'' doesn't wear the standard girl's uniform at their school. This is even lampshaded when Nagi invites her to come see the new kitten: she says she needs to go home first and change out of her school uniform and Nagi responds that she's wearing a kimono already. The Hakuou girl's uniform is already similar to a kimono, but Isumi says it's too breezy.
* Oda, the creator of ''Manga/OnePiece'', goes out of his way to make sure every non-mook has an appearance distinct from everyone else (except for a pair of SingleMindedTwins).
* ''Franchise/SailorMoon'' has the title character wearing her trademark OdangoHair with long [[GirlishPigtails twintails]], making her very distinct and recognizable throughout the whole Magical Girl genre.
[[/folder]]

[[folder:ComicBooks]]
* Franchise/{{Batman}}'s silhouette is as easily identified as his appearance, most of the time it is the same thing as his insignia. Part of it is intentional, when his body and cape casts a shadow even the mooks know he is there.
* ComicBook/{{Wolverine}} with his claws extended in the crouch stance.
* This was Creator/{{Todd McFarlane}}'s objective when he started drawing ''Franchise/{{Spider-Man}}'', and it mostly worked. His silhouette is pretty standard... except that it's often contorted into odd poses, and sometimes those big white eyes are staring out of it.
* In early {{superhero}} comics, colorful costumes and iconography where often the only way to tell heroes apart due to level of art (and quality of the color printing) produced at the time. This is why Batman and Superman were able to pass as each other when needed for the longest time.
* This trope can be difficult to pull off well in war comics. Every character generally must be a young male, wears the same uniform (usually including a helmet or other headgear), often necessarily of the same ethnic background, etc. Giving characters distinctive appearances without [[ArtisticLicenseMilitary violating basic military realities]] presents a lot of challenges - particularly if the artist already has OnlySixFaces tendencies. Joe Kubert's character designs for ''[[{{Comicbook/SgtRock}} Sgt. Rock]]'''s Easy Company are a good example of an artist successfully giving soldiers Distinctive Appearances despite all those obstacles.
* PlayedForLaughs in the Canadian ''Stevie Diamond'' book series by Linda Bailey. The titular character has distinctive frizzy hair, and she becomes incredibly self-conscious about it when the lifeguard at the local pool tells he to get out of the pool by yelling "Hey You! The kid with the hair!" That' right, ''the'' hair.
[[/folder]]

[[folder:FanFiction]]
* Anyone who has tried to illustrate ''FanFiction/MyImmortal'' has run into this problem. Everyone is deathly pale. Everyone has dyed their hair black. Everyone wears the same "goffic" clothes. All the distinctive aspects of any character's canon appearance (Harry's glasses, for example) are soundly eliminated.
[[/folder]]

[[folder:{{Film}}]]
* Franchise/IndianaJones and his NiceHat. He walks into a room and you know it is him. You see his shadow and you know it is him, and just to be on the safe side he carries a whip on his belt in case of other hat-wearing characters. You can see him in a crowd and know which one he is on a bridge. So much so that the filmmakers eventually decided that his hat would only come off if there was a darn good reason. Note the footage of Harrison Ford jokingly offering to staple the hat to his head.
** Van Helsing of...''Film/VanHelsing'' has a similar NiceHat for similar reasons, as Stephen Sommers has said: makes it very easy to tell who he is, even in a long shot.
* Several monsters created by Creator/{{Toho}} certainly apply here. One can easily recognize Franchise/{{Godzilla}}, King Ghidorah, Anguirus, and Gigan for example due to their distinctive appearances.
* ''Franchise/StarWars'': Is there anyone who can't [[http://static.tvtropes.org/pmwiki/pub/images/tpm_teaser.jpg recognize Darth Vader by his shadow?]]
** The lightsaber colors were meant to be easily distinctive between Jedi and Sith. And in a literal vein, Luke's new lightsaber in ''Return of the Jedi'' was supposed to be blue, but with most of the Sarlacc pit battle being outside against the blue sky they changed it to green to stand out.
*** Also, apparently the reason Creator/SamuelLJackson wanted a purple lightsaber was so he could pick himself out in crowd shots.
* During production of ''WesternAnimation/TheIncredibles'', an animator did outlines of each of the Parr's heads, to make sure each of them was distinct from the other. Creator/BradBird liked the sketch so much he had it made into a T-shirt.
