Character Derailment / Web Original

• Survival of the Fittest character Vesa Turunen went from an upbeat jock concerned for the well-being of his best friend to a deathseeking psycho almost entirely lacking in empathy, devoid of any real Character Development to get to this point.
• Compare The Nostalgia Critic in his last Plot Hole appearance to his state in "The Review Must Go On" a month later. The former is still snarky, but more caring, more mature and finally doing a job he loves. The latter hounds Doug into bringing him back, insults with homophobic slurs, is played uncomfortably evil and apparently his desperate desire to atone in To Boldly Flee was a paradox.
  • Chester A Bum. He was a drug-addled Nightmare Fuel Station Attendant woobie who nevertheless came off as a sweet optimistic guy with intelligent opinions hidden under the insanity. But 2013 had him go on completely lucid rants where he slut shames Former Child Stars, makes Prison Rape jokes and complains about anyone offended by racism.
  • Almost mockingly done with Santa Christ. Pre-Son of the Mask, he was the only purely good member of Channel Awesome and all the psuedo-sociopath reviewers treated him like a Team Dad. He could hold a grudge and there was an end to his patience, but he was an overall Nice Guy. In Critic's reboot however, he's bloodthirsty, stupid, quick to anger, tells Critic he's made to suffer and makes him cry, is friends with the devil and is openly told he has a sadist side.
• The title character of Chad Vader, in earlier episodes was a more direct parody of his famous, elder brother; having similar character traits and motifs, though not as intelligent, charismatic or successful as Darth Vader. In later seasons however, Chad has devolved into more of an idiotic, petty, cowardly manchild that just happens to wear armor identical to that of the infamous Sith Lord.
• Coach Z, Homestar Runner's coach. Originally, he was a well-meaning coach with a speech impediment. Now... well, the Homestar Runner fan wiki has a list of his "more than two praeblems". As said elsewhere on this wiki, though, this is arguably for the better.
• Mr. Goodman from SuperMarioLogan: Throughout most of the series, he was actually a good man, if somewhat of a weird and ditzy Cloudcuckoolander with mannerisms similar to Mr. Mackey. He was calm, reasonable, and law abiding, making sure others did the same. He did have his moments of antagonism or questionability here and there (like every other character), but moments were all they were. He also had many jobs in the series, such as being a police officer. Since the 2016 videos, his personality took a 180. He has grown to be foul-mouthed, temperamental, greedy, rude, and eventually, heartless, ruthless, evil, and cannibalistic, often willing to go great lengths to torment someone or do something completely immoral just to secure more wealth and power, or to satisfy his horrific obsession with ripping off testicles and nipples, and then eating them, as well as objectifying women and treating them as property. Also, most of his jobs consist of owning everything in sight, which gives him the power to get away with everything he does, and the cops are dirty enough to take bribes.
• Throughout Red vs. Blue, Tucker develops from a lazy Casanova Wannabe Bumbling Sidekick into a competent and heroic soldier, albeit one who was still something of a pervert and very insecure. Season 16 promptly jettisons his development and turns him back into an irresponsible pervert, while also inexplicably turning him into a massive Jerkass. He's rerailed in Season 17, only for his brief appearance in Season 18 to once again derail him, this time into an inept egomaniac easily defeated by the bad guys.
• Battle for Dream Island: With the exceptions of Ruby and Ice Cube, who have stayed rather consistent, the shift from Battle for Dream Island Again and IDFB to Battle for BFDI resulted in the entirety of FreeSmart becoming derailed, without any given explanation besides "they've always been this way". Pencil is changed from a Lovable Alpha Bitch into an oppressive tyrant, Match is changed from a stern, but reasonable Beta Bitch into a bossy Know-Nothing Know-It-All, Bubble is changed from a loyal teammate who's not afraid to speak her mind into a subservient Extreme Doormat, and Book is changed from the Only Sane Woman into a Control Freak who's quick to deride people for their seeming lack of loyalty.

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