All three games have their own character pages too:
* ''Characters/BioShock1''
* ''Characters/BioShock2''
* ''Characters/BioShockInfinite''


Comprising the vast majority of the surviving members of Rapture's population, the "splicers" are the main enemies faced in the series. Horribly mutated by ADAM abuse, Splicers are barely human, completely insane and won't hesitate to attack the player on sight.

Each Splicer is defined by two different traits: their character model, which determines their overall appearance and what dialogue lines they have, and their splicer type, which determines their combat abilities; any possible combination of the two can be encountered. The exceptions to this are Brute, who has his own type, and Crawler, who is always a "spider" type.

[[WMG: Overall Tropes]]
* ApologeticAttacker: Some splicers act like this. Others are genuinely hostile towards you.
* AxCrazy: As conditions deteriorate, the splicers are cutting up anyone, living or dead, and digging around in their innards for ADAM. Or, if all else fails, lying in wait for a Little Sister to come along and harvest your corpse.
* BodyHorror: All of the Splicers have been hideously disfigured as a result of oversplicing: many sport visible infections, massive tumours, club feet, distended stomachs, TaintedVeins, and distorted facial features.
** Having exhausted all of Rapture's food, the ''Bioshock 2'' splicers are more emaciated and, in some cases, the bone structure remodels itself to add extra fingers, or even talons.
** The Crawlers manage to top all of this by way of a complete skeletal overhaul: their skulls are horribly misshapen--and noticeably ''cracked''--their limbs are long and twisted, they've got only one eye left for each of them, and the skin has pulled almost completely away from their teeth.
* ClingyCostume: Atlas guesses that the splicers are still wearing their masquerade outfits to hide their deformities. In ''[=BioShock=] 2'', the splicers are even more misshapen, with their bodies having molded to the shape of clothes and footwear; hence, Toasty's head tumor (growing over the bandage) and Lady Smith's gazelle-like feet (caused by wearing pumps). Tumors are oozing through the holes in their garments, as though the clothes are now bonded to them.
* TheCorruption: ADAM acts a benign form of cancer, killing off the host's cells and replacing them with healthy-but-randomized genes that promote superhuman feats. However, the stem cells eventually consume too much of the body, causing disfigurements, mental problems and, one assumes, ''exquisite'' pain. ("It hurts to breathe!") In the end, the increasing demands on the junkies' bodies means that they will have to take more and more ADAM just to function.
* EnemyChatter: They often talk amongst themselves, and they all taunt the player.
* FacialHorror / MixAndMatchMan: Casualties of the war (or pedestrians who spliced a few too many times) went directly to Steinman's to fix their injuries. More often than not, this meant hastily stapling their wounds shut, or grafting someone else's forehead over theirs. A field medic with a rusty scalpel could probably do a neater job. And Heaven help you if you were a woman; that's when Steinman decided to [[GlasgowGrin get creative]].
* HatePlague: There may be few splicers who ''aren't'' characteristically violent, but you wouldn't know it, since Ryan is pumping pheromones into the air system to drive them into a frenzy. It was Dr. Suchong's inspiration to control the citizenry through mental suggestion, but Ryan signed off on it. Now, they are little more than a hyena pack pointed squarely in Jack's direction.
* HeWhoFightsMonsters: At least a good chunk of the splicers were originally people who tried to ''fend them off'' with ADAM, only to end up becoming one as well.
* HearingVoices: An idle splicer will stand around talking to... no one in particular, actually. Some of them are hallucinating about life before the war.
* HooksAndCrooks: Spider Splicers use them, even using their plasmids to make them red hot. And also [[ThrowingYourSwordAlwaysWorks throwing them]].
* InelegantBlubbering: When Splicers cry--and given how broken they are, that's more often than you think--they don't cry prettily.
* TheInsomniac: Several splicers complain about not having slept in weeks, possibly due to the pain (or as a side-effect of the plasmids). This accounts for their lack of concentration, hallucinations, and perhaps even insanity.
* LaughablyEvil: Possibly as a means to avert DarknessInducedAudienceApathy. This is one glum storyline.
* LaughingMad: Often.
* MadnessMakeover: The multiplayer characters are as good an example as any. Each has their own backstory, plus character portraits from before ''and'' after they joined the rebellion. They're still wearing the same clothes, except in tatters, and they look like they've been hit by a Mack truck.
* ManufacturingVictims: Ironically, many of them injected Plasmids as a means of defense ''against'' the splicers.
* {{Mook}}: Thuggish and Leadhead Splicers. They're [[TheGoomba not even worth hypnotizing]], frankly. Leadhead Splicers get a lot more dangerous in the second game after they start packing Tommy guns and shotguns.
** EliteMooks: Nitro Splicers.
** GiantMook: Brute Splicers.
** SuperpoweredMooks: Spider Splicers and Houdini Splicers.
* MalevolentMaskedMen: All Splicers wear masks to cover their deformities, with the exception of the Brutes.
* NightmareFace: The concept art for the Splicers was based on Project Facade, a pioneering clinic which specialized in plastic surgery of the face. Most of its patients were WWI vets who sustained gruesome facial injuries.
* SanitySlippage: Excessive ADAM consumption didn't exactly do wonders for one's mental well-being. As a result, most (if not ''every single splicer'') are either completely insane or are [[AndIMustScream self-conscious enough to realize just how far gone they've become]].
* SuicidalOverconfidence: On account of being too far gone for any sense of self-preservation to remain, Splicers will engage any living thing between them and ADAM, even if that means incurring the wrath of a Big Daddy.
* SympatheticMurderer: What else do you call normal people who went crazy and deformed because of a magical drug?
* TalkativeLoon: It can be worth sneaking up on a Splicer just to hear what they're saying to themselves.
** NoIndoorVoice: And you ''will'' hear them from a long way off. Most don't have the presence of mind to whisper, and they'd rather shout at old memories or just the city itself.
* TragicMonster: As other tropes here indicate, you really can and likely do feel sorry for the Splicers, who were once just ordinary people before the "revolutionary" wonder-drug of choice in Rapture drove them insane and left them as deformed mutants. Add in that many would have become Splicers by accident by overdosing on Plasmids and Tonics to ''fight'' Splicers, and it just gets worse.
* WhatMeasureIsAMook: Prior to becoming addicted to ADAM, the splicers were likely average, everyday citizens of Rapture. With the bathyspheres put on permanent lockdown by Ryan, there was no escape for them.
-->'''[=McDonagh=]''': The dead rot in the streets, and Johnny and Janey Citizen are lined up round the block for Plasmids. Anything to help fend off the rabble.
* WithGreatPowerComesGreatInsanity: The automated public address system throughout Rapture reminds citizens to use [=ADAM=] in moderation. "Remember, a careful splicer is a ''happy'' splicer!" Obviously, they didn't listen.
* ZergRush: Individually, the Splicers aren't that dangerous. But there's a lot of them and they have no concept of self-preservation, so they can generally bring down any opponent through force of numbers and sheer determination.