** Yep. Not only color, but also silhouette, pose, and light-to-dark ratio/location.
* This was talked about on the DVD of ''SpiderMan 2'', where they said it was really fun to create Doctor Octopus because all you needed was his silhouette and you can tell it is him.
* In ''Film/RushHour 2'' the fight in the massage parlor had all of the {{mook}}s wearing blue robes with JackieChan wearing a purple robe and, well, Chris Tucker stands out with little trouble, but they still had him do the fight shirtless.
* The first ''Film/{{Transformers}}'' film was criticized because the robot characters were so complex it was hard to tell them apart in past paced action scenes, especially characters with remotely similar color schemes. The later films addressed this by adding more colored parts to existing characters, and adopting vastly more distinctive appearances for new ones.
** On the other hand, the movies also paid extra attention to developing different looking character designs that avoided "grill becomes chest, sides become arms, rear becomes legs" that most car-based Transformers used. Such as Ironhide with the front end of the truck split to become his shoulders rather than chest. ''Film/TransformersRevengeOfTheFallen'' went ''way'' out there on a number of designs like [[http://tfwiki.net/wiki/Demolishor_(ROTF) Demolisher]] and [[http://tfwiki.net/wiki/Rampage_(ROTF) Rampage]].
* In ''The Triumph of Sherlock Holmes'', Balding is a good head shorter and a good foot rounder than Murdoch. This makes a major plot point [[FridgeLogic pretty perplexing.]]
* This was an issue in designing the ''Reliant'' for ''Film/StarTrekIITheWrathOfKhan''. Since the ''Reliant'' is also a Federation starship, it had to look like it came from the same fleet as the ''Enterprise''. At the same time, however, the ''Reliant'' is hijacked by the villains and is their ship for most of the movie, so there was a concern that audiences would become confused if the "good ship" and the "bad ship" looked too much alike.
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[[folder:Literature]]
* Subverted in the ''Literature/KnightAndRogueSeries''. Fisk and Michael are both plain looking. So plain looking that people trying to catch them have an easier time trying to ask about their horses. However, Michael happens to have a scar on his face that, in the second book, is faked by a framer so that everyone will be on the lookout for that particular distinguishing feature.
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[[folder:LiveActionTV]]
* ''Series/{{Scrubs}}'' had all the people in the hospital separated into colors: white lab coats or blue scrubs for medical doctors, green scrubs for surgeons, pink (or purple) scrubs for nurses and the maintenance/janitorial crew wear black. Even then J.D. usually wears a different shade of blue than most of the other doctors (or at least Elliot, who is also a medical doctor). Dr. Cox and Dr. Kelso are generally the only main characters to regularly [[DressedToHeal wear labcoats]].
** Individual characters usually do something to look unique. The Todd always has his [[SleevesAreForWimps sleeves ripped off]] to show his "guns." Doug wears a much lighter shade of blue along with a red fanny-pack.
** In the episode where J.D., Turk and Carla all got scooters, they matched the colour-coding of their scrubs, in a mild LampshadeHanging. In another episode, Dr. Cox notes with amusement that J.D. and Elliot wore the exact same clothes in a certain scene, a dark olive green, long sleeved undershirt with dark blue scrubs overtop. Because they are at work it wouldn't be an issue at all if it wasn't for this trope.
* ''Franchise/StarTrek'' did an iconic color coding of their uniforms, along with department insignia on the chest patches and sleeve stripes indicating rank. TOS had Operations wear gold (actually a lime green, like Kirk's wraparound tunic, but the lighting on the standard uniform fabric made them look gold), Engineering and Security [[RedShirt wore red]] and Science and Medical wore blue ([=McCoy=] even had a short sleeve tunic to make it clear he was a doctor). In ''Series/StarTrekTheNextGeneration'' the rank was designated by pips on their collar and the department colors changed: Operations wore Red, Engineering and Security wore Gold and Medical and Science wore blue as always (Dr. Crusher often had a blue lab coat).
** When ''Series/StarTrekDeepSpaceNine'' came out they introduced new uniforms to have colored shoulders rather than colored torsos, originally made to differentiate Starship crews from Starbase crews. In ''Film/StarTrekGenerations'' the colored shoulders uniform was given to the command officers on the Enterprise, making it the only time both variations were worn by the same crew.
