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"The ultimate villain of the story, who's causing the problem the heroes must solve."

Note that Big Bad is not a catch-all trope for the biggest and ugliest villain of any given story. The BigBad is the one who turns out to be behind several other seemingly independent threats.
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* AGameOfGods originally had Omega as the Big Bad, who was behind all the disappearing Champions and was possessing a doomsday device. However, after he kicked the bucket, Lambda came in and some FridgeHorror came up, resulting in them going back for Echidna and confronting the true Big Bad, Digamma.
* Later seasons of ArbyNTheChief have Big Bads.
** Scott in Endgame.
** Trent Donnovich in Season 5.
** Chaos Theosis in Season 6.
* ''WebVideo/AtopTheFourthWall'' is noted for having a central antagonist for each storyline:
** "The Dr. Insano Saga": [[ExactlyWhatItSaysOnTheTin Dr.]] [[MadScientist Insano]];
** "His Heart is Steel": [[EvilTwin Mecha]][[KnightOfCerebus kara]];
** "The Dr. Linksano Saga": [[IneffectualSympatheticVillain Dr. Linksano]];
** "Linkara Lost": [[MultiversalConqueror Lord Vyce]];
** "A Story of Magic": Technically, Lord Vyce is still the [[GreaterScopeVillain main antagonist]], but [[spoiler: [[BigBadWannabe Whatley]], [[BackFromTheDead Mechakara]] and [[LiteralSplitPersonality the Magic Gun's dark side]]]] all play the role of TheHeavy / BigBadEnsemble;
** "All That He Sees, He Conquers": [[FinalBoss Lord Vyce]];
** "A Piece of the World is Missing": [[EldritchAbomination The Entity]] / [[spoiler: [[VideoGame/PokemonRedAndBlue Missingno.]]]];
** "His Blue Soul": Initially, we're led to believe that it's Mechakara, but it's revealed that the true villain of the arc is [[spoiler: Lord Vyce]];
** "Guns and Sorcery": [[AntiVillain Jaeris, the Gunslinger]], with [[EvilCounterpart Holokara]] serving as TheHeavy [[DiscOneFinalBoss for the first half of the story]] and [[spoiler: [[TheBusCameBack Dr.]] [[HijackedByGanon In]][[TookALevelInBadass sano]]]] [[FinalBoss for the climax]];
** "Ghost in the Machine": Just like in "His Blue Soul", we're led to believe that it's a different villain than it actually is; in this case, we're led to think it's The King of Worms, but once again, it's [[spoiler: Lord Vyce]];
** "The Machinations of Worms": [[HumanoidAbomination The King]] [[TheCracker of Worms]].
** "The Sleepwalker": [[Franchise/ANightmareOnElmStreet Freddy Krueger]] [[spoiler: or rather, something that took his form]].
** "The Movie": Mechakara, revived after the events of ''WebVideo/ToBoldlyFlee''.
* ''WebOriginal/{{Blackburn}}'' features Eris, a ruthless misanthropic terrorist, as the first test for the reformed Mavericks.
* ''BunnyKill'' had a different Big Bad for each installment. (each takes place in an {{alternate continuity}}, you see.)
** Smoke in ''Bunny Kill 1''.
** Dust in ''Bunny Kill 2''.
** Professor Sludge in ''Bunny Kill 3''.
** Flint in ''Bunny Kill 4''.
** Smoke again in ''Bunny Kill 5''.
* [[spoiler:Oswald Sherzikien]] in ''WebVideo/TheCartoonMan'' series, who remains HeWhoMustNotBeSeen for the duration of the first two movies.
* The big bad of ''Literature/ChaosFighters main series'' is the demon lord while ''Literature/ChaosFighters II'' is [[spoiler:Thanic Snader]].
* ''Literature/DisAcedia'' has Lazarus, a malevolent and sadistic god of magic abducting people to the titular maze.
* Bad Horse from "WebVideo/DoctorHorriblesSingAlongBlog."
** Or Dr. Horrible himself, since he's a VillainProtagonist
** Captain Hammer could count.
* The ''WebVideo/DontHugMeImScared'' series has a "Teacher" for each episode who usually fills the role of BigBad.
