Flanderization

Flanderization is a trope that refers to the act of taking a single trait from a character and exaggerating and amplifying it more and more over time until it completely consumes the character. Most always, the trait/action becomes completely outlandish and it becomes their defining characteristic. Sitcoms and other comedy shows are usually the ones to suffer this, due to the writers doing anything they can to get a cheap laugh from the audience, even if it means sacrificing a character's personality. Either there are out of character personalities that are counted as against the characters we have known in love, or there are personalities that will make you have no choice but to lose all of your respect you would have had for all the characters.

Although, Flanderization doesn't always make the characters turn out awful. Some Flanderization can make them funnier and likable. It depends on how the character is flanderized. This good side of Flanderization is most noticeable in Thor from the MCU, who became a less serious and more badass hero.

Flanderization is especially common amongst works where the creator is not involved, with their replacement not understanding the nuances of the characters and what made them so good in the first place even if they were explained the lore or had seen the series that involves the creator. It is also extremely common in fanfiction for similar reasons no matter how devoted a fan is.

The Simpsons, being the series which spawned this trope's very name, has this almost across the board. Over time, the series has, in many ways, become a symbol of this trope in its purest form.

In the topic of Flanderization, the American animated sitcom King of the Hill is a notable example of a series that used Flanderization. This series is known for giving flatter characters new aspects, then focusing on them, thus creating the sense of Flanderization at the same time as they get Character Development.

Flanderization is to not be confused with Character Derailment, in which it involves a character's trait(s) being vastly different compared to what was previously shown.

Although rare, some of the characters actually recovered from flanderization overtime massively like The Simpsons characters, Batman (DCEU), Superman (DCEU), Ben Tennyson (2016), SpongeBob SquarePants (Seasons 6-8), Patrick Star (Seasons 6-8) and Gwen Tennyson (2016).

Notable victims of Flanderization
NOTE: If highlighted in green, it is positive Flanderization.
 * Ned Flanders (The Simpsons; the trope namer, went from merely enjoying going to church to being obsessively religious and overly nice, and then later an obnoxiously intolerant bigot who will lash out at anyone that doesn't support Christianity. However, he managed to improve two times that is from seasons 13-15 and the current seasons 32-onward.)
 * Moe Szyslak (The Simpsons; became the show's punching bag, even before he was the show's punching bag, he was the main punching bag whenever he gets prank called by Bart, other things else, either done in a funny way or not so funny way. However, he managed to improve two times that is from seasons 13-15 and the current seasons 32-onward.)
 * Homer Simpson (The Simpsons; Seasons 11-12, 16-31; became a selfish and sometimes crazy moron. However, he managed to improve two times that is from seasons 13-15 and the current seasons 32-onward.)
 * Marge Simpson (The Simpsons; turned into an overprotective mother who's no fun at all, what is completely against her character. This happens in the episodes where the episode is disliked by fans, considered boring, or is just plain bad. However, she managed to improve two times that is from seasons 13-15 and the current seasons 32-onward.)
 * Bart Simpson (The Simpsons; turned into a borderline sociopathic jerk, though not as bad as Peter Griffin. However, he managed to improve two times that is from seasons 13-15 and the current seasons 32-onward.)
 * Lisa Simpson (The Simpsons; became a know-it-all Social Justice Warrior, which is far too against her character. However, she managed to improve two times that is from seasons 13-15 and the current seasons 32-onward.)
 * Maggie Simpson (The Simpsons; became a flawless Mary Sue, despite the fact that she is likable and cute. However, she managed to improve two times that is from seasons 13-15 and the current seasons 32-onward.)
 * Garfield (The Garfield Show; became an unlikable slob)
 * Jon Arbuckle (The Garfield Show; became an idiot)
 * Nermal (The Garfield Show; became a jerk)
 * Harry Potter (Harry Potter novels 5-7; became an unlikable jerk)
 * Hermione Granger (Harry Potter novels 5-7; became an annoying Mary-Sue and as jerk as Harry)
 * Peter Griffin (Family Guy; Season 7-present; became an insane, rude, hypocritical, selfish, psychopathic, and an egotistical person)
 * Lois Griffin (Family Guy; Season 7-present; became a sex-crazed, abusive short-tempered wife)
 * Meg Griffin (Family Guy; Seasons 7-14 (2008-2016); became a punching bag up until Season 14)
 * Chris Griffin (Family Guy; Season 7-present; became a character going in full idiot mode in the worst way possible)
 * Brian Griffin (Family Guy; Season 7-present; his entire personality now amounts to being a "liberal", and became a complete jerk and got even worse when he came back)
 * Stewie Griffin (Family Guy; went from a toddler with the mind of an evil genius to a toddler with the mind of a stereotypical gay guy, but later returned back how he was)
 * Glenn Quagmire (Family Guy; Season 7-present; became not just a pervert, but an implied 'child molester.
