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Team Killer

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"Fact: The key to any successful cooperative test is trust. And as our data clearly shows, humans cannot be trusted."
Cave Johnson, Portal 2

A Team Killer is a person who murders other people on their own team.

If you are a member of a group of people dedicated to doing dangerous work, you're probably depending on the other members of your group to back you up. You might not like them, but you'll trust them at least enough not to shoot you in the back. That way, when they shoot you in the back anyhow, the betrayal just makes it all the more shocking.

Villains might do this to each other for any number of reasons because villain team-ups are generally unstable things at best. Villainous team-killing is most often done to demonstrate how evil someone is. Heroes normally don't team-kill (unless you're a particularly dark Anti-Hero), or at least believe that they shouldn't, because they depend on The Power of Friendship to bring them through things that would destroy less unified groups.

Played for Drama, a Team Killer is usually a reprehensible person, who everyone despises as a traitor. Team Killing is often a Moral Event Horizon. A pre-emptive strike to stop a party member from doing something despicable is even more tragic. Occasionally Team-killing is depicted as Necessarily Evil, but even then it's nearly always morally ambiguous at best.

Played for Laughs, a Team Killer is either Lethally Stupid, or a comedic sociopath taken to its logical extreme, and chances are pretty good that the Team-Killed deserved it.

The term originates in online multiplayer First-Person Shooter games, where certain adolescents take joy in deliberately killing their teammates. "What the hell, man? Don't team-kill!" is used as an admonishment to this very day. Team killing tends to earn the ire of server admins as well, which can result in the team killer being kicked and/or banned from the server.

Incidents of it being done on purpose generally involve Unfriendly Fire. A Team-Killer who kills his own employees might be a Bad Boss; see You Have Failed Me and You Have Outlived Your Usefulness for elaboration. In large amounts, it's We Have Reserves.

See Betrayal Tropes for a list of many of the people, reasons, and methods involved in Team Killing. For when Team Killing is done in a strictly meta-videogaming sense, see Griefer or Player Killing.

No real-life examples, please. In real life, the matter of who's on what "team" tends to be a lot less distinct than it is in fiction.


