This entry is trivia, which is cool and all, but not a trope. On a work, it goes on the Trivia tab.
Fountain of Expies
"And there's a million of us just like me Who cuss like me; who just don't give a fuck like me Who dress like me; Who walk, talk, and act like me And just might be the next best thing, But not quite me!"
A character who is so popular and impactful that many other characters created afterwards are heavily inspired by it. They share even more than its Character Archetypes, they are its Expies: basically the same old character recycled, with some minor changes, to make it fit into the new setting. The original one gives inspiration not just for their basic Characterization Tropes, but for parts of their relationship dynamics, personality, and appearance.
While too many authors using the same obvious expies could be considered a worrying trend in terms of originality, it isn't an inherently bad thing. As a longer time passes, creators might be more and more likely to make bigger changes to the character, eventually growing it into a whole new Character Archetype trope on its own. In other cases, it's possible that the resulting characters are too different even for that: Talented writers can explore certain aspects of a character with an expy, and other aspects with another expy, in a way, that if you would compare the two expies, they wouldn't even appear that similar to each other. While it's possible that a Fountain of Expies also serves as a Trope Codifier for the character's most fundamental tropes, other times the shared similarities are more vague.
A Super Trope to Overused Copycat Character (when a work jokes about how many times a certain character has been copied).
In the following "subtropes" list, only add trope pages whose descriptions are explicitly based on the idea of collecting characters that are based on a first one. There are other tropes that were more indirectly started or codified by certain characters, but these should only be referenced in the second, character-based listing.
Yasunori Kato, antagonist of the classic series Doomed Megalopolis, has inspired a slew of imitators, which have in turn inspired others, to the point where it's difficult to tell who inspired who after the original. Characters of his lineage include M. Bison, Washizaki, Rudolph von Stronheim, the Blocken family, Brocken, and Shiliew, while surprisingly, we have a heroic version in the name of RaidouKuzunoha. Also, they are ALL descended from the Hugo Boss-designed Nazi officer uniforms.
The hairdo part is Lampshaded by an NPC in Chrono Trigger, the main character of which is a blatant Expy of Goku. In fact, he was designed by Toriyama himself.
Also, Vegeta himself helped define the concept of The Rival archtype. You could most likely list some of the expies as much as you could the Rei or Shana Clones.
Though Sensui has some more traditionally direct (as in, based directly on him in particular and not just the type of overpowered shounen Anti-Villain he created) expies as well- JinKariya, Chrollo (unsurprisingly, from a manga by the same author) and Homura.
Captain Harlock is very iconic in Space Opera anime, and he shows up damn near everywhere in anything where there are huge spacey battleships. Notable Harlock expies include Alex Row, stoic renegade captain of the legendary steampunk battleship "Kill'em All" Silvana, and the villainous Vicious, who even has the weird bird, probably to make up for his distinct lack of a battleship.
Guts is the pretty much the basis for ever "manly" Japanese hero after him. Some examples are Ike and Hector from Fire Emblem and Auron from Final Fantasy X.
While Superman could be said to be the Trope Codifier for the whole Super Hero genre, he is even more directly the inspiration for every single Cape superhero in terms of personality and outfit, and for anyone with the standard Flying Brick powers (including the aforementioned Goku!).
Conan the Barbarian: The most well known Barbarian Hero, whenever he's brought to pulps, paperback novels, comics or motion pictures, he always brings with him a slew of imitators.
In the Golden Age, there were countless Expies of Mandrake The Magician, usually complete with top hat and tails. The most well-remembered one is Zatanna's dad Zatara.
Almost without exception, if a work is intended as a parody of/meditation on/deconstruction of/homage to the idea of superheroes in general, there WILL be a Justice League of Expies and/or an expy Fantastic Four.
King Kong may be the single most referenced character who is not technically in the public domain, but it hasn't stopped many from copying him (probably because it's rather difficult to copyright a giant ape, whether we all know who it is or not). This was proved when Universal Studios famously sued Nintendo over Donkey Kong; they lost because they'd previously successfully argued a giant ape climbing a building was a public domain.
Sherlock Holmes. The inspiration for hundreds of eccentric private detectives in all kinds of settings, many of them explicit Expies, to the extent that from the time he became popular until Trent's Last Casedeconstructed the type in 1913, it was well-nigh impossible to find a Great Detective who didn't rip him off, or, for that matter, a crime-solver who wasn't at least a parody of a Great Detective. Several characters inspired by Holmes have become distinctive popular characters in their own right, including Gregory House and Batman.
Also, Elves. Extremely common in fantasy literature, but post-Christianity and pre-Tolkien, fae in general were portrayed as small, cute, harmless, etc.
The Wizard of Oz gave us: Cyborgs/Androids afraid of losing their humanity (the Tin Man), Cowardly Powerhouses (Cowardly Lion), the most iconic Wicked Witch of them all, and a very typical girl heroine (Dorothy).
Hawk from the Spenser novels by Robert B Parker codified and popularised the Psycho Sidekick in the private eye subgenre.
That "control other player" part sounds morbidly familiar...
Kefka. He may well be the inspiration for every Camp, Monster Clown, Nihilist in gaming the world over. Ironic, considering he's frequently considered the FF version of the Joker.
Inverted in Star Wars: The Old Republic. Every class is an expy of one or more characters from the Films, as are their starships. Companion Characters also channel minor chracters from the films and Expanded Universe.
If a video game produced after 2001 has a main character who's head to toe in Powered Armor and has any sort of personality, you can bet that said personality will resemble Samus Aran and/or the Master Chief, as will the abilities and limitations of said Powered Armor.
Back in the early 1930s, every new cartoon character that came along was a Mickey Mouse clone. Ironically, Mickey himself was merely following the formula established the decade before by Felix the Cat, and more than one person has stated that he was merely Disney's previous star Oswald the Lucky Rabbit with round ears and a long tail.
Some people theorize that the whole "black skin, white mouth" genre of funny animals started out as an animated version of minstrel shows.