 * Cleveland Brown (The Cleveland Show; Went from being a Nice Slow Talking Character, into the black Essence of Peter Griffin, though he did redeem himself).
 * Stan Smith (American Dad!; Season 11-present; went from being a well-meaning father, into the American Dad version of Peter Griffin).
 * Roger Smith (American Dad!; Season 8-Present; went from being a Hilarious Comic Relief into a Sadistic Character who enjoys murdering.
 * Robin (Teen Titans Go!); became a complete overbearing and severely mentally or psychologically ill dominant jerk.
 * Starfire (Teen Titans Go!); became a more child-like and immature teen who adds "the" in almost every sentence she says and it gets annoying really quickly. She also screams a lot that it sounds like a high-pitched anime girl in an English dub yelling at the top of her lungs.
 * Beast Boy (Teen Titans Go!); became into an immature, whiny, destructive, literal party-animal teenager and a lazy couch potato who barely gets up to do something simple.
 * Cyborg (Teen Titans Go!); became an annoying idiot, with his giraffe neck gag being annoying at times.
 * Ed (Ed, Edd n Eddy; Seasons 5-6; became an emotional, unrealistically simplified, too-dumb-to-live idiot, although he is still likable all things considered)
 * Edd (Ed, Edd n Eddy; Seasons 5-6; became a constantly complaining goody-two-shoes)
 * Eddy (Ed, Edd n Eddy; Seasons 5-6; became an unlikable violent maniac)
 * Jimmy (Ed, Edd n Eddy; Seasons 2-6; became a vengeful camp gay crybaby)
 * Jonny 2x4 (Ed, Edd n Eddy; Seasons 2-6; became an annoying loudmouth goofball and saboteur who can't act or function without Plank)
 * SpongeBob SquarePants (Spongebob Squarepants; Seasons 6-8; became an obnoxiously happy moronic idiot and a crybaby in some episodes. In season 9-onwards, however, he finally got better after years of complaints from fans and critics.)
 * Patrick Star (Seasons 6-8) (Spongebob Squarepants; Seasons 1b-5; 6-8; he suffered two flanderizations; he started out as a kind of dumb but fairly intelligent, but as Season 1 progressed, he became more stupid and immature and eventually his stupidity became his main, defining trait (This was a good Flanderization that made him funnier and more memorable); then, in Seasons 6-8, he had second Flanderization (which wasn't a good one). He essentially became brain dead, with his actions becoming dangerous at times. He also became a selfish jerk. True, Patrick had his jerky and antagonistic moments in earlier seasons, but these moments pretty much became a major part of him in these seasons. Then, in Season 9 onwards, he finally got better after years of complaints from fans and critics)
 * Mr. Krabs (Spongebob Squarepants; Seasons 6-8; turned into an even bigger black-hearted and self-serving greedy monster who, in one episode, terrorized Plankton to the point where he attempted suicide (yes, seriously) and Mr. Krabs just brushed it off like it was nothing; his love for money also became over-exaggerated)
 * Timmy Turner (The Fairly OddParents; was portrayed as essentially a goodhearted and relatable kid in the first three seasons, who occasionally gave into his selfishness. However, by about the fourth or fifth season, he became somewhat of a jerk, even towards his own fairy godparents who were summoned to help him in the first place. Timmy has returned to most of his original affable characterization by the sixth season onward but his jerkiness and selfishness still showed up every now and again, before fully relapsing back into it in the tenth season upon the introduction of Chloe Carmichael.)