** They also introduced a special captain's uniform to make them different from other operations staff. Kirk had the green wraparound tunic (acknowledged with ''Enterprise'''s MirrorUniverse episode). Picard had a two layer outfit with a velvet jacket over a gray shirt. ''Film/StarTrekFirstContact'' introduced the Starfleet uniform change with a black and gray jumpsuit with color coded turtleneck undershirts, but Picard spent most of the film wearing a red shirt under a vest. That same outfit was later worn by Sisko in ''Series/StarTrekDeepSpaceNine.''
** Admiral Uniforms also tended to be different, often with more insignias and a front zipper. ''Series/StarTrekEnterprise'' surprised fans by having the Admiral uniforms with a necktie.
* ''Series/GreenWing'' does something very similar to Scrubs, at least to a certain extent, which obviously makes sense when they're both set in hospitals. Oddly, while all three wear green scrubs in the operating theatre, Mac will continue to wear his while Caroline and Guy change back into their white lab coats.
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[[folder:NewspaperComics]]
* This is why the main ''ComicStrip/{{Peanuts}}'' characters have different patterns on their clothing. Charlie Brown has the distinctive zigzag, Linus wears stripes, Sally has polka dots. When Charles Schulz realized that Rerun looked too much like Linus, he gave Rerun a flatter hairstyle and ever-present overalls.
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[[folder:VideoGames]]
* ''VideoGame/GearsOfWar'' designed TheHero Marcus as having the default armor style for the game, with everything else being derived from his design. For Dominic they gave him a shoulder light as well as a knife on his chest to give him a different silhouette. Cole has bare arms and Baird has blonde hair with blue armor. The Carmine brothers are always based on a new "generic COG soldier" design that is used for all the extra characters, which incidentally also makes them stand out as a generic soldier who is nonetheless a member of the main team.
* Valve deliberately invoked this when designing the characters in ''VideoGame/TeamFortress2''. Every class has a [[http://1.bp.blogspot.com/_J0eGLzEI-8A/STxVcIj2jjI/AAAAAAAAADw/wr8UGwQmva0/s320/TF2ManicanBreakdown.jpg very distinct shape]] which helps a lot to identify what's coming after you. This also used to make it easy to spot snipers by looking for the hat, until just about everyone gained customized hats that can throw this off.
** This design philosophy is maintained in the game's equipment as well--with the incredibly diverse range of weapons available to classes, Valve is careful to make otherwise similar weapons have distinct outlines and details to give players a good idea of what they're facing. For instance, all the sniper rifles share a basic shape, but each of the alternate rifles is notably different from the baseline weapon in their visual design: the Sydney Sleeper has a narrow scope and feathers on the end of its barrel, the Bazaar Bargain appears to have no scope and long metal rails along its length, the Machina is an enormously boxy and futuristic gun, and the Hitman's Heatmaker has a short but fat silencer for a barrel.
* Also by Valve, the characters in ''VideoGame/{{Left 4 Dead}}'' all have distinctive silhouettes as well as the various special infected.
* ''VideoGame/MassEffect2'' gives [[spoiler:geth party member]] Legion a massive hole through his chest, visible from almost all angles and [[spoiler:a chunk of Shepard's N7 armor recovered from the wreckage of the original ''Normandy'']] welded to his chest, so the player can distinguish him from his hostile cousins at a glance and avoid friendly fire incidents.
** Most alien squadmates also have some feature to help distinguish them from their cousins. For example, unless you pay attention to skin colour and clan markings, turians all use the same character model, so Garrus gets a bright blue visor over one eye. Liara is the only asari with facial markings that just happen to look exactly like eyebrows, et cetera.
* Despite being very much a ImprobablyFemaleCast, it's possible to tell nearly every member of the ''VideoGame/{{Touhou}}'' cast apart by their silhouette, as demonstrated in [[http://www.youtube.com/watch?v=G3C-VevI36s this video]]. The abundance of {{Nice Hat}}s and nonhuman features (ears, tails, horns etc.) and distinct accessories certain helps.
* Every single Robot Master in the ''VideoGame/MegaMan'' series is designed with a distinct body, which helps a lot when you consider how they [[OnlySixFaces tend to have similar faces]]. Many can also be told apart by their silhouettes (much like the ''VideoGame/{{Touhou}}'' example above), if ''9'' and ''10'''s [[http://www.youtube.com/watch?v=WPScPaInWOI promo]] [[http://www.youtube.com/watch?v=DeIRUVPROOU videos]] are any indication.