** Episode 1 has the Sketchbook, who tries to teach the puppets to be "creative", but only in the way it wants. It may be a subversion, however, as even it is horrified when [[spoiler:it sees the result of the puppets being creative.]]
** Episode 2 has Tony the Talking Clock. While at first appearing to be affable and somewhat goofy, he shows himself to be evil when he [[spoiler:speeds up time to rot the puppets alive]] for questioning time.
** Episode 3 has Shrignold the Butterfly, head of a [[spoiler:Love Cult who worship a giant stone face named [[TomTheDarkLord Malcolm]]]].
** Episode 4 has Colin, a talking computer who [[spoiler:traps the puppet trio in {{Cyberspace}}.]]
** Episode 5 has the Healthy Band, who tell the puppets contradicting things on what and what isn't healthy. [[spoiler:They are also implied to have killed the Bird puppet and fed him to his friend.]]
** Episode 6, the final episode, reveals [[spoiler:that a was console being used to summon and control the teachers. It also hints that Roy, the Yellow Puppet's Dad, might be the one operating it.]]
* [[WesternAnimation/MyLittlePonyFriendshipIsMagic Celestia]] takes this role in ''Roleplay/EquestriaChronicles''. [[GreaterScopeVillain Possibly.]]
* ''Literature/FineStructure'' has Oul, an OmnicidalManiac and all-around EldritchAbomination.
* In Creator/FrancisEDec's rants, the Worldwide Mad Deadly Communist Gangster Computer God, whose name tells you all you need to know about it.
* In Roleplay/TheGamersAlliance, several villains have had this role in different story arcs:
** War of the Andain: [[WellIntentionedExtremist Kagetsu Aurelac de Maar Sul (Kagetsu I)]], the Dark Andain.
** Chaos War: [[GodOfEvil Mardük]], the God of Chaos.
** Cardian War: [[TheChessmaster Jemuel]], usurper of the Cardian throne.
** Sydney Losstarot War: Initially [[EvilOverlord Sydney Losstarot]] the warlord, then his [[DragonAscendant demonic lieutenant]] [[OmnicidalManiac Yurius]].
** Ofuchi Usurpation: [[EvilSorcerer Taro Ofuchi]], the shaman.
** Manster Rebellion: [[SmugSnake Kheldar]] and [[HijackedByGanon Yurius]].
** Arawn Losstarot War: [[AntiVillain Kagetsu I]] the Dark Andain and Arawn Losstarot the warlock.
** The Great War: At first it looks like [[FourStarBadass Shogun Masamori Hyuga]] is the BigBad, then the dark cleric [[SorcerousOverlord Distreyd Thanadar XII]] becomes one, and finally the revived god [[SealedEvilInACan Mardük]] takes the mantle.
* [[TheChessmaster The Emperor]], leader of [[NebulousEvilOrganization TAROT]], has his fingers in nearly every criminal enterprise on Earth in the ''Roleplay/GlobalGuardiansPBEMUniverse''. He's also got his fingers in nearly every major legitimate business enterprise on Earth as well. But then, what do you expect of a villain who is secretly an immortal Creator/NiccoloMachiavelli?
* The mysterious phantom thief Deus serves as this for GrandmasterOfTheft.
* In ''Literature/GreekNinja'', it turns out that the no-match-for-any-human-being force that was so strong it could destroy the whole world, was in fact nothing more than a bitter human being himself, [[spoiler: who was purposefully reincarnated simply to get revenge and restore the reign of the Olympians.]]
* Michelle Clore from ''WebVideo/{{KateModern}}'' is responsible, either directly or indirectly, for nearly everything that goes wrong over the course of the series.
* ''WebAnimation/MadnessCombat'' had the Sheriff as its first BigBad, who got killed relatively quickly, followed by Jebus and eventually the Clown. Then the Auditor showed up and things ''really'' hit the fan.
* In ''WebAnimation/MarioBrothers'', King Koopa is this with his army of troops. He personally kills Luigi and plans to kill the Princess and Mario.