 * Cosmo (The Fairly OddParents; was originally simply The Ditz and a bit of a Cloudcuckoolander, sometimes dim but still relatively normal, and perhaps strangest of all, he and Wanda seemed to be on an equal level of airheaded and careless intelligence ("We're two halves of a whole idiot!") Starting around Season 2, he started to become increasingly dumber with each season. Now he's just The Ditz. Just look back at his character in the original Oh Yeah! Cartoons pilot — he was actually a suave and sophisticated guy, barely resembling the character he became. Also, his relationship with Wanda in Seasons 4 and 5 was the foil for a lot of marriage jokes; in a couple of episodes, he claimed to be trapped in the marriage to Wanda and that she had tricked him into it. This characteristic was toned down in Season 6, when the birth of Poof turned them into loving parents. However, depending on your view, they became less empathetic towards Timmy in several cases (examples being "Bad Heir Day" and "Lights Out") because of this very reason. By the final two seasons, the ninth and tenth seasons, Cosmo officially became a too dumb to live-type character, to the point that Wanda would often babysit his stupidity through sheer tolerance rather than seem like an actual couple they originally were in the earlier seasons.)
 * Wanda (The Fairly OddParents; was originally portrayed as being dimmer than Cosmo, believe it or not, then at around Season 1, they shared an equal amount of intelligence. From Season 2 onwards, Wanda became simply the wiser one who chastised Timmy and Cosmo whenever they did something wrong. Then, all her jokes tend to be that she's a total nag, to the point where the Barbarian Hero episode had her become the whip-cracking Nagules. Her marriage to Cosmo also became one of the biggest sources of humor on the show, to the point where Cosmo made it appear that he was trapped in the marriage to Wanda; however, this was toned down in Season 6, when the birth of Poof brought them closer together and they were revamped as loving parents. But as stated before, depending on your view, Poof coming into the picture had lead Cosmo and Wanda into being less empathetic towards Timmy in several cases, up to the point where Wanda herself can be seen as a mean-spirited nagging shrew at times. By the final two seasons, the ninth and tenth seasons, she became either absent-minded or just a total nag. She and Cosmo also seem to have an equal amount of stupidity and careless, evident when they lose their wands in almost every episode, rendering them useless and unable to help Timmy, who is left to do everything on his own with either Sparky or Chloe. In "Girly Squirrely", she had the idea to dip their wands in stomach acid.)
 * Mr. and Mrs. Turner (The Fairly OddParents; they go from busy and clueless to extremely negligent parents who have hinted at times that they don't truly love Timmy, and see him as a burden. This was actually the plot catalyst in an episode guest-starring the late Steve Irwin as 'The Bad Parent Hunter'.)
 * Vicky (The Fairly OddParents; went from a sadistic bully who enjoys torturing Timmy while keeping him safe, to a psychotic killer who wants to outright kill Timmy for no apparent reason.)
 * Denzel Crocker (The Fairly OddParents; went from Timmy's mentally ill teacher who was a loner living with his mother and obsessed with hunting fairies in order to prove their existence to the world in the first six seasons, into just another annoying manchild like what Timmy's Dad had become in the final two seasons, the ninth and tenth seasons, though it varies whether he was in character or not in the seventh and eighth seasons, depending on episode and portrayal. Additionally, just like Timmy's Dad, he is severely overused to the point of obnoxiousness due to him becoming the writers' pet for cheap and repetitive attempts at humor. He now only has his original personality in very fewer episodes, but at the same time, can be seen as completely incompetent and the humor of living with his mother has been ramped up to destroy his competency and make him a fool.)
 * Jorgen Von Strangle (The Fairly OddParents; started out as an intimidating and lawful antagonistic fairy ruler, but as the show went on, he got dialed down to being more of a supporting role. Depending on your view, you may find this as an actual development in character. However, at times, this also made him more of a wimp as evidenced in "Teeth for Two". Then by Season 9, he was dumbed down to just a generic plot device whenever the writers needed to bastardize Da Rules.)
 * Hank Hill (King of the Hill; is known for preferring traditional things over trendy new ones. This starts to get overdone in the later seasons; case in point, "Get Your Freak Off". In this episode, Hank is more Amish than the Amish; he's almost medieval)
 * The Annoying Orange (The High Fructose Adventures of Annoying Orange; became more annoying than he was in the web series to the point where he is not even funny)
 * Jamie (TAWOG Season 3)
 * Stan Marsh (South Park; became a total dick)
 * Kyle Broflovski (South Park; became an angry patriarch and Anti-Christ (from episdoe of Fantastic Easter Special))
 * Kenny McCormick (South Park; same as Sanji)
 * Eric Cartman (South Park; became an absolute villain rather than just a jerk; not to mention, his bigotry used to be only targeted toward Kyle)
 * ''; went from a funny comic relief to a self centered jerk for no reason.)