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    Anime & Manga 
  • Berserk: Both Guts and Griffith.
    • Guts, in a sympathetic and non-evil example, did this when he was just a kid to one of his adoptive father's men during a battle as revenge for raping him.
    • Griffith's case involved sacrificing his entire goddamned army to become the fifth member of the Godhand. Slightly less sympathetic.
    • Corkus did make a few pathetic attempts on Guts' life.
  • Bleach: Comes up a lot among the villains.
    • Grimmjow Jaegerjaquez lost his rank when Tousen destroyed his arm, after which he was replaced by Luppi Antenor. Once Orihime is kidnapped by Ulquiorra and Aizen has her restore Grimmjow's arm to demonstrate her ability, the first thing Grimmjow does is to officially reclaim his rank by punching a hole in Luppi before disintegrating his top half with a point-blank Cero.
    • Nnoitra Gilga attempted to kill both Nelliel and Grimmjow on separate occasions; they both survived (although Nelliel lost her memory and turned into a child due to her injuries).
    • Rudbornn Chelute's job is to slay defeated Arrancar on behalf of Aizen.
    • Haschwalth personally executes Cang Du and BG9 after they are defeated during the second Wandenreich invasion.
    • Giselle Gewelle kills her former "boss" Bambietta Basterbine in order to raise her as a zombie under her control.
    • Bazz-B shoots down the female Sternritter as they are ganging up on Ichigo so that he can steal the kill for himself. He is not too amused when three other Sternritter show up and threaten to do the same to him unless he agrees to be a team player and fight Ichigo with everyone.
    • Pepe Waccabrada tries to do this to Liltotto Lamperd by brainwashing fellow Sternritter Meninas McAllon with The Love while denying that he's trying to hog all the credit for defeating the Shinigami, made all the more pointlessly evil because the Sternritter were losing at this point. Unfortunately for him, Liltotto survives and pays him back in kind.
  • Broken Blade: Girghe had no issues backstabbing his own teammates for no reason whatsoever.
  • Dragon Ball Z: Vegeta kills Nappa, his fellow Saiyan, when the latter is defeated by Goku.
    • And the series started off with Piccolo pulling this on Goku, though partly because he had to to finish off Raditz. (He still wanted to kill Goku himself.)
    • Freeza has also been known to publicly execute his own men, either for failing him, to make an example for others, or just because they happened to be in his way.
  • Fairy Tail (also by Hiro Mashima): Brain shoots Cobra, one of his underlings, both because he was taking too long to kill Natsu and that he figured he could turn Natsu Brainwashed and Crazy to replace Cobra if he was going to be such a "failure". Cobra survives and kills Brain himself seven years later, not that the rest of The Oracion Seis cared since by that point they all realized how little Brain cared in turn about them.
  • Naruto:
    • Sasuke attempted to be a team killer.
    • Mizuki, the first antagonist of the series, was revealed to be this in a filler arc when it was shown that he killed his teammates during a mission for being weak.
    • Kakuzu often loses his temper and kills anyone nearby, which as a member of Akatsuki, usually resulted in him killing his partner. Eventually, he was paired with the immortal Hidan because even if they hated one another, Kakuzu wouldn't be able to kill him.
    • Kisame did this to a group of code-breakers from the Mist village to prevent them from falling into the enemy's hands. When he gets teamed up with Itachi, he makes note of how they both massacred their comrades.
    • Pre-Heel–Face Turn Gaara makes death threats against his teammates (who happen to be his older brother and sister) when they object to taking unnecessary risks in the Forest of Death.
  • Rave Master (by Hiro Mashima): Lance kills Bis, one of his underlings, apparently because he was taking too long to kill an enemy that Lance wanted a turn with (although according to a later chapter's title art page, Bis apparently survived).
  • In Super Dimension Fortress Macross/Robotech, Kamjin the Ally-Killer/Khyron the Backstabber earns his title not from Chronic Backstabbing Disorder, but because he tends to shoot his own men when they run or when they're in his way. To be fair, in the two occasions shown they had it coming: the first time one of his men jumped the gun in an ambush and nearly ruined it when even Kamjin/Khyron, rightly known for attacking even when unnecessary, was waiting for the right moment (he even lampshaded it); the second time, instead, some of his men were talking of deserting in the middle of a battle before Kamjin/Khyron, who reacted by shooting one to try and get the other to fall back in line (they ran, and the chase started).
  • In YuYu Hakusho, Seiryu does this to Byakko, killing him for good after Byakko somehow escaped death twice.

