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The protagonist of BioShock 2 and the Player Character, a Super Prototype Big Daddy and the first to be successfully bonded to a Little Sister, who happened to be Eleanor Lamb. Unfortunately for Delta, Eleanor's mother Sofia managed to recover her and used an Hypnotize plasmid to force him to shoot himself in the head. Delta was revived years later by Doctor Tenenmbaum to stop Sofia who has taken over Rapture and aims to do something terrible to Eleanor.
- And I Must Scream: The rest of the Big Daddies are in many ways luckier than Delta, because they've been brainwashed to the point that they are no longer self-aware or possessing human-level intelligence. Delta's self-awareness has been restored... meaning that he is now fully aware of the Body Horror he has experienced, and the monster he has become. Even the Big Bad Dr. Lamb is horrified at Delta's situation and expresses genuine pity: "I had thought you some golem of Sinclair, brought here to hold Rapture's arms as he rifles through her pockets. But no... you are aware of your plight. Who, I wonder, would be so cruel? To force a mirror... on a man with no face?" Also, in a literal sense, he cannot physically speak anymore because of his voicebox modification.
- Body Horror: As with other Big Daddies, we never see exactly how Subject Delta has been spliced and mutated, but it apparently isn't pleasant, that's for sure.
- Can't Live Without You: As an Alpha Series Big Daddy, Delta will either lapse into a coma or die unless he is reunited with Eleanor soon. When you finally see her again, Lamb smothers her daughter to trigger this, sending Delta into a coma.
- The Corrupter: Potentially. Harvesting Little Sisters and killing the relevant NPCs will condition Eleanor to believe such behaviour is perfectly natural, and that her own survival justifies anything. She will extract your ADAM to make you a part of her (forcibly if you did not save at least one Little Sister) and vow the world will never see the destruction she will unleash coming.
- Elemental Powers: Through the use of Plasmids, he can gain these.
- The Faceless: Literally, since whatever face he has is permanently hidden behind a one-way visor.
- Firing One-Handed: Justified by both his enhanced strength and because he wields his Plasmids with his off hand.
- Friend to All Children: If Delta rescues all of The Little Sisters.
- Heroic Mime: Justified, since Big Daddies can't speak. He is not voiceless, however, as he will grunt in pain or when jumping.
- It Can Think: When he is broken free of his brainwashing, he regains his higher faculties.
- Living Emotional Crutch: Just as only Eleanor can keep you alive, so is your coming for her the only thing that allows her to maintain hope of a better tomorrow.
- Made of Iron: Subject Delta endures a lot, even by the standards of most Alpha Series. In the cutscenes alone, he's hit by a wall of high-pressure water when a Big Sister shatters a bay window; he's trapped in a room and pelted with gunfire and molotov cocktails until the floorboards under him break, sending him on a three-story fall; the train car he's riding gets torpedoed by Father Wales; Sofia Lamb floods Siren Alley, nearly crushing him to death when a metal door's slammed into him by the resulting water pressure; his link to Eleanor is disrupted when Sofia half-suffocates her with a pillow, leaving him on the brink of death; a corridor of demolition charges explode in his face, and he has to ride to the surface while hanging onto the side of Sinclair's escape pod, being battered and crushed by intense pressure on the way.
- Magic Knight: Optional. You can use just your drill and plasmids in this game, and there's a tonic which (optionally) forces you to use basically nothing else. With the right tonics and plasmids, this can be incredibly effective.
- Morality Chain: Potentially. If you save the Little Sisters (and optionally, spare the NPCs), Eleanor will develop a more conventional sense of morality, which may drive her even to forgive her mother and leave her the opportunity to move on. Eleanor even lampshades this by calling Delta her conscience, and extracts his ADAM so he can be with her forever.
- Only Known by Their Nickname: As Subject Delta and Johnny Topside.
- Papa Wolf: He's a Big Daddy. It's literally part of the job description. Even more so on account of the fact that he is bonded to Eleanor alone, and will tear through an entire city's worth of Splicers, Big Daddies and Big Sisters to get her back.
- Pay Evil unto Evil: If he chooses to kill Grace Holloway, Stanley Poole, and Gilbert Alexander, although considering Grace and Gilbert "evil" is a matter of opinion.
- The Paragon Always Rebels: If you choose to go down the evil path, then so would Eleanor herself.