->'''Voiced by:''' Rick Wasserman

--> ''"I'm an 'ard man, mate. That's how it is down 'ere: survival of the 'ardest man."''

Self-styled top of Rapture's food chain, the Brute has spliced himself into a musclebound gorilla of a human being; on top of being overbuilt, he's also aggressive, pugnacious, coarse, violently homophobic, and very ''very'' vocal about it. Appearing exclusively in the second game, he also seems to be the only member of Sofia Lamb's "Rapture Family" who isn't motivated by religious fervor, but an addiction to violence.
* ArmouredClosetGay: In spite of all his homophobia, the Brute can be heard making a few interesting remarks to the opposite effect when he thinks nobody's listening; and when he's under the effects of the Hypnotize plasmid, he'll start ''flirting'' with Delta.
-->'''Brute:''' Some thoughts are just wrong... ''Nasty'' thoughts... Gotta stomp them thoughts '''''right out'''''!
** He also expresses his desire for a "best mate" but he thinks everyone will see him as being openly gay. [[SuspiciouslySpecificDenial Which he isn't, of course]].
* BaddieFlattery: Of course, while hypnotized, he starts complimenting Delta a great deal.
-->"I'd look a poof in that suit, but you carry it."
* TheBerserker: Splicers aren't the type to back down, but this guy has the strength needed to pretty much negate that weakness.
* BaldOfEvil: He's completely hairless on top of his head.
* BloodKnight: Fighting is everything to this guy.
* TheBrute: It's his name, after all.
* ClusterFBomb: Prone to these.
* CountryMatters: The Brute is notable in that he's the only Splicer to use this particular expletive. [[ValuesDissonance Presumably he can get away with it because he's British]].
* DoubleEntendre: A lot of his lines are open to homoerotic interpretations:
-->"Holed you good and proper."
-->"I'm top man down here!"
-->"Do this like the Romans!"
-->"A million little pricks- fuck, fuck! Leave me be!" (when attacked by bees)
* EvilBrit: They have British accents and wear somewhat "British" clothing (albeit in scraps because of their overbuilt frames), and they're some of the nastiest Splicers you'll fight, in terms of both personality and threat level.
* FamousLastWords:
** "Fuckin'... ''poof..."''
** "I feel... nnn... nothin'..."
* HairTriggerTemper: Like all splicers, but he certainly takes the cake.
* HatesBeingTouched: Apparently a side-effect of his homophobia. He says he could have been a wrestler, but he prefers boxing since wrestling involves two sweaty, muscular men touching each other too much for his liking.
* HorribleJudgeOfCharacter: In the context of his homophobia, ''Sander Cohen'' apparently passes his test of what he thinks a proper man should be like.
* HotBlooded
* {{Jerkass}}: Even by Splicer standards he's abrasive, coarse and pugnacious.
* LargeAndInCharge: With the exception of Sofia Lamb and the other lieutenants, the Brutes are generally the highest-ranking members of the family. It's a good thing the Brutes weren't around for the events of the first game; they could take on a Big Daddy and probably ''win''.
* LargeHam: Splicers aren't exactly subtle or rational by any standard, but Brutes are particularly over the top in screaming and ranting at the top of their longs.
* LightningBruiser: They are very fast and agile for their size and will sometimes [[FoeTossingCharge charge at the player]].
* MacGyvering: Apparently, the Brutes are created through a mixture of leftover Gene Tonics, Sports Boost and Armored Shell being the most obvious components.
* ManOnFire: In Minerva's Den, Fiery Brutes make their appearance. They are surrounded by an orange glow, and leave flaming footprints wherever they walk. Also, when struck with a melee attack, these Brutes expel fire, so you must take them down from a distance. Obviously, they are completely immune to all fire-based attacks. In the main game, one Brute in Siren Alley will emerge on fire, on account of having torn a gas main while breaking in.
* MonsterProgenitor: Leo Hartwig, a GeniusBruiser and ProfessorGuineaPig who created the process of creating the Brutes to survive life in Pauper's Drop, before joining the Rapture family and becoming a bodyguard to Grace Holloway.
* NiceHat: Brutes are often seen wearing bowlers.
* PoliticallyIncorrectVillain: They are outrageously vocal homophobes. Which is kind of odd, as ''VideoGame/BioShockInfinite: Burial at Sea - Episode One'' establishes that Rapture was surprisingly progressive regarding homosexuality for its time period before the civil war.
* ScreamingWarrior: Like all Splicers, they howl and bellow when fighting.
* SirSwearsALot: Out of all the Splicers, he undoubtedly uses the most foul language. In fact, when charging, his only line is a deafening roar of "FUCK''EEEEEEERRR!"''
* [[SmarterThanYouLook Smarter Than He Looks]]: There are few hints that the Brute is a lot cleverer than most of his dialogue would imply; he can be heard talking about the necessity of bone density to back up the muscle mass he's gained, and some of his dialogue can be surprisingly eloquent. Plus, Leo Hartwig, the original Brute, cobbled together the Brute-splicing formula himself, and goes into battle accompanied by hacked security bots. It helps that with his great strength splicing up to get stronger isn't much of an issue, letting him keep a clearer head than the rest.
* SuperStrength: Strong enough to match a Big Daddy in a physical brawl.
* UnstoppableRage: Always pissed, and ready to take it out on you. He can be stopped, if you kill him of course.
* YouAreWhatYouHate: See ArmoredClosetGay above.