 * Hua Mulan (Mulan (2020); became a Mary Sue and physical fighter and is apparently born as gifted.)
 * Kai (mh:besttvshows:LEGO Ninjago: Masters of Spinjitsu; Seasons 8-12, went from a short tempered, yet caring ninja to a whiny, narcissistic character
 * Jay (LEGO Ninjago: Masters of Spinjitzu; Seasons 8-onward; His timidness overtime evolved into just being utterly dim-witted)
 * Jeffy (SML 2016-now); While he was stupidly annoying, cringe-worthy and insufferable ever since his introduction into the SuperMarioLogan series, he has now more retarded, both controversial & imbecilic for infamous reasons, has been more of a cash cow for SML now, and Jeffy has also became a lot more obnoxious with his excessive, tediously dim-witted jokes being more exaggerated than before (so much that it makes Bowser Jr look harmless by comparison in some instances) and such to the point that you honestly just want to burn the darn puppet from existing or wanting to see him in endless pain in a episode.
 * Lloyd Montgomery Garmadon (LEGO Ninjago: Masters of Spinjitzu; Seasons 11-present; became more of a stereotypical leader in a kids' cartoon.)
 * Dareth (LEGO Ninjago: Masters of Spinjitzu; Seasons 8-present; became more of an attempted comic relief character than an actual comic relief character)
 * Johnny Test (Johnny Test; Seasons 4-6; went from an adventurous and rebellious boy who cared about his family to a spoiled, manipulative, whiny, and irresponsible brat)
 * Dukey (Johnny Test; Seasons 4-6; went from a reluctant yet nice talking dog who seemed like a role-model for Johnny into a yes-man Butt-Monkey like character to him, and although he does point out when Johnny does something wrong, he's perfectly willing to join him and if not, he's easily bribed with meat. He is also portrayed as a Karma Houdini at times. Not once is he blamed for putting Johnny into a handful of situations)
 * Susan and Mary Test (Johnny Test; Seasons 4-6, went from great partners in training with comedic traits with creative experiments, along with safety precautions on Johnny to having no problem experimenting on Johnny no matter how dangerous. More than half of those are for Gil. They are also hypocrites)
 * Hugh Test (Johnny Test; Seasons 4-6, went from a caring father to obviously hating Johnny, as he wanted to send him to military academy and he made him bet that if he didn't use his manners he would make him clean his room for a year and yell out that he loves his meatloaf. Those are cruel punishments that no good father would ever make his son/daughter do)
 * Bling-Bling Boy (Johnny Test; Seasons 4-6; became blander as a villain, while at the same time actually gaining character development)
 * Lego (Object Invasion; Episode 6-onward; he went from a kind, yet self conscious friend of Cup to a bossy leader who gets angry when his team loses, and he once blamed his own team for losing the challenge, and doesn't care about whatever gets in his way, which led to his elimination)
 * Danger Mouse (Danger Mouse; Became a stereotypical hero who can often be very unlikable)
 * Penfold (Danger Mouse; Went from a humorous dim-witted coward to a stereotypical bland and gay coward)
 * (Danger Mouse; Season 5 (1981)-onward; Became a dumb yet likable colonel)
 * {{Positive|Stiletto Mafiosa]] (Danger Mouse; Season 5 (1981)-onward; Went from a loyal henchman of Baron Greenback to a stupid henchman)
 * {{Positive|Narrator]] (Danger Mouse; Season 4 (1981)-Season 10 (1981); Season 1 (2015)-onward; Started off not having a problem, then started hating his job wanting to quit since the fourth seasons seventh episode Tower of Terror, saying he wanted to be on Radio 3. However, after the reboot he started tolerating his job more, being the comic relief character and a show-stealer, all while still being likable)
 * Jack Sullivan (The Last Kids on Earth; Became an unlikable idiot)
 * Fred Jones ([[mh:terribletvshows:Be Cool, Scooby-Doo!|BCSD}}; Became even more obsessed with traps to the point it permanently damages his relationship with Daphne.)
 * Daphne Blake (BSCD; Became very stupid, to the point it also damages her relationship with Fred.)
 * Velma Dinkley (BSCD; Became a know-it-all.)