    Comic Books 

    Fan Works 

    Films — Animation 

    Films — Live-Action 
  • Aliens: Burke attempts to have Ripley and Newt impregnated by a facehugger in order to smuggle alien embryos back with him, which would render them ticking time bombs. Thankfully, he fails. To absolutely no one's surprise, he gets his ass mauled by one of the very xenomorphs that he sought to use.
  • In Guardians of the Galaxy (2014), Ronan kills The Other for lecturing him on showing respect in Thanos's presence.
  • In Hornets' Nest, Ignored Expert Captain von Hecht shoots SS officer Taussig after a heated spat that ends with Taussig refusing to acknowledge the danger the dam is in. He then lies to Taussig's Mook Lieutenant and says "The shock of the incident was too much for the Major."
  • In The Bridge at Remagen, Major Kreuger shoots two of his men who try to run away. He's later executed himself by the SS.
  • All of the Joker's team at the beginning of The Dark Knight.
  • In The Dirty Dozen: Next Mission, there's a very bizarre scene on the train wherein General Dietrich shoots his aide Schmidt. Apparently Schmidt was beginning to suspect Dietrich intended to assassinate Hitler, and Dietrich shoots him to keep him quiet, but this is never explicitly stated.
  • Those Wacky Nazis sure do love doing this. SS Major Kaempffer blows Captain Woermann away in the film version of The Keep. They'd just had a heated argument, and then heard gunshots outside. Although never explicitly made clear, Kaempffer had apparently been looking for an excuse to kill Woermann for constantly criticizing him. As a bonus, he also seemingly did it to steal Weormann's cross in a doomed effort to protect himself from Molasar.
  • Cypher in The Matrix, after becoming disgruntled with life in the Real World and making a deal with the Agents to re-insert him into the Matrix. He kills Switch and Apoc by unplugging them and is about to do the same thing to Neo when Tank intervenes and kills him.
  • Scanners II: The New Order: Drak is so murderously insane that he actually poses a liability to his own employers. He murders his partner Gelson in an extremely cruel manner just to hurt David, who was mind-controlling Gelson at that time.
  • Three Days of the Condor: Joe Turner works for the CIA, reading books to detect any leaks of sensitive material. While out to lunch, Turner's Bad Boss Joubert arrives with some mooks at Turner's workplace, and slaughters everyone there. Turner takes innocent Kathy Hale hostage, and hides out in her apartment until he can figure out why his superiors want him silenced forever.


  • All The Skills - A Deckbuilding LitRPG: Arthur is horrified during a scourge eruption to see some of the dragon riders turn on a comrade, killing them and taking their cards. When Horatio and Sams hear about this, they mention that it does happen, and it used to be considered perfectly normal practice to get new cards (though they've been getting better). Even at its worst, though, killing in the middle of a scourge eruption was considered unconscionable.
  • The Bible: Judas is so infamous that his name is now a synonym for "backstabbing traitor." He's the inspiration for the Finding Judas trope.
  • Gaunt's Ghosts:
    • Lijah Cuu kills troopers Bragg and Muril and tries to murder Saint Sabbatine herself before being brought down... but not before killing fan favourite Colonel Badass Colm Corbec in the crossfire.
    • Flyn Meryn crosses this line in the later books, in order to cover his criminal tracks: first he leaves Costin behind to be killed by the enemy, then shoots Gendler, Wilder, and Ezrah so that his involvement in a failed kidnapping wouldn't come to light.
  • Wormtail in Harry Potter didn't directly kill his comrades in arms, but he sold them out to the Big Bad and shifted the blame to their other friend.
  • That Time I Got Reincarnated as a Slime: Vega "The Power" does this constantly, as Vega is a Social Darwinist with a Cannibalism Superpower who figures those nifty abilities would be cool to have for himself and it would be a "waste" to just allow them to slip from his side's fingers due to a case of death. If he's feeling nice he'll at least wait until they're already dead before eating the corpse, but he'll happily kill and absorb them himself if they look too weak or injured to fight back against him.