->'''Voiced by:''' Creator/YuriLowenthal


Though the Crawler is a Spider Splicer by default, he tends to offset the stealth aspect of the character by being the noisiest of all enemies in ''[=BioShock=] 2'', with the possible exception of the Big Sister. More disfigured than any other splicer in Rapture and even more deranged, the Crawler is very vocal about his problems, screaming and wailing with every move, sometimes even accusing the player of being a figment of his imagination.
* AndIMustScream: All Splicers are in their own private hell, but the Crawler is the most vocal about how much his extremely deformed body and shattered mind ''hurt''.
* AntiVillain: Out of all of the Splicers, the Crawler is one of the few that just seem pitiable and sad more than anything else.
* FamousLastWords: "Finally... sleep..."
* FourFingeredHand: Almost. His pinky finger on each hand has atrophied considerably, in contrast to the rest of his fingers which have grown freakishly long. His feet on the other hand...
* HappyPlace: The Crawler reacts to the hypnotise Plasmid very differently to other targets in the game; while most Splicers under the influence see the player as a friend, the Crawler sees the whole experience as one of Sofia Lamb's therapy sessions, where he evidently feels most comfortable.
* InkblotTest: While hallucinating a Rorschach test, Crawler declines to tell Dr. Lamb what he sees ("It ain't decent!") before finally spilling the beans.
-->"I see two dogs, alright? Copulatin'!"
* TheInsomniac: Type C--it's driven him even ''further'' into insanity.
* IJustWantToBeNormal: "I splice up strong, fast, tall. Why can't I splice up ''normal?!"''
* MadnessMantra: "I hear 'em when I'm asleep... when I'm awake... when I'm asleep, when I'm awake, when I'm asleep, when I'm awake, when I'm asleep, when I'm awake, when I'm asleep when I'm awakewhenimasleepwhenimawake ARRRRGGHHH!"
* ManufacturingVictims: Apparently, as a very devout member of the Rapture Family, he's hopelessly addicted to Sofia Lamb's therapy.
* NervousWreck: Paranoia and delusions have utterly shattered any sense of sanity the Crawler has, leaving him constantly screaming, wailing and gibbering about how much he's suffering.
* NoodlePeople: Used for horror; the fact of the matter that humans ''shouldn't be that thin'' is evidence of just how deformed they are.
* PleaseWakeUp: The Crawler sometimes treats dead bodies as though they're only sleeping, often recommending they join the Family when they wake up. Also, one dialogue option has them do this for the player.
--> "They'll straighten ya right out, pal! Get some rest."
* ScreamingWarrior: Yeah, anyone who goes into battle screaming "help me" has serious problems.
* WallCrawl: His most defining trait is his ability to scale walls and ceilings.

[[WMG:Baby Jane]]
->'''Voiced by:''' C.G. Walker (Credited as Cassandra Grae)

-->''"Came here to be a star! Came here to be a star- Not too late, not too late!"''

Evidently in show business before the Civil War, the Baby Jane splicer is still trying to find work in the theatre, and can often be heard insisting that she's a star. Sometimes, she experiences moments of lucidity when she realises that Rapture is no longer fit for theatrical performances and her face has been ruined by constant splicing; unfortunately, she decides to take out her frustrations on the player.
* ApologeticAttacker: If she manages to kill you, Baby Jane may apologize profusely. Then again, she's just as likely to blame it on another 'accident'.
-->(sobbing) "They'll be okay, right?! I mean, it was just- it was just an accident!"
* CastingCouch: Judging by Jane's chatter, you can't find work in Fort Frolic unless you seduce Sander Cohen ([[CampGay good luck]]) or [[DirtyOldMan Andrew Ryan]].
* {{Chorus Girl|s}}: "A-five six, seven eight, A-five six, seven eight, [--Seven eight--]..."
* CuteButCacophonic: Less harsh on the eyes, but NoIndoorVoice at all.
* CuteMonsterGirl: Undoubtedly the most attractive of the Splicers, even though she's just as loony as the others. In ''Bioshock 2'', the left side of her body is abnormally long and her mouth is locked in a rictus grin, subverting this somewhat.
* FountainOfYouth: She sees the Little Sisters as a means to become young and beautiful again.
-->"Your youth! I need it!"
* MurderTheHypotenuse: Apparently she's left rivals for various roles floating in salt ponds. In the second game, you can see her try to do this to Big Sisters. Keyword ''try''.
* ShoutOut: To ''Film/WhateverHappenedToBabyJane,'' of course.
* SkewedPriorities: "Close the theater?!? Why? Because there's a ''war'' on? '''''BASTARDS!'''''"
* SmallNameBigEgo: She insists that she's famous, and the best at her job, and gets offended by anything more attractive than her.
* SophisticatedAsHell: The ''Bioshock 2'' model quotemines [[{{Hamlet}} Ophelia]] whenever she happens upon a body. She might also cackle, "Alas poor Yorick!", if in a cheery mood.
* UncannyValleyMakeup: Close examination shows that her makeup consists of a layer of greasepaint and lipstick smeared [[ComicBook/TheJoker Jokerishly]] over her face.
* WaitingForABreak: If you hypnotize a Baby Jane, she assumes you're a casting director.
-->"An acting job? Wow, it's been so long..." ''(starts to cry)''
* WhiteDwarfStarlet: Though it's fairly clear she was never famous to begin with.

->'''Voiced by:''' Adam Sietz

-->''"These assholes don't get it. I'm a winner; gonna show Ryan and all of 'em."''

A businessman of some sort, the Breadwinner is under the delusion that Rapture's steady collapse is "just a bad quarter," and he still has a chance to make it big- when he isn't under the impression that he's already made it to the top.
* CasanovaWannabe: Definitely not to the same extent as Toasty, but he still sometimes mutters to himself about how he's got to find some ladies to "carry on the family name" and "rebuild the population".
* CorruptCorporateExecutive: Well, he certainly was at some point.
* DelusionsOfEloquence: "Business acumen…? Eh-sure! I got loads! Uh... acumen!"
* {{Determinator}}: "Came down here with a dream... That dream's gonna happen..."
* ICouldaBeenAContender: Thoroughly averted; the Breadwinner may waver a bit in his convictions, but he never really stops believing that his fortune is still on the rise.
* INeedAFreakingDrink: While being frozen, the Breadwinner starts muttering about how he needs a hot toddy- or a vodka.
* KingOfTown: In spite of his insistence to the contrary, it's not likely that the Breadwinner ever wielded the power he wants- or claims to have.
* SharpDressedMan: Still wears an expensive pinstriped suit, and is on the verge of a screaming breakdown over [[DoomedNewClothes how filthy it's gotten]].
* SmallNameBigEgo: "I’m the goddamn alpha male."
* StrawMisogynist: He uses "woman" as an insult, and will make lewd catcalls at a Big Sister if he fights her.