 * Shaggy Rogers (BSCD; Also became very stupid, to the point where he is more stupid than cowardly)
 * Scooby-Doo (BSCD; Same as Shaggy)
 * Mrs Axzyte (Axzyte; Went from a mother who had a disapproval of games into a mom who almost beats up her kids everyday)
 * The Days Union (ROBLOX; Went from being passive myths that are against The Night Coalition to being hostile and rabid myths)
 * JackCult (ROBLOX; Same as The Days Union, he went from a nice 14 year old child that was the only safe Cult Family myth to a hostile myth)
 * BrandonCult (ROBLOX; Went from a serious myth from a corrupt family to a user that looks unrecognizable and acts nothing like his past self, and also made a disgusting game where you literally eat poop.
 * Norman Price (Fireman Sam Season 6-Present; He went from a mischievous boy who likes to play tricks to a whiny, annoying brat who does horrible things for the pettiest reasons)
 * Elvis Cridlington (Fireman Sam Season 6-Present; He went from a not to bright but friendly firefighter to an idiot who is unable to do his job right)
 * Scoop (Bob The Builder (2015 Reboot); He went from a sensible and reliable leader to a clumsy and careless goofball who messes everything up)
 * Lofty (Bob The Builder (2015 Reboot); He went from a friendly, shy coward to a sarcastic, cynical, intelligent crane who isn’t scared of anything anymore)
 * Muck (Bob The Builder (2015 Reboot); He went from being a funny but reliable vehicle, into a more dumber idiot who equally screws up like Scoop).
 * Tiny Kong (Donkey Kong; She went from a tough, small, and cute little girl who was able to shrink (hence her name), to a tall, sexual teenager, who has no personality.)
 * Lincoln Loud (The Loud House Season 4-Onwards; He became even more of a butt monkey and was more selfish than he was.)
 * Leni Loud (The Loud House; Became even dumber to the point she went to pre-school in Schooled.)
 * Baby Bop and BJ (Barney & Friends; in later seasons, Baby Bop can no longer count and the two constantly need help from Barney to learn)
 * Natsuki (DDLC: Loser MC; Became even more mean to MC)
 * Shadow The Hedgehog (Sonic Boom; the likable Anti-Hero becomes the unlikeable villain with no backstory)
 * Knuckles The Echidna (Sonic Boom; becomes an idiot tough guy)
 * Michelangelo (Teenage Mutant Ninja Turtles 2012; became even more of an annoying idiot in Season 5).
 * Big Bird (Sesame Street; Journey to Ernie made him a Steve Burns-like host)
 * Thomas the Tank Engine (Thomas & Friends; became an idiot who never pays attention and makes lots of mistakes between season 12-16.)
 * Gordon the Big Engine (Thomas & Friends, Season 8-16; 2004-2012; he was flanderized into becoming the Thomas & Friends version of Brian Griffin from Family Guy and acts like an Arrogant Character who acts like a complete jerk.)
 * Toby the Tram Engine (Thomas & Friends, Seasons 9-16; 2005-2012 He went from an old and wise engine into paranoid wimp who are too scared to do anything.)
 * Edward the Blue Engine (Thomas & Friends, Seasons 11-16; 2007-2012 Much like Toby, He went from an old and wise engine into paranoid wimp who are too scared to do anything.)
 * Henry the Green Engine (Thomas & Friends, Seasons 12-19; 2008-2015 He went from a kind and friendly gentle giant into a coward who constantly worries too much about every little thing and is too stupid to do anything right.)
 * Percy the Small Engine (Thomas & Friends, Seasons 15-16; 2011-2012 Percy went from being a naive engine, into a a idiot, dimwit and a crybaby who obsesses over Thomas' attention.)
 * Emily The Stirling Engine (Thomas & Friends, Seasons 8-10, 12-16; 2004-2006, 2008-2012 She started out as a kind and helpful engine into a bossy, naggy and selfish engine.)
 * Skarloey and Rheneas (Thomas & Friends, Seasons 9-12, They started out as kind and wise old engines into spoiled, immature brats who like to fight and argue over trains.)
 * Sir Topham Hatt(Thomas & Friends, season 19-24, went from a stern but fair father figure to the engines to a goofy idiot who acts more like a comic relief.)