    Live-Action TV 
  • One of the ongoing subplots in Firefly is Jayne's willingness to sell out The Team, specifically River and Simon. The subplot is resolved when Mal finds out about Jayne's attempt to turn in the Tams to the Feds on Ariel and almost throws Jayne out the airlock for it as the ship is taking off.
  • Battlestar Galactica: Tragically and repeatedly due to Cylon infiltrators.
  • On NCIS, poor Special Agent Lee, a rare semi-sympathetic version, was forced to kill Langer after a loved one was kidnapped.
  • In Black Sails, Ann kills off her crewmates in revenge for Max's rape - but it's Jack who gets the rep as "crew killer", for going along with it because the only alternative was to let Ann herself be killed.
  • The previous leader of Torchwood Three killed his entire team and then himself, leaving Jack Harkness to rebuild the team.
  • In Power Rangers Ninja Storm, Vexacus kills both Zurgane and Motodrone as part of his plan to seize control of Lothor's ship.
  • In L.A. Law, Stuart is so upset on how another paintball player is cheating — he's continuing to play after he was shot and had to forfeit his chip — that Stuart begins shooting him multiple times. Brackman tells Stuart, who is one of his teammates, to knock it off — he's proven his point — but Stuart keeps shooting the guy, so finally Brackman shoots Stuart, then says, "Give me your chip."
  • Bringing a bunch of magically gifted teenage girls together is going to cause this at best, but the most obvious example from American Horror Story: Coven is Fiona Goode, the Supreme Witch of the Coven. The first instance is because she thought Madison was the next Supreme, so Fiona killed her in order to prevent Madison from replacing her and draining her powers/life force. She later kills Nan in a deal with Papa Legba. This isn't the first time, as Myrtle rightly believes that Fiona killed the Supreme of the last generation as well in the same manner, as she killed Madison but was unable to do so.
  • In a Kids in the Hall sketch, a bank robber shoots his own mooks to show the hostage that he is serious. He ends up shooting the driver of the getaway car, leading to a crash and the escape of the hostage.
  • Horrible Histories: In the "Celtic Boast Battle" song (a rap battle between two Celtic warriors), one of them has the line:
    You're just killing the enemy - that's lazy!
    I kill my own people, I'm that crazy!

    Tabletop Games 
  • Most factions in Warhammer 40,000 do at least a little bit of Team Killing. The Orks and Chaos in particular have built societies on it. Specific characters known for being Team Killers include:
    • Mixed with Chronic Backstabbing Disorder, Kharn the Betrayer earned his name this way on Skalathrax. When night fell, the sub-subzero cold caused both sides to stop fighting and look for shelter. Kharn took offence at this lack of moral fiber and ran around setting the shelters on fire, regardless of who was in them. Through this act, Kharn singlehandedly destroyed both the World Eaters' and the Emperor's Children ability to function as a unified force (limiting them to mercenary work or small warbands), was chosen as Khorne's immortal champion, and was given the Fanon reputation of a Psychopathic Manchild who sticks melta bombs on troop transports for fun.
    • Commissars are supposed to kill the men in their company if they try to run away during a fight or somehow violate protocol, but the most rabid ones just kill willy-nilly for any reason they like.
    • Horus is worse than standard team kills because this team was his family.
  • In Warhammer Fantasy, the Skaven had this as one of their hats. They alone could target units with ranged weapons without caring if they hit their own forces. Given that Skaven Cannon Fodder were so cheap in points that We Have Reserves kicks in, a Skaven player should think nothing of trading off a few of their chaff units in exchange for hitting the enemy as well.
  • In Paranoia, everyone is expected to be this, and the game specifically tempts them with motives and opportunities aplenty.
  • Dungeons & Dragons: For 3.5 Edition's Frenzied Berserker prestige class, if all enemies were defeated before their Rage ended, they would start attacking allies.