->'''Voiced by:''' Marcelo Tubert (VideoGame/BioShock2)

--> ''"They want what we got. And we gotta defend what's ours!"''

An elderly security guard, Ducky differs from most of the other Splicers in that, rather than being delusional or lost in his own private fantasy, he's just aggressive and paranoid -- not to mention insanely nationalistic. By ''2'', his dialogue and personality have merged with the "Waders" Splicer model, replacing the latter and leaving Ducky as a raving zealot hunting down the Lamb to be "sacrificed".

* AsTheGoodBookSays: His dialogue in ''2'' heavily consists of religious rants and quoting biblical verses.
* BadassGrandpa: He may be old, but he's still capable of kicking ass, even posing a challenge to an Alpha Series Big Daddy. Helps that he's full of the local SuperSerum of choice, though.
* BerserkButton: In spite of his nationalism, Ducky has a very obvious hate-on for Rapture's leaders, especially exploitative ones like Ryan and Fontaine.
--> "You can't take it from me, Ryan! ''I earned it, I EARNED IT!"''
* BurnTheWitch: As religious in ''2'' as Waders. He thinks Delta is TheAntichrist, and that Big Sisters, especially Eleanor, are actual witches.
--> "Burn ye utterly with fire!"
--> "Burn! BURN!"
* CityGuards: Doomed to keep patrolling Rapture until the very end.
* ConspiracyTheorist: "I wanna think. But every time I do... they '''hear''' it!"
* CowboyCop
* TheCuckoolanderWasRight: At one point, exclaims that [[spoiler: Fontaine isn't dead]] and that [[spoiler: Atlas and Fontaine are the same]].
* MeaningfulName: Named for his duckbill hat.
* PoliticallyIncorrectVillain: His rants and rambles often include "conservative religious" type slurs, such as his denigrations of mixed-race couples/individuals and non-Protestant Christians.
* ProperlyParanoid: At times. They seem to be more self-aware than the other Splicers, but are still not remotely sane in the least
* [[RacistGrandma Racist Grandpa]]: Can be heard snarling furiously about "parasites," papists, and race-mixers.
* YouAreFat: Calls Big Daddies "whales" when attacking them.[[note]]Of course, it's also because of the noises they make.[[/note]]

[[WMG:Dr. Grossman]]
->'''Voiced by:''' J.G. Hertzler

--> ''"I swore an oath to do no harm, and I... mostly... meant it."''

A surgeon in the mold of Dr. Steinman (they share the same basic model), Dr. Grossman's dialogue reveals that he's not exactly the most professional in the business: he freely admits making up answers to questions posed by concerned patients, and forgetting what his various medical supplies actually do. And worse still, he's a germophobe.
* BackAlleyDoctor: In the sense that if he ever qualified for a medical degree, he's long since lost the qualifications to splicing-induced insanity.
* BadBoss: If the way he treats his imaginary "nurses" is any indication.
* BloodLust: He shows every sign of enjoying killing, more so than most other Splicers even when they kill you.
* ChildHater: Despises children on general principle, claiming that babies are born "covered in death," and professing utter loathing for the Little Sisters.
** He mentions having sometimes "pushed instead of pulled" and "everyone makes mistakes!" This implies that he tried pushing a newborn back into their mother's womb, to little success.
** And he hasn't changed much in the sequel.
--> "'Oh my mommy, my mommy, where's she gone?' Bah! You'll be with her soon enough, brat!"
* ControlFreak: Everything must go by his (utterly bizarre) rules, period.
* DeadlyDoctor: It's implied he wasn't much of a "healer" before the Civil War, but with splicing having driven him insane, he actively employs his talents to butcher anyone who catches his attention.
* DrJerk: "The men all complain about their virility! Hmph! Well, I can make them soft, and sometimes I ''do''."
* DressedToHeal: But he's not going to.
* EvilBrit: Like the Brute, he has both a British accent and a ''seriously'' {{Jerkass}} personality.
* {{Expy}}: Of the William S. Burroughs character [[Literature/NakedLunch Dr. Benway]], possibly.
* KryptoniteIsEverywhere: Taken to ludicrous levels with his rampant germophobia:
--> "There's semen on everything! '''EVERYTHING!'''
* MadDoctor: In the sense that he's both insane ''and'' perpetually angry at everything.
* MeanBoss: Occasionally admits to putting poison in his nurses' drinks.
-->"The nurses don't like me... they're ''judgmental!''"
* NeatFreak: Can often be heard grumbling about how dirty or unhygienic Rapture now is.
--> "Can't somebody clean this place up? Scrub it down! It's crawling! CRAWLING!"
* ScrewTheRulesIMakeThem: "When is a fever ''not'' a fever? WHEN I SAY IT ISN'T!"
* TrustMeImAnX: When searching for a character in hiding, he can be heard yelling, "Don't worry, I'm a ''[[BlatantLies professional]]!"''
* WeaksauceWeakness: His germophobia, which has him claiming that he can see death floating in the air- and that he can actually ''see'' bacteria.
-->"'Bacteria are microscopic.' Heh! That's what they '''[[ConspiracyTheorist want]]''' you to think."
* YouHaveFailedMe: He'll see a Big Sister as one of his "nurses", and attacks her while ranting about how he doesn't need her services anymore.

[[WMG:Lady Smith]]
->'''Voiced by:''' Susanne Blakeslee

-->''"Don't you disrespect me!"''