* ''WebVideo/MindMyGap'' has the Devil himself, Virgil S. Horn, who narrates the entire ordeal from behind the scenes before finally making his reveal at around the half way point.
* The Mysterious Somebody, Bracket Fungus and League of Mary-Sue Factories take this role for the ''WebOriginal/ProtectorsOfThePlotContinuum''. Despite being long dead, the Mysterious Somebody could be said to be the most influential BigBad, as his actions more or less shaped the PPC's identity in-story; the League is a series of offshoots from his original Mary-Sue Factory, and the organisation of the PPC itself is a reaction to his actions as its head.
* Originally it was implied that Ozzie Arcane was the Big Bad of ''WebVideo/TheQuestForGeekdom'', but it was eventually revealed to be [[spoiler: Eric Rosethorn]].
* Plenty of Big Bads in ''TheQuestportChronicles'': [[EvilSorcerer The Master of Darkness]], [[EldritchAbomination The Prince of Shadows and Illusions]], and [[spoiler:[[NoNameGiven the mage]]]].
* Machinima/RedVsBlue has a couple, actually.
** Machinima/RedVsBlueTheBloodGulchChronicles has O'Malley, though he's LaughablyEvil and comes across as a complete parody of a Big Bad.
** Machinima/RedVsBlueTheRecollection has the Meta, though he alternatively shares the spotlight with [[BigBadEnsemble C.T.]] in Recreation and [[spoiler:[[BigBadDuumvirate Washington]]]] in Revelation.
** Machinima/RedVsBlueTheProjectFreelancerSaga is setting up [[spoiler:the Director]] as the villain, particularly for the flashback episodes. The latter also reveals [[spoiler:Sigma as the true BigBad of ''Reconstruction'' and the GreaterScopeVillain of ''Recreation'' and ''Revelation'']].
** Machinima/RedVsBlueTheChorusTrilogy has [[spoiler:Control, Locus' mysterious boss. It's eventually revealed that Control is part of a third party and behind the CivilWar on Chorus as a whole, and that Felix is also working for him. The revelation that he's the Chairman of the Oversight Sub-Committee and that he funded the Insurrection makes him the GreaterScopeVillain for possibly the entire series]].
* ''A Scooby Story'' has ''Barney,'' of all characters, as the villain.
* The "dark, unidentifiable figure" from [[http://strangerstories.yolasite.com/ The Stranger]]
* Danya commands the terrorist organization in charge of ''{{Survival of the Fittest}}'', and is therefore primarily responsible for the students being abducted and forced to kill one another, even though as of yet it is unknown if he has ever directly killed anyone. This makes his status as Big Bad inarguable. [[spoiler:At least until he's killed by [[TheDogBitesBack Dorian Pello]].]]
** Each ''Survival of the Fittest'' Endgame tends to have one major villain from the students too. V1 had [[spoiler: Cody Jenson, the killer of [[TheHero Adam Dodd's]] girlfriend and best friend]], V2 had [[spoiler: Mariavel Varella, the biggest killer on the island, who further cemented her status when she killed [[TheHero Bryan Calvert's]] girlfriend,]] and V3 had [[spoiler: J.R. Rizzolo, who [[TheBadGuyWins actually ended up winning]]]].
* The Shadows from ''{{The Tale of Gaven Morren}}''.
* Taco Man, in "Taco Man: The Game Master," has certain villians. In "Taco Man Plays A Video Game," however, when he got tired of playing VideoGame/{{Bubsy}}, Taco Man had a dream of a evil Bubsy forcing Taco Man to play Bubsy 3D, and then, Taco Man realized it wasn't a dream, because the Bubsy 3D title screen was on Taco Man's TV, and the evil Bubsy forced Taco Man to play Bubsy 3D, and then, after Taco Man was treated to a death animation in Bubsy 3D, the evil Bubsy said that there was Bubsy II and Bubsy for the Jaugar, and the evil Bubsy disappears.
* Doctor Insano certainly fits this for the Website/ThatGuyWithTheGlasses team, being the ArchEnemy of [[WebVideo/AtopTheFourthWall Linkara]] and [[WebVideo/TheSpoonyExperiment The Spoony One]], as well as an enemy of many others such as [[WebVideo/TheAngryJoeShow Angry Joe]], WebVideo/TheNostalgiaCritic and PawDugan.