 * Zoe (Sesame Street; became obsessed with ballet)
 * Blue (Blue's Clues; Blue's Room made her an annoying, overly-talkative dog)
 * Cookie Monster (Sesame Street; became an omnivore)
 * Yoshi (Yoshi Topsy-Turvy; lost his ability to make and throw eggs)
 * Chris McLean (Total Drama; Total Drama: Revenge of the Island onwards; became even more psychopathic later on in the series)
 * Courtney (Total Drama, Total Drama Action onwards; became more aggressive and bitchy)
 * DJ (Total Drama, Total Drama World Tour; became a crybaby and he complains about an "animal curse")
 * Gwen (Total Drama, Total Drama Action onwards; became more involved with her love life, and more impulsive, to the point of breaking her love interest(s), and in "All-Stars", she became more girly)
 * Duncan (Total Drama, Total Drama World Tour onwards; in "World Tour", he became more of a jerk to the point of cheating on Courtney, and in "All-Stars", his soft side gets exaggerated to the point of where he can't stop himself from being nice)
 * Lindsay (Total Drama, Total Drama All-Stars; became even more stupid to the point where she couldn't push a cart)
 * Leshawna (Total Drama, Total Drama Action onwards; in "Action", she fake-cried to her teammates about going to the spa, and proceeded to trash-talk them afterwards, and in "World Tour", she became bossier and ruder to her team)
 * Owen (Total Drama, Total Drama Action; became more unfunny and obnoxious)
 * Sierra (Total Drama, Total Drama All-Stars; became more insane and imagines Cameron as Cody)
 * Zoey (Total Drama, Total Drama All-Stars; became a mary-sue and became dumber to the point she didn't realize Mike was Mal)
 * {{Positive|Scott}} (Total Drama, Total Drama All-Stars; became dumber and more incompetent, this is a good flanderization because it made him more likable and have more funnier moments)
 * Geoff (Total Drama, Total Drama Action; he became more like Chris in the aftermaths)
 * Bridgette (Total Drama, Total Drama Action onwards; became more obsessed over Geoff, and in "World Tour", she couldn't control her hormones to the point where she cheats on him with Alejandro)
 * Trent (Total Drama, Total Drama Action; became obsessed with Gwen and the number 9)
 * Ezekiel (Total Drama, Total Drama World Tour onwards; became the Gollum of the series)
 * Cameron (Total Drama, Total Drama All-Stars; became more dumber, and didn't realize Mal exists even though Cameron is supposed to be one of the smartest characters in the series)
 * Dave (Total Drama, Total Drama: Pahkitew Island (episode 6/7-onwards), became a crybaby who was obsessed with Sky, to the point where he voted himself out in episode 9, and in the finale, he went insane and tried to kill Sky)
 * Sky (Total Drama, Total Drama: Pahkitew Island (episodes 9-ownards), became overly competitive to the point where she threw a childish temper tantrum in the finale)
 * Cody (Total Drama, Total Drama World Tour; Became a hypocrite and a massive jerk yet he redeemed himself in the end.)
 * Sanji (One Piece, Went from a really cool guy who had a weakness for women into a perverted guy who always goes blood-losing every time he sees a girl)
 * Makoto Itou (School Days and Summer/Shiny Days, a cute shy guy become an irredeemable jerk and a sexual predator.)
 * Johnny Bravo (Season 2-3) (Johnny Bravo, became dumb as a bag of rocks.)
 * Silver The Hedgehog (Sonic: Super Genesis Wave; became a cruel jerk to Sonic and everyone.)
 * The Cat in the Hat (The Wubbulous World of Dr. Seuss; started out as a trickster who only hosted the show every once in a while, but in Season 2 he became more of a Bear in the Big Blue House-like host who, like Elmo from Sesame Street, gets way too much screen time)
 * Jenna (30 Rock; became an attention whore and a self-centered diva in Season 3)
 * Eric Matthews (Boy Meets World; became dumber and dumber as the show went on starting in Season 3 to the point where he was unable to put the right shoes on his feet)
 * Caillou (Caillou Gets Grounded; became an extremely unlikable, mean-spirited, callous, sociopathic and malicious jerk who takes pleasure in constantly causing trouble for no reason and making his family's and other's lives miserable. True, he was unlikable in the original PBS series because he was very bratty and often threw temper tantrums. However, he was nowhere near as unlikable as he is here. In fact, he is so unlikable in this series that he could give his original PBS counterpart a run for his money. However, his personality can sometimes vary since there is more than one user who makes the videos.