Before the Civil War, Lady Smith was one of the Rapture upper crust. She still dresses the part, but her clothes are not in good repair. She clings to her social status, constantly turning her nose up at the world around her and holding onto her former station, even though the civil structure that created said station is gone.
* BattleaxeNurse: She can be seen wearing a nurse's dress and cap in the Medical Pavilion.
* BrattyTeenageDaughter: Probably wasn't one herself, but she will see a Big Sister as such.
* EvenEvilHasLovedOnes: She may be a horrid old elitist pearl-clutcher, but she seems to miss her children.
* NeatFreak: She treats every room as if it's her fancy apartment, and keeps calling for "[[TheJeeves Bates]]".
* PoliticallyIncorrectVillain: As appropriate for a rich woman mentally trapped before New Year's Eve 1959, she's kind of racist.
-->"Charles? I think the Negro cook's been stealing! It's always like that with the coloreds-Take, Take, Take!"
* PrinciplesZealot: Like the other splicers, Lady Smith is emaciated and insomniac, but still refuses to identify with proletariats.
-->"I may be hungry, but I'll not beg. I'm above it. ''I'll not beg!''"
* RichBitch: Used to be rich, still a huge bitch.
* RichesToRags: "Mending my own clothes. Who'd've thought, me, of all people?"

->'''Voiced by:''' Joshua Gomez

-->''"Where are you?! They'll kill me if I don't find you!"''

A teenaged splicer and member of one of Rapture's football teams, Pigskin is more lucid than most of the Splicers -- apart from his slightly desperate belief that his parents and/or Mr. Ryan are somewhere in the area. Nevertheless, he still suffers considerable pain, both from the deformities induced by ADAM overdosing, and from his fellow Splicers.

* AntiVillain: All of his chatter suggests a confused kid who has no idea what he's doing, and is only trying to make his father happy.
* ApologeticAttacker: Poor Pigskin insists that he's only attacking you because his bosses are making him, and he'd rather go to bed.
* CallingTheOldManOut: One of his attack lines is "I ''AM'' 'GOOD ENOUGH'!"
** "There! He's dead! Can I go home now?!?"
* JerkJock: Thoroughly averted. Even though he's trying to kill you, he's only doing so because he's insane and believes that "they" are keeping him from returning to his parents until he does. Plus, as he hints, he's hopped up on the rage-inducing pheromones like all other Splicers.
* MadnessMantra: "They make me hate everything I see! ''They make me hate everything I see! THEY MAKE ME HATE EVERYTHING I SEE!'' They make me hate everything I see..."
** "I do what I'm told! I just do what I'm told! I always just do what I'm told!"
** "I just wanna go to sleep... Just wanna go to sleep, I just wanna go to sleep..."
* MeaningfulName: Pigskin not only refers to football, but to his thick, leathery skin, and his broken nose which resembles a pig's.

[[WMG: Rosebud]]
->'''Voiced by:''' Betsy Foldes (Credited as Elizabeth Foldes-Meiman)

-->''"Can't you take... the neighbor's girl instead?"''

At some point in the past, Rosebud's daughter was taken to become a Little Sister. She's never recovered from the experience, and spends most of her time trapped in flashbacks of the past. She often mistakes Jack for her child, when not mistaking him for the people who ''took'' her child; either way, she attacks, either to discipline her baby or to get revenge on the men who took her.

* AmazingFreakingGrace: She sometimes sings it. In fact, she'll sing the ''entire'' song if given the chance.
* DespairEventHorizon: They took her daughter and her soul at the same time.
* EvenEvilHasLovedOnes: She still desperately look for her lost little one and is willing to take Delta's (current) Little Sister as a replacement.
* EyeScream: Rosebud is called that because the right side of her face is covered in a massive tumor.
* LadyDrunk: Sounds like one. Possibly also DrowningMySorrows.
* MamaBear: She couldn't be one when it counted, so she tries to be one now.
* MeaningfulName: The [[FacialHorror growth on her face?]] It's called a "roseate tumor".
* WrenchWench: Dresses like a 1940s era 'Rosie the riveter' type factory worker.
* YouAreFat: Screams "What's under the suit, fatty?" at Big Daddies

->'''Voiced by:''' Marcelo Tubert

-->''"You're the top, you're the Louvre Museum..."''

A crude, lecherous Splicer, Toasty has delusions of being a lady's man. Unfortunately, he's one of the most deformed of the Splicers and is well aware of it. Thus he divides his time between planning to change that and grousing about the state of Rapture's women.
* BumblingDad: He seems to have evolved into this in the sequel, mentioning that he made his baby's crib out of an old fish tank so they can keep an eye on her.
* CasanovaWannabe: He's self-aware about how futile his hopes are, but he still muses about his dreams of scoring.
* DomesticAbuse: A few lines showcase this. Probably one of the main reasons he can't get a girlfriend-and got kicked out of the whorehouse.
* TheGrovel: If it wasn't obvious that he'd be the type to do this, he will try a standard "Please, baby, take me back!" on a Big Sister.
* HopelessSuitor: "But I sent her flowers ''every day''... and she ''always'' sent them back..."
* ICouldaBeenAContender: "Things were supposed to work out for me down here! RYAN! ''Where's my turn, you son of a bitch?!?''"
* IfICantHaveYou: He might say this word for word to a Big Sister while attacking her. It'll work about as well as you'd expect.
* LookingForLoveInAllTheWrongPlaces
-->"'Maybe there’s an odd number of folks down here,' she says, 'and you're just the odd man out.' Fuck you!"
* PoliticallyIncorrectVillain: He's a misogynistic, entitled asshole, who makes it clear that he has huge problems with women who don't want to just fawn on him.
* SourGrapes: He makes a lot of misogynistic comments due to his poor luck with women.

->'''Voiced by:''' Marcelo Tubert

-->''"His light shineth even down here, in the murk..."''

The collapse of Rapture has driven Waders back to religion. He constantly mutters Bible quotes to himself in a thick Spanish accent, clinging to the last thing he thinks can save him. As such, he considers anyone who threatens him to be a heretic and attacks them as harshly as possible.
* AsTheGoodBookSays: Waders' lines are mostly a mishmash of Bible quotes and religious rantings.
* GratuitousSpanish: He calls the player "el stupido" in one of his lines.
* IronicNurseryTune: Forlornly sings ''Jesus Loves Me'' to himself.
* LightIsNotGood: He's ''obsessed'' with light and darkness.
* MadnessMantra: "I observe... all his commandments... I observe all his commandments... I OBSERVE ALL HIS COMMANDMENTS... ''I OBSERVE ALL HIS COMMANDMENTS!''"
* YouCanRunButYouCantHide: "''I'' can't see you... but ''[[{{God}} He]]'' can!"