* ''VideoGame/HaloReach'' gives Noble Team distinctive appearances beyond the striking colors sported by some major SPARTANs in other parts of the series and the armor customization seen in different games. Jorge towers over his teammates, Kat's scrawny prosthetic arm is always exposed and Emile's visor (never open in-game) sports a sinister skull while Jun is the only one with anything approximating a sensible camo pattern (makes sense due to his role as a sniper). Carter and default armor Noble Six are the only members whose armor is remotely standard issue, with Carter that draws attention to the fact he is the leader and for Six it leaves them open for character customization.
* All over the place in ''Franchise/SuperMarioBros''. Even similar-looking characters like Mario and Luigi are easily distinguished by physical differences such as height, clothing color, and even the curliness of their mustache and sideburns.
[[/folder]]

[[folder:WebComics & WebOriginals]]
* In ''WebComic/AwfulHospital'', the only characters to look alike so far are the kidney stone children, which didn't have distinct personalities or names of their own. Other characters we have seen include a giant, sentient bacteriophage in a bowtie, a bag of medical waste that fashioned itself into a nurse, a man with a giant syringe for a head, and various human organs operating independently.
* Due to their unique accessories, and the careful design of their fur and tails, no two characters in ''WebComic/BittersweetCandyBowl'' have the same silhouette. Without, however, a few look rather similar - this is most notably played with when [[spoiler:Sandy is finally introduced on-screen in the present.]]
* One chapter in ''How to make Webcomics'' (By Kurtz, Straub, Guigar, and Kellet) even went so far as to describe the (black-and-white) layouts of the different characters in PVP, pointing out the different areas as light and dark, and how no two characters had the same arrangement.
* ''Blog/AskTheManeSix'', a Website/{{Tumblr}} ask blog based on ''WesternAnimation/MyLittlePonyFriendshipIsMagic'', redesigned the ponies as humans. Each humanised pony has a completely distinct appearance (such as an indian Twilight Sparkle, a muscular Applejack, and an overweight Pinkie Pie), which is notable when you compare it to other humanised pony illustrations.
* It is hard, very hard to mistake one character for another in ''WebComic/TowerOfGod''. It could be the fact that one of the main characters is a miniature version of Godzilla. Maybe because that Purple Jumpsuit only belongs to one person. Anyway, despite having very similar faces (except for Godzilla and the other LizardFolk) character designs tend to so one-of-a-kind that most characters can be identified from afar. That even goes for all the background characters from season one.
[[/folder]]

[[folder:WesternAnimation]]
* ''Franchise/{{Transformers}}'' does this most especially when the toy designs were actually for the franchise and not repackaged from other toy lines. Optimus Prime's chest windows are more the rule than the exception. In fact, since most of the other Autobots have the front grill of the car become their chest, having the front windows become his chest is what makes him visually unique and thereby the leader. With ''WesternAnimation/TransformersAnimated'', the outlines for every main character is very distinct.
* ''WesternAnimation/{{Gargoyles}}'' come in all shapes and sizes. None of the main crew have the same color scheme, same wing design, or even the same face. In fact, seeing that Angela had Goliath's coloring but Demona's appearance tipped Elisa off that she was Goliath's daughter.
* The original character design for ''WesternAnimation/TheSimpsons'' required the family to each have distinctive silhouettes (only Maggie and Lisa have the same hair). Most other characters could probably be recognised by their silhouette too.
** It's actually one of creator Creator/MattGroening's rules that the character design department MUST make all new characters instantly recognizable by silhouette, but not draw attention from the main family, or it gets rejected.
** This can also be seen in ''WesternAnimation/{{Futurama}}'' where Matt Groening described Fry's "hair horns" as being particularly useful in maintaining a unique silhouette.
* The ''WesternAnimation/PhineasAndFerb'' creators used to work on ''TheSimpsons,'' so they designed the major characters based on the same concept. The title characters are the most obvious examples, especially Phineas, who has a triangular head.
* Creator/AdultSwim had a between-shows promo that mentioned this, with silhouettes of the cast of ''WesternAnimation/{{Futurama}}'' clearly identifiable. Done in a few other promos, as well, such as one where, when asked if there were any anime series they were glad to be rid of, they merely showed a silhouette of [[Anime/ReignTheConqueror Alexander the Great]].
* Even if Henry and June from ''WesternAnimation/KaBlam!'' wore the same outfit, had the same eyes, and sported the same hair, there's a way to tell them apart. Henry has freckles, and June has some baby fat she didn't burn off yet.
[[/folder]]

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