    Video Games 
  • Pick any team-based multiplayer game where Friendly Fireproof is not enabled. Griefers are often team-killers.
    • In World of Warcraft, it's possible to use certain encounter mechanics to kill your fellow party members (for example, standing next to someone with a debuff that harms everyone nearby). Most people do this by accident, but the potential for deliberately killing someone exists.
    • One video showed a Team Fortress 2 server that briefly deactivated Friendly Fireproof. The second the players realized what had happened, they began shooting their teammates.
    • Friendly Fire can be very powerful at higher difficulties in Left 4 Dead 2, so it's a very popular tactic for griefers. Fortunately, it's just as easy to work together to keep the griefer dead until they Rage Quit (Though you'll be down a man, and with only four survivors that's quite significant on its own). Friendly fire does full damage at the highest difficulties but is reduced on lower difficulties. On easy, most weapons do no damage to teammates, with only molotovs, gas cans, and propane tanks remaining an option for would-be team killers.
    • In Planetside 2, team-killing will result in warnings and eventually your weapons being locked down. The New Conglomerate faction has a reputation for team-killing, largely because their weapons are high-damage and slow-firing, so NC troops firing wildly and accidentally hitting their allies can kill them near-instantly.
  • Many traditional RPGs such as Final Fantasy allows you to KO your own team members, and many are willing to do so for reasons such as protagonist-based Level Scaling, Can't Drop the Hero, and The Scrappy that pointlessly reduces EXP rewards. In certain Final Fantasy games, certain moves or abilities will only work if other people in the party are knocked out. This can lead to players intentionally attacking their own team just to get the effects they were seeking. However, this mechanic can also be used to one's own benefit by hitting an ally with an element they drain, including themselves.
  • It's a common element in the Disgaea games that killing too many of your own units, intentionally or not, often locks you out of the better endings.
  • Dissidia 012 has Kain playing the Well-Intentioned Extremist variant of this. He also convinces Warrior of Light to join in on the plan, and they're both chewed out quite extensively by Lightning when the betrayal is revealed. Kain has really good reasons for doing so, however; Golbez tipped him off that if the manikins defeat any of the warriors during the war, they'll be Killed Off for Real, as the gods will not be able to revive them. This is why the likes of Lightning, Kain, Vaan, Laguna, Tifa, and Yuna are not present in the first game; they died ensuring that the Rift would be closed, preventing a huge influx of manikins into the cycle of war.
  • In Baldur's Gate, if you recruit Minsc, Dynaheir, and Edwin, the former two and the latter will eventually go at it.
  • There are several points in Dragon Age: Origins where you can kill party members (or party members can kill you) as a consequence of "ethical disagreements". Also, at one point late in the game you get ambushed by a team of assassins. If Zevran is in your party and his approval isn't high enough, he'll turn on you forcing you to kill him.
  • The same can happen in another Bioware production, Mass Effect:
    • In Mass Effect: You will have a confrontation with Wrex on Virmire. If you can't successfully talk him down (easy to do if you did his Loyalty Mission, or have enough charisma) you will be forced to kill him. Alternatively, you can have Ashley do it.
    • Mass Effect 2 has what is potentially the most glaring example with Samara. You can kill her off just like that and employ her murderous daughter to fulfill the same role on the team. There is no substantial loss nor gain from doing so. Proper understanding of the mechanics of the Suicide Mission can allow you, the player, to kill any team or crew mates you feel like, but your character does not personally kill them. Finally, if you do Zaeed's Loyalty Mission after completing the main game and have at least two other squad mates, you can choose to leave him to die in a burning factory.
    • Mass Effect 3 has the most examples, and the consequences of it can be far-reaching and horrifying. You personally can kill Mordin, the Virmire survivor (or your squad mate can), Wrex, and Legion. If Grissom Academy falls to Cerberus, you'll be forced to kill a Brainwashed and Crazy Jack when you storm their base. If you gave Legion to them in the last game, you'll also have to kill him in the same base; but in this case, he was never actually your squadmate. Finally, if you recruited Morinth in the last game (only possible if you killed Samara), you'll eventually face off against a Banshee labeled Morinth. However, killing her has no additional dialogue, and is treated like just another enemy.
  • In Metal Gear Solid V, Venom Snake, Kazuhira Miller, and Revolver Ocelot worked together to command the PMCs MSF & Diamond Dogs. However, Kaz and Ocelot's relationship was strained due to ideological differences with the final straw being Ocelot hiding the fact that Venom was a Body Double, and Ocelot predicts that one of them would eventually end up killing the other over this. This came to pass over two decades later, as it's heavily implied that Ocelot was the one who murdered Miller in order to allow Liquid to impersonate him in Metal Gear Solid.
  • In Jade Empire, the player character can do this to about half of his/her party.
  • The King of Fighters:
    • Iori Yagami ended up murdering his own teammates Mature and Vice at the end of '96 due to the influence of the Riot of the Blood.
    • K9999 shanked his own teammate Foxy in the back before running off at the end of 2001. That one failed, though, and K9999 was never heard from again... until XV, that is.
  • In Metroid: Other M, there is a mysterious character known as the Deleter. It is clad in armor identical to that of the Galactic Federation soldiers Samus works with over the course of the story and was sent with the 07th Platoon to kill all witnesses to prevent them from discovering the links between the Bottle Ship and the Federation. While the subplot is dropped before being fully solved, it's heavily implied that the person in question is James Pierce, the communications expert of the squad.
  • In NieR, the final ending provides you with the choice: either kill Kainé, putting her out of her misery, or give up your own life to get rid of the Shade possessing her.
  • In Ultima V, Saduj is a joinable NPC who will attack your other party members the minute you enter combat with him in the party. This pretty much serves you right; not only is he an open supporter of King Blackthorn whom your party is actively working to overthrow, but his name is clearly "Judas" spelled backwards.
  • The Portal 2 quote atop the page comes from a preview trailer for the game, where one stick figure pushes another into a fire for no reason. The solution: robots! After rigorous trust exercises, robots are able to work together for an impressive six seconds longer. In-game, there are several co-op achievements that involve deliberately murdering your partner.
  • In Septerra Core putting certain combinations of characters in your party is ill-advised, as they will occasionally swipe at each other for real damage.
  • In both The End Times: Vermintide and its sequel, the enemy Skaven have no compunctions about hitting their allies with AOE effects if the players are also threatened by the attack. As mentioned above, this was a trait of the Skaven carried over from the Tabletop Game Warhammer. Additionally, players are Friendly Fireproof on the first two of each game's four difficulty levels, but on the higher two this protection is disabled, so you'd best hope your teammates didn't learn too many bad habits from being able to shoot through you and hurl grenades at your feet when they were starting out...
  • The Halo games' multiplayer allows players on the same team to kill each other, though doing it enough times will result in the offender being kicked out for poor sportsmanship. It's even given a special name: Betrayal.
  • A core gameplay mechanic in Defense of the Ancients: All-Stars and its sequel Dota 2. By landing the killing blow on your own team's minions before an enemy hero can, you can "deny" them, preventing the enemy from getting the experience and gold for killing the minion. It's also possible to do this to your own teammates when they're sure to die, although in both cases you can only finish them off, you can't just start beating on them when they're on full HP. However, the games do have a LOT of abilities that can damage your own allies, so dedicated Griefers can have an absolute field day of screwing over their own teammates if it suits them (most other MOBA games try to minimise the number of such abilities they include).
  • Fate/Grand Order:
    • Chen Gong's Noble Phantasm is an AoE Nuke that sacrifices a teammate, with the in-universe justification being that he's using said teammate as a bomb while attempting to pass it off as him firing an arrow. While by no means nice, it has incredible utility as both an easy way to swap out Support units after they're done firing their buffs as well as being a decently powerful attack that with the proper buffs can clear out mobs while refunding the NP Gauge. He's got a reputation for this in-universe as well, to the point one can expect someone to comment on Chen Gong's strategy of "everyone dies".
    • The Crypters serve as the Arc Villain for every Lostbelt in Cosmos in the Lostbelt and generally get along since they already were a team under Chaldea before making a Face–Heel Turn to serve the Foreign God. However, Beryl was explicitly contracted by the original head of Chaldea to serve on the team to kill any deserters as an assassin already inclined towards killing, which doesn't even require a reason beyond his personal whim. As such, it's only really a surprise to his victim that Beryl backstabs him for disliking his plan to make humanity into gods. Another member of this group, Pepe, takes the murder of his friend and leader very seriously and plans to hunt him down for his crimes. Pepe eventually inflicts Beryl with agonizing curses but at the cost of his own life. Said leader's death is what causes the remaining team members to go their separate ways to pursue their own goals now that they no longer have him to keep them together.
  • Three Forbidden Books: The Red-Haired Man is infamous for killing his fellow mercenaries to steal their loot. In the actual game, he joins a large party of mercenaries on a mission to fight off wolves attacking the forest, and eventually goes on yet another killing spree- by the end, only a few survivors are left.
  • Backstory example in Xenoblade Chronicles 3 - before becoming a member of Moebius (which gave him free reign to kill at his leisure), Blackblaze Dirk, the future Consul D was an Ax-Crazy psychopath who would kill not only Kevesi Soldiers, but also his Agnian allies. Ironically he meets his own end via effective Team Killing when Consul J willingly allows their Interlink to overload, an action that has very explosive consequences for both of them.