->'''Voiced by:''' Prudence Wright Holmes

-->''"The pressure! They can't understand the pressure!"''

The overworked Heady takes her job at Rapture Central Computing very seriously, to the exclusion of everything else. Rapture's collapse has done little to calm her nerves.
* BeleagueredBureaucrat: Appears to be this based on her comments.
* {{Workaholic}}: Is only concerned with her job, and performing it right.

->'''Voiced by:''' Owen Thomas

-->''"It's a delicate thing, a computer program. Delicate like a... a human life. So easy to break."''

One of the technicians who worked on the Thinker, Buttons is addicted to numbers and finding solutions to his various equations.
* BadassMustache: He has a pencil lip mustache though calling him "badass" maybe not be quite right.
* BodyHorror: Downplayed as they seemed to have used less plasmids than others but still enough to be driven mad among other reasons.
* MadScientist: Literally.
* NeverMyFault: "But... Mr. Porter... You have to believe me... I wasn't responsible. It's all part of the prime sequence!" and "My calculations are accurate! I checked them! I'm not a liar... The '''numbers''' are the liars!"

[[folder:Protectors and Gatherers]]
Gatherers (better known by the nickname "Little Sisters") were little girls implanted with ADAM slugs, trained to seek out ADAM and extract it from the spliced corpses of Rapture. Unfortunately the breakout of the civil war raised the issue of creating means to protect the Little Sisters. Thus the Protector program was created, which sought to create powerful mutated bodyguards capable of protecting the Gatherers from multiple Splicers. The Protectors eventually became known as "Big Daddies". Though several kinds exist, the Big Daddies are always a formidable foe, though they won't attack the player unless provoked. Unfortunately, the player needs the ADAM the Little Sisters carry to survive...

[[WMG:Overall Tropes]]
* AndroclesLion[=/=]ThePowerOfLove: [[spoiler:The reason they're able to bond in the first place? Elizabeth was able to convince a pair of Little Sisters to save a Big Daddy by giving it some ADAM. This one act of kindness caused the first successful bonding.]]
* AffectionateNickname: Little Sisters tend to call their Big Daddies "Mr. Bubbles" or "Mr. B".
* BadassAndChildDuo: With the Little Sisters.
* BodyHorror: Audio Diaries mention that the process of making Big Daddies include ''stripping the man inside of his skin'' amongst other things, so that he can never survive without the suit. It is also said that the skin is fused to the suit with hot steam.
* ColourCodedForYourConvenience: When friendly, the lights on a Protector's visor are green; if indifferent, the lights are yellow; finally, if it's about to attack, the lights are red.
* ClingyCostume: To varying degrees: Alpha Series Big Daddies can remove their helmets, but that's about it; most run-of-the-mill Big Daddies are little more than organs and tissues ''welded'' to the inside of their suits; the Big Sisters are the only Protectors who can remove their suits, and most of them are too busy to do so.
* EliteMooks: This is especially true of the Alpha Series in ''Bioshock 2'', since they can show up without Little Sisters and are hostile from the start.
* GentleGiant: They are completely passive unless the Little Sister they are guarding is approached.
* HugeGuyTinyGirl: The Big Daddies and the Little Sisters.
* ImplacableMan: The Big Daddies are extremely tough, and once enraged, will not stop until either they or their attackers are dead.
* LetsYouAndHimFight: Thanks to the way Big Daddies are programmed to respond to threats, simply using one as a human shield turns it into a temporary ally that will kill whatever attacked it. This includes other Daddies and Big Sisters.
* OneWayVisor: The Big Daddies' helmets.
* PapaWolf: All of the Big Daddies have been programmed to fly into a rage if a Little Sister is harmed in their presence. The Alpha Series was programmed with a much more specific version of this.
* TheUnintelligible: They make contented rumbling drones around their Little Sisters, and hideously terrifying roars when called to protect her or attacked. That's... about as close to language as they ever get.
* TwentyFourHourArmor: Their skin and organs are fused into their suits.
* UnstoppableRage: If you piss off a Big Daddy, he absolutely will not stop coming at you, ever, until you are dead. Or you kill him.
* WalkDontSwim: Most Big Daddies are far too heavy to swim, but as they don't need to breathe and they're immune to the crushing pressure on the ocean floor, Big Daddies are perfectly capable of marching across the sea bed.
* WasOnceAMan: They were once humans, mostly criminals, plasmid test subjects, or just regular humans in the wrong place at the wrong time, forcibly converted to act as Protectors.
* YouAreFat: A common taunt from Splicers is to call them "fatty" and demand they take off the diving suit.

[[WMG:Alpha Series]]
The first line of Big Daddies, which originally included Subjects Delta and Sigma. These prototypes were equipped with a variety of weapons as well as Plasmid powers. Being the first iteration of the Big Daddies, each was originally bonded to a single Little Sister. Unfortunately, due to this bond, if the Little Sister died, the Alpha Series would become depressive, suicidal husks at best and AxCrazy at worst. This, coupled with the sheer expense necessary for their creation, caused the whole line to be scrapped and the remaining Alpha Series to be re-purposed as foot soldiers seeing as they couldn't be used for anything else.
* AxCrazy: Apart from Delta and Sigma, the only Alpha Series encountered in the game are maddened killing machines, apparently having been driven insane by the death of the Little Sister they were bonded to.
* CantLiveWithoutYou: Up until Delta, most Big Daddies lost interest in their charges the moment they were no longer in any danger; Gilbert Alexander countered this by creating an intense emotional bond between each Alpha Series and the Little Sister that was assigned to them. This was enforced by a physiological countermeasure that sent the Alpha Series into a coma if their Little Sister moved out of range.
* GlassCannon: They're weaker than the average Big Daddy (this is especially true after you've researched them enough), but make up for it by packing better weapons and using plasmids. They're still pretty tough by human standards, though.
* GoneHorriblyRight: The Pairbond; it worked exactly as planned -- it's just that Alexander wasn't able to predict what would happen if the Splicers actually succeeded in killing a bonded Little Sister. The result sent the entire Alpha Series to the scrapheap.
* HeroicBSOD: Upon the deaths of their Little Sister, the few Big Daddies who didn't immediately lapse into a coma or die suffered horrific mental breakdowns; Gilbert Alexander recalls seeing one kneeling in front of a Gatherer's Garden, [[InelegantBlubbering in tears.]]
* ItCanThink: Unlike later "models", the Alpha series retained enough intelligence to use tactics and adapt to their opponent's behavior, making them very dangerous.
* FlawedPrototype: Costly, overpowered, and only capable of bonding with one Little Sister (with catastrophic results if she dies) they were retired ''with good reason''.
* NoSell: On your way out of the plasmid laboratory, there's an Alpha that is immune to being stunned by Electro. Fortunately, it isn't that hard to defeat if you've been keeping up on your research.
* PsychoPrototype: The result of these flaws.
* SuperPrototype: The original line of Big Daddies and superior in many respects to the ones that came after. They move faster, can use multiple weapons, and are the only model able to use plasmids. Doctor Suchong even mentions that they are superior to the newer models, and had to be retired partly because they were so overpowered.
* UnstoppableRage: Those who don't go into a coma, die, or become depressed go in this instead, going permanently and hyper-aggressively insane as well as adopting [[TheBerserker tactics that easily reflect]] their [[AxCrazy mindset.]]