 * Boris and Doris (Caillou Gets Grounded; became cruel and abusive parents towards Caillou who constantly ground him for ridiculously long periods of time for his bad behavior and sometimes even ground him for stupid and nonsensical reasons or for things that aren't that big a deal. They are especially abusive towards Caillou in the Punishment Day Videos because they give him over-the-top punishments. In fact, they can be just as bad as, if not sometimes even worse than Caillou. However, Doris is shown to be somewhat more caring towards Caillou than Boris. Boris also finds enjoyment of torching his son for fun. They also abuse Caillou instead of punishing him. Doris even defended him on some occasions. Like Caillou, their personalities can sometimes vary since there is more than one user who makes the videos.
 * Rosie (Caillou Gets Grounded; became a huge tattletale, Caillou's punching bag and a Mary Sue, although she is still a likable character compared to Caillou, Boris, Doris and the following two characters in Caillou Gets Grounded, which are Miss Martin and Dora. However, she can have some unlikability at times, such as by contributing to Caillou's over-the-top punishments in some of the Punishment Day Videos. Like Caillou, Boris and Doris, her personality can sometimes vary since there is more than one user who makes the videos.
 * Miss Martin (Caillou Gets Grounded; became a stereotypical mean teacher towards Caillou who treats him in a similar way to how Boris and Doris treat him, except she is not his parent and she does not ground him. Like Caillou, Boris, Doris and Rosie, her personality can sometimes vary since there is more than one user who makes the videos. The only thing about her that's better than her original counterpart is her character design. Still, this does not excuse her flanderized personality.
 * Dora (Caillou Gets Grounded; is the same as Caillou, except she was likable in the original Nick Jr. series and its sequel Dora and Friends: Into the City! Like Caillou, Boris, Doris, Rosie and Miss Martin, her personality can sometimes vary since there is more than one user who makes the videos.
 * Simba (The Lion Guard; The likeable sympathetic hero became the unlikeable stereotypical overprotective and over-caring father towards Kion and Kiara.)
 * Kiara (The Lion Guard; Became an arrogant and snobby brat.)
 * Nana (Elfen Lied; rather than improving to protect her family & friends, she becomes more of a pathetic damsel fighter in many later parts of the manga, where Kurama or Bando always saves her & Mayu.)
 * Edward Elric (Fullmetal Alchemist (2017 film); becomes a pathetic stereotypical shounen anime protagonist who lack the charm of the original Edward Elric)
 * Winry Rockbell (Fullmetal Alchemist (2017 film); she is turned into a stereotypical whiny damsel in distress who always needs saving from Edward Elric)
 * Bob Bobowski (SMG4 Season 8); although he was always obnoxious, but they were done in a hilarious way, however in 2018, he became more unlikable where in "Mario and the T-Pose Virus", he got his friends turned into T-Pose Zombies, and in the "The Rapper Bob Arc", he made a nasty speech to Boopkins to the point where he made him cry, and in the same arc he became more of a jerk to the point of dissing his friends in a rap to the point of becoming more famous)
 * Axol (SMG4 late Season 10-onwards); he went from a kind and understanding manga artist to a simp who lusts over Melony no matter what)
 * SMG4 (SMG4 season 7-onwards); he went from being the straight-man with Mario's stupidity to becoming a stereotypical meme-loving addict)
 * Princess Peach (SMG4 season 8-onwards); she became much more bossier, ruder, and selfish than her previous personality to the point where in "If Mario was In.. Fall Guys", she punished Mario after Mario gave King Bert, the original owner, the crown instead of her. This showed that she cared about herself, also in "Food Wars", she threatened to kill Mario and his friends for participating at the "party")
 * Toad (SMG4 season 8-onwards); he went from a comedic, mistreated and a slightly grumpy and sarcastic helper to an even more grumpy person and a punching bag who is treated terribly by Toadette to the point it is barely even funny.
 * Jimmy (Jimmy Two-Shoes Season 2); became more of an idiot.
 * Heloise (Jimmy Two-Shoes; Became a punching bag)
 * Reginald "Shark" Kastle (Yu-GI-Oh! Zexal) became an even more emo, yet bland tyrant who is revealed to be Barian Emperor leader, Nash. But, thinks Yuma and the others are not his friends.
 * Rio Kastle (Yu-GI-Oh! Zexal) became a bland emotionless girl who is revealed to be a Barian Emperor named Marin, who thinks Yuma and the others are not her friends.

The Overall Reason Why This Trope Sucks

 * Basically, this trope serves as reverse character development, where the characters you either love or hate (gets worse or gets ruined and lose any likability in them).

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