** For the anniversaries, WebVideo/{{Kickassia}} has [[VillainProtagonist NC himself]], WebVideo/SuburbanKnights has [[KnightOfCerebus Malachite]], and WebVideo/ToBoldlyFlee is arguable, with either [[TheChessmaster The Executor]] or [[spoiler:[[UltimateEvil Ma]]-[[WesternAnimation/CaptainPlanetAndThePlaneteers Ti.]]]]
* ThereWillBeBrawl has [[spoiler:the Butchers, Lucas and Ness, which are the Dragons to Kirby, the real BigBad. Ganondorf is the BigBadWannabe, right up until he's executed.]] Add in the {{Cosmic Horror}}s and End of Days cult and we practically have a BigBadEnsemble.
* LetsPlay/TwitchPlaysPokemon. Yes, the entire "canon" is made up of AscendedFanon, but surprisingly each instalment so far has had one character whom the Mob basically all agrees to blame for anything bad (Pokémon getting [[KilledOffForReal released]], countdown [[TimedMission timers]], etc).
** LetsPlay/TwitchPlaysPokemonRed had the Dome Fossil, a SatanicArchetype God of [[LawfulEvil Order]] and [[DemocracyIsBad Democracy]] said to be served by Bill (and therefore, by extension, the PC).
** LetsPlay/TwitchPlaysPokemonCrystal had Lord Helix, [[RogueProtagonist Big Good of the previous game]], God of [[ChaoticEvil Chaos]] and [[AnarchyIsChaos Anarchy]].
** LetsPlay/TwitchPlaysPokemonEmerald had Bill [[DragonAscendant ascend]] into this role himself as a NeutralEvil mastermind.
* There are lots of Big Bads in the ''WhateleyUniverse''
** The unseen supervillain Nimbus seems to be behind everything. The superweapons at Halloween, the deviser drug used on Merry and maybe also G-Force, and so on. Even some of the Christmas holiday adventures had Nimbus lurking somewhere behind the scenes. We still don't know what he's up to.
** That said, [[spoiler: "Señor X"]] seems to be responsible for everything that Nimbus ''isn't''. Among other things, he's indirectly responsible for [[spoiler: everything Hecate did, and by connection, half the bad stuff the Alphas were up to early on]]. More importantly though, a recent story revealed that [[spoiler: There was a very powerful and very subtle spell active on campus designed to increase tension and conflict]], and he's implied to be the one responsible -- making him [[spoiler: indirectly responsible for the actions of more or less every on-campus bad-guy to date]]. Oh and it's practically been confirmed by this point that [[spoiler: he's masquerading as a student]].
** In the recent story "Razzle Dazzle", Thomas Townsend, alias Mephisto the Mentalist, alias Cerebrex the Super-Brain, claims to have been scheming against many different heros for over eighty years. Under the alias Dominus, he's the current boss of the Syndicate. We don't know for such how much of this is true, since Thomas Townsend admits that he's an UnreliableNarrator.
** Considering how little we know about these Whateley Big Bads, it's possible that two or more of them are the same person.
* ''Literature/{{Worm}}'' at first appears to have a BigBadEnsemble, between the multitudes of supervillains, the three [[OmnicidalManiac Endbringers]], the [[PsychoForHire Slaughterhouse 9]], and [[NebulousEvilOrganization Cauldron,]] but the best contender for the role is the Simurgh, the third of the Endbringers, a malevolent, massively powerful telepath and precognitive with a fondness for DisasterDominoes and [[ManchurianAgent brainwashed pawns]], who is essentially responsible for the world being in the state that it is by sabotaging any attempts to improve the world almost before they start, and who may be TheManBehindTheMan for any of the above.
** [[spoiler: However, the real Big Bad turns out to be [[PhysicalGod Scion]], who spends most of the story looking like the BigGood.]]
* Serias fills this role in ''WebVideo/WormtoothNation''.