Arguably the most iconic face in the ''[=BioShock=]'' franchise. The Bouncer's main weapon is its signature drill which they use coupled with their surprising speed to deadly effect. They can also slam their drills into the ground to stun foes, which they usually follow up with the aforementioned drill charge.
* CloseRangeCombatant: They have no ranged attacks, relying solely on their drill and speed to deal damage.
* TheDreaded: Anybody in Rapture that retains any concept of self-preservation is terrified of these things.
* EstablishingCharacterMoment: The second time the player sees one. Right as Splicer attacks a Little Sister, the Bouncer she was paired with charges in with a bone-chilling roar, smashes the Splicer against a glass wall hard enough that it breaks, [[ThereIsNoKillLikeOverkill uses his drill to punch a hole in him, and then picks him up by the head and slams him into the floor over and over until his skull has been reduced to paste]]. Then it goes back to its usual docile self and follows his Little Sister meekly out of the room.
* GrapplingHookPistol: ''VideoGame/BioshockInfinite: Burial at Sea'' shows that they can fire their drill like a grappling hook to move between sections of the city. Notes in Suchong's lab indicate that problems with the gas mechanism and tensile strength of the wire forced them to phase it out, hence why the Bouncers in other games can't do it.
* GuestFighter: Made a playable character on ''VideoGame/PlayStationAllStarsBattleRoyale''.
* LeeroyJenkins: His main tactic is charging straight at you extremely quickly with little regard for any dangers in his path. One of the easiest (though somewhat expensive) ways to kill one is to simply create a row of trap bolts or proximity mines for him to charge through. If you place enough, the [[CurbStompBattle "fight"]] will only last a few seconds.
* LightningBruiser: Once enraged, the Bouncer can move ''fast''.
* MascotMook: The most well-known of the Big Daddies, and the face of the first game.
* SuperStrength: One scene killing a random Splicer easily picks him up and slams him around like he's made of paper.
* ThisIsADrill: Their primary weapon.
* UnskilledButStrong: The Bouncer doesn't show much in the way of tactics or self-preservation. Once provoked, it will usually charge at its enemies with all its might. A savvy player can exploit this by planting some Proximity Mines between himself/herself and the Bouncer.
* YouWillNotEvadeMe: The GrapplingHookPistol noted above can also be used to grab you. The Daddy often does this instead of its charge attack when it stuns you.

A heavily armored long-to-medium-range Big Daddy. The Rosie's main method of attack is via their rivet gun, which either fires highly damaging rivets or proximity mines.
* CyberCyclops: Invoked by the one-windowed helmet.
* DemotedToExtra: In the second game, they're only fought in Pauper's Drop, and never again, with the Rumbler seemingly replacing them.
* LongRangeFighter: Compared to the Bouncers, the Rosies prefer to stay at range, pelting you with rivets and proximity mines.
* PunnyName: A Big Daddy who carries a rivet gun called "Rosie". As in [[ Rosie the Riveter]].
* MightyGlacier: The slowest Big Daddy model, but also the toughest and the Rivet Gun does a lot of damage.

Introduced in ''[=BioShock=] 2'', the Rumbler was developed to deal with the drastic increase in Splicer strength since the original game. To this end, it has been equipped with a rocket launcher and the ability to deploy mini-turrets to engage multiple foes.

* {{BFG}}: His ''huge'' shoulder mounted rocket launcher.
* GlassCannon: By Big Daddy standards, anyway. He has noticeably less health than the Rosie and Bouncer, but his rocket launcher and turrets are damaging enough to allow him to take on even Big Sisters unaided and survive.
* HoistByHisOwnPetard: He's got some of the deadliest weapons in the game, but all of them can be turned on him. His turrets can be hacked to attack him instead (though this can be a bit difficult to do on the fly) or simply tossed back with telekinesis, and his rockets can be thrown back with telekinesis. If you keep your distance and have enough EVE, you can easily beat this model without ever taking a hit.
* LongRangeFighter: Like the Rosie, they prefer to use their rocket launchers and Mini-Turrets for combat.
* TheTurretMaster: Can deploy Mini Turrets to assist himself.

Introduced in Minerva's Den, the Lancer is the most technologically advanced Big Daddy. The Lancer is equipped with an Ion Laser and can also perform an Ion Flash, a burst of white light that can blind enemies.

* BlindedByTheLight: His Ion Flash, though you just have to look away for a bit to avoid it.
* BlingOfWar: He has the most ArtDeco [[ inspired armor]] out of all the Big Daddies (the Lancer designs started as some [[ concept art]] representing what the Little Sisters saw the Rosie Big Daddies as, which ended up relegated to a single statue in Persephone).
* FrickinLaserBeams: Carries the Ion Laser, and basically cannot miss if he's got a bead on you.
* KnightInShiningArmor: the creator's vision for the Lancer was to have him resemble a knight (hence [[MeaningfulName the name "Lancer"]]). He even has a slightly tattered cape.
* LightningBruiser: He's as fast as the player and loves to keep pace while raining down damage with the Ion Laser.