    Visual Novels 

    Web Animation 
  • Red vs. Blue:
    • Caboose accidentally killing Church is something of a running gag. Whenever they want Caboose to kill somebody, they just tell him to "help" the enemy. He has the largest body count of the Blue and Red Teams and all of them are team kills. He nearly depopulated a Blue Army base off-screen. Command even has a keyboard shortcut for recording Caboose's team kills: Ctrl+F+U.
      • When DEATH BATTLE! featured the Red and Blue teams duking it out, The Blue Team wins, but Caboose ends up being the only survivor of both teams. Why? Because he ends up accidentally killing Church, Tex, AND Tucker with a misplaced sniper shot.
    • Caboose accidentally killing Church (the first time)? Church's fault. Granted, it was Gamma who tortured Alpha with simulations in the past, so it could have been Gary/Gamma simply screwing with him.
      Church: Oh, my god. I'm the team-killing fucktard!
    • Sarge will take every opportunity to attempt killing Grif, to the point all the Reds emergency plans start with "shoot Grif". And the orange trooper somehow always survives.


    Web Original  
  • Things Mr. Welch Is No Longer Allowed to Do in an RPG: Mr. Welch has occasionally forged Weapons of X-Slaying to take out particularly annoying party members.
  • Vegeta (unsurprisingly — see above) in Two Saiyans Play. He's especially trigger-happy when he and Nappa play Magicka, and indulges in the Evil Laugh while doing so.
    • He did try once in Dragon Ball Z Abridged too while fighting Cooler and having Goku save his butt twice in a row.
  • Noob has shown this a couple of times:
    • In Season 4, Gaea ends up factionless in presence of her guild and a couple of fanboys of hers from the enemy faction. Her Face–Heel Turn happens via her getting her fanboys to form a Pick-Up Group with her and killing her guildmates to get reputation with her new faction.
    • In Season 5, Roxana doesn't let a bunch of members of her faction stand in the way of a chance to deal decent damage to the game's Big Bad.
    • According to the novels, this is how Lorth Kordigän ended up being Helkazard's successor. Initially, Helkazard was being replaced by a council of which Lorth Kordigän was member among many.
  • Trespassers of the Multiverse: Gaiden: Bisnif. His very skills are geared for this, and he outright attacks his own teammates and puts them at risk.
  • In Soviet Womble, his clan, Team ZF, generally tend to do this in any game that allows for team-killing. Some of it is intentional and done to troll each other, while in some cases it's just due to pure incompetence.

    Western Animation 
  • Total Drama:
    • Courtney becomes one in World Tour in order to get a chance to vote off Gwen.
    • Scott is a characteristic example in Revenge of the Island. He seems more interested in eliminating his own teammates than the other team, wanting to lull the other team into a false sense of security so they will eventually be easier to pick off. He's sneaky enough that he can pull this off without getting booted. As of All Stars, he drops the act and starts playing fair (by his standards), presumably because he knows that such a strategy wouldn't work twice now that he's on a team comprised mostly of villains (with Gwen being the Token Good Teammate).


Video Example(s):


Jack Horner

Jack accidentally shoots his own allies with his unicorn horn crossbow.

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Example of:

Main / TeamKiller

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