* ''WebAnimation/{{Xionic Madness}}'' has [[EldritchAbomination XV]] in episodes 1, 1.5 and 2, [[NonActionBigBad The Overseer]] in episode 3, and [[spoiler:Kary-08]] in episode 4.
* Israphel is this in ''[[Machinima/YogscastMinecraftSeries Shadow of]] [[Machinima/ShadowOfIsraphel Israphel]]'', having antagonized Knight_Peculier all his life, and is currently trying to destroy the world, and we ''still'' don't know who he actually is. [[spoiler:Then it turns out he may have actually been working for [[GreaterScopeVillain the Sand God/Jade Sentinel]]]], but [[LeftHanging we may never know]].
* The Medic who leads oWn in ''Machinima/CultOfPersonality''. The series begins with [[StartOfDarkness him being fired from the BLU team and forging his own organization.]] He's personally leading a campaign to destroy RED and BLU.
* In the WebAnimation/MyLittlePonyMeets, in The Joker Meets My Little Pony, Zod and Chrysalis in Superman Meets My Little Pony, Slenderman in ??? Meets My Little Pony
* Dr. Josh Sherman serves as the Big Bad in the pilot story of ''Literature/LightningDust''.
* The Executive is shaping up to be this in WebOriginal/FalloutIsDragons.
* This is the way that the LetsPlay/{{Yogscast}} [[Machinima/YogscastMinecraftSeries Minecraft series]] appears to be heading. The taint is spreading across vast parts of the server, but thus far LetsPlay/HatFilms are the dominant sentient threat, constantly antagonising the other players on the server (such as LetsPlay/LewisBrindley and LetsPlay/{{Sjin}}) by claim of owning their land through various deeds. They're also going through a process of re-arming with ballistic missiles, and the process eventually escalates to open war with LetsPlay/KimRichards and LetsPlay/DuncanJones.
* This role is occupied by whoever currently controls Team Noir in ''Roleplay/{{Toro League}}''. This was originally Shadow X, though later the role was taken over by the since-defeated-but-not-yet-replaced Reaper Z.
* Deathstroke is the main villain for Season 1 of ''WebVideo/NightwingTheSeries''.
* The Big Bad of the ''WebVideo/DontHugMeImScared'' series is [[spoiler:Roy, who created the DHMIS universe to punish Yellow Guy]]. Each instalment has its own Big Bad, and they are collectively known as "the Teachers".
** The original Don't Hug Me, I'm Scared/"Creativity": Sketchbook... [[AmbiguouslyEvil kinda; it's unclear if they were actually evil or if things just spiralled out of their control.]]
** 2/"Time": Tony the Talking Clock
** The "HELP" videos: The Money Man (not a teacher)
** 3/"Love": Shrignold, with Malcolm as GreaterScopeVillain
** 4/"Computers": Collin, [[spoiler:maybe. The ending to the fifth implies that [[GoodAllAlong he was actually trying to free the puppets from the lessons the whole time]]]]
** 5/"Health": The Healthy Band, with the steak being the most prominent. They're also the biggest threat in the series, since [[spoiler:neither Sketchbook, Tony, the Money Man, Shrignold, nor Collin killed a puppet. The Healthy Band appears to have killed Duck Guy.]] In a more literal sense, the steak and fridge are the largest teachers yet.
** 6/"Dreams": [[spoiler:Roy himself, who is also revealed to be the BigBad of the series]]. The Lamp is set up as a decoy BigBad.
* ''Podcast/WelcomeToNightVale'': Strex Corp in Year Two, with the Smiling God as the BiggerBad.
** [[spoiler: [[AnimalisticAbomination The beagle puppy]]]] in Year Four.
* In ''WebVideo/YandereHighSchool,'' Yuki. She killed the first main teacher, Gareth's wife, leading to [[DrivenToSuicide his haunting of the school,]] because Taurtis jokingly had an interest in her. She also framed Chan-Yandere for running over Salex, Taurtis' girlfriend, and led her father's [[YakuZa yakuza]] against Sam and Taurtis in the first season's finale. The showdown resulted in Sam, Taurtis, Grian, and Dom having to go into the witness protection program and move.
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