[[WMG:Little Sister]]
After the discovery of ADAM by Brigid Tenenbaum, she sought to discover a way to mass produce it. She eventually discovered that implanting the ADAM producing slugs in the stomach of female children (oddly the only ones receptive to the process) could achieve much higher yields. Eventually Dr. Suchong proposed using the girls to recycle ADAM from dead Splicers and ensuring their compliance via mental conditioning. The result were the Gatherers, nicknamed "Little Sisters".
* AmbiguousInnocence: But they would be completely innocent in other circumstances.
* BabiesEverAfter: ''[=BioShock=]'' 1 ended with [[spoiler:the Little Sisters all growing up, getting married, and having children of their own]].
* CloudCuckooLander: Due to their mental conditioning, they see the dank hell of Rapture as a beautiful paradise. They also tend to say random things when idle.
* CreepyChild: In terms of appearance they're less creepy in the sequel (done intentionally, according to WordOfGod to make them easier for players to grow attached to), but you [[spoiler: finally get a glimpse of what Rapture looks like through their eyes]], which more than makes up for it.
** The Little Sisters in the original are creepier when they're first introduced, singing {{Ironic Nursery Tune}}s and muttering about how they "know [you]'ll be an angel soon". Once you start encountering them in the game proper, with their quirky random lines and cute voices, they become a lot more tolerable and even fun to encounter. They can be ''adorable'' when they want to be...
* CreepyShadowedUndereyes
* EeriePaleSkinnedBrunette: Some of the sisters in the first game and all of the sisters in the second.
* GettingSmiliesPaintedOnYourSoul: Have an artificially-created sense of peace through their mental conditioning.
* GlowingEyes: Of varying colours in the first game, and all solid yellow in the second.
** GlowingEyesOfDoom
* HappilyAdopted: In the original's good ending, all seven of the Little Sisters [[spoiler:go to live with Jack, and are still with him at his deathbed]].
* HealingFactor: The implanted slug allows them to heal from injury fast enough as to make no difference. Removing the slug renders them as fragile as they once were.
* HorrorHunger: They have a profound hunger for ADAM, which can only be found in corpses. They are tasked with syringes to drain ADAM out of dead splicers, then drink the extract from a handy nipple. Yuck.
* ImmortalityHurts: For all their NighInvulnerability, it's brought up in ''2'' that Little Sisters do in fact still feel pain. An audio diary can be found discussing a Little Sister who had attempted to either escape imprisonment or kill herself by throwing herself from a ledge. The attempt failed, instead shattering her legs, and several surgeons had to repeatedly break her bones to set them properly as they kept fusing back together. As mentioned in the diary, this Little Sister was awake, and very much in pain for the entire duration.
* InappropriateHunger: If you enflame a splicer with Incinerate! or phosphorus buckshot, she'll ask for some marshmallows.
* InelegantBlubbering: Little Sisters are absolutely heartbroken when you off their Big Daddy.
* InfantImmortality: {{Justified|Trope}}: The slugs inside the Little Sisters give them a NighInvulnerable HealingFactor, unless someone can grab them and physically remove the ADAM slug from their bodies. That's what the Big Daddies are meant to prevent.
* IronicNurseryTune: "The House Of Upside-Down" among others.
* MyDadCanBeatUpYourDad: The jingle for the Gatherer's Gardens, as well as what the sisters say when you pick them up in ''[=BioShock=] 2'' (unless you have been harvesting them).
* NighInvulnerability: Cannot be permanently harmed, unless they are harvested.
* NightmareFuelColoringBook: Have some rather disturbing stick figure drawings of their Big Daddies and 'angels'.
* NightmareFuelStationAttendant
* ProgressivelyPrettier: They look a lot cuter in ''[=BioShock=] 2''. Justified because Delta's Protector conditioning would naturally make them look more appealing to him.
* UnusualEuphemism: When you or a splicer is being fought by their Big Daddy. "Unzip him, Mr. B!"
* VoiceOfTheLegion: They produce a somewhat ghostly, reverberating echo whenever they speak.

[[WMG:Big Sister]]
A teenage Little Sister turned into a ruthless killing machine, after puberty caused her original mental programming to break down. The maturation of their bodies have caused them to gain incredible agility and develop powers far beyond any normal Plasmid user.
* [[FaceDoodling Armour Doodling]]: Some of them sport crayon drawings on their armor, apparently from the Little Sisters they've been escorting.
* BishonenLine: By far the most human (being able to actually remove their armor), and the most powerful of all the Protectors.
* BrainwashedAndCrazy: Played with--as Little Sisters, they were under the influence of mental programming for much of their childhood, even leading into adolescence; however, following adolescence, the programming broke down, leaving them aggressive and dangerously unstable. So, Gilbert Alexander put them through another round of specialized brainwashing to channel their violent instincts in a productive direction.
** AxCrazy: But even under the brainwashing to channel their instincts into a satisfactory place they still attack relentlessly while screaming and laughing. They even sound ''the most fucked up'' out of the enemies you face, little more than completely incoherent, animalistic psychotics.
* CyberCyclops: Similar to the Rosies in this respect.
* DarkActionGirl
* EvilLaugh: Let out a somewhat muffled chuckle from time to time while battling their opponents
* FromNobodyToNightmare: The Big Sisters represent this more than any other Protector in the game; prior to their rise to physical maturity, they were all near-harmless Little Sisters.
* HopelessBossFight: The first one you fight has a ridiculous amount of health. Once it's critically wounded you, it retreats.
* LightningBruiser: In a matter of seconds they are bearing down on you, and they can even dodge plasmid attacks at close range.
* LiquidAssets: If injured and left alone, they can telekinetically grab a Splicer to drain, which heals them.
* MakeMeWannaShout: The Big Sisters announce themselves with a piercing shriek that actually distorts Delta's vision, but thankfully it doesn't actually hurt him.
* MindOverMatter: The Big Sisters can telekinetically grab multiple nearby objects and throw them at enemies.
* MiniBoss: A Big Sister shows up once you've finished rescuing/harvesting with all the Little Sisters in a level.
* PlayingWithFire: They have the ability to throw fire at you.
* TurnsRed: Once damaged enough, their air tanks start leaking what is presumably ADAM (given they drop it when killed).
* TragicMonster: Imagine if it was possible to save these girls. Wouldn't you do it?