- Psychic Link: With Eleanor.
- Psychic Powers: Again, some of the plasmids.
- Roaring Rampage of Rescue: It's entirely feasible to do a playthrough where you murder every living thing between you and Eleanor, including those who don't really deserve it and/or have no way of defending themselves.
- Silent Protagonist: As a result of becoming a Big Daddy, Delta's vocal communication is limited to grunts of pain. Stanley even lampshades this, joking that Delta is his "silent partner."
- Spirit Advisor: In most of the endings, Eleanor injects herself with Delta's ADAM, allowing him to live on inside her mind.
- Summon Magic: The Summon Eleanor plasmid, which briefly brings Eleanor to Delta's current location and allows her to fight alongside him.
- Super Prototype: He's more mobile than a normal Big Daddy and can use plasmids, at the cost of not being quite as tough. Dr. Suchong also mentions that he's superior to what is to come, but they had to Nerf the following versions to the point of "mediocrity", mostly because they would be too dangerously overpowered. Not to mention too expensive. Some of Gil Alexander's diaries also note that the "one Sister, one Daddy" linking system built into Delta ultimately caused more problems than it solved. Given the game's plot this was no doubt very true.
- This Is a Drill: Like most Big Daddies, a drill is standard issue. It's Delta's version of Jack's wrench.
- Tomato in the Mirror: Not including the "Was Once a Man" bit below (which isn't surprising since all Big Daddies were made from people), Sofia Lamb actually brings this up in conversation, talking about how cruel it is to force awareness onto something that was human but is no longer.
- Was Once a Man: Apparently, he was known as Johnny Topside, a deep-sea explorer who found Rapture whilst exploring the sea-bed. At least that's what Stanley says.
- Would Hit a Girl: Delta has to defeat a number of Big Sisters during the game. Although they look and sound monstrous, they are still human women who have been mutated.
- Would Hurt a Child: If Delta harvests The Little Sisters. Also averted as, with the first game, it is impossible for Delta to physically harm any of the Little Sisters accompanying their Big Daddies.
Dr. Sofia Lamb
Voiced by: Fenella WoolgarThe Big Bad of BioShock 2. An idealist as obsessive as Ryan, but with a philosophy that's diametrically opposite. She believes in absolute collectivism, denouncing individuality and even sentience as a curse. She plans to use her daughter Eleanor to set the foundations for Utopia, whatever it takes.
"Until ADAM, the human animal was a slave to the gene... the inner Tyrant. Lust... greed... rage; self obsession was etched into our DNA. We were not pulling the 'Great Chain of progress,' as Ryan believed - but shackled to it. But now, in theory, we can redraft the human blueprint. Serving the common interest can become as natural as breathing."
- Abusive Parent: From the opening cutscene, it's plainly obvious that Sofia cares nothing for Eleanor, only for how she can be used to further her own plans. Of particular note is the way she says "[Eleanor] is mine," the emphasis treating Eleanor more like an object than a person. Case in point, one audio log has her explain how Eleanor isn't her child but a project of hers, she even left her daughter with a patient of hers to build on her utopia and when she found out that her child became a Little Sister, she is more annoyed than sad.
- Oddly, however, a later audio log has Eleanor emotionally expressing regret at the possibility of having to kill Eleanor.
- All-Loving Hero: She's anything but, yet still manages to be a unique deconstruction of the idea. She loves everyone without bias. Or, in other words, no one person is important to her in any way, and everyone is a potential sacrifice for the sake of her Utopia. Even saying she cared for Subject Delta as much as anyone else in her flock and compared his sacrifice to saving many other children by sacrificing one rebellious son. What is one person to the whole?
- Big Bad: Of BioShock 2.
- Berserk Button: She couldn't stand Eleanor rejecting her ideology and went to increasingly erratic and extreme lengths to stop Subject Delta. Finally she smothers Eleanor in a last ditch attempt to stop Delta; she had no way of knowing this wouldn't kill Eleanor as well, but it's quite clear she didn't care.
- Bitch in Sheep's Clothing: Despite her calm demeanor and utopian views, she is clearly a cold-hearted sociopath at heart, ruling Rapture with an iron fist.
- Blue and Orange Morality: She has a really warped take on utilitarianism. She's all about "altruism" and "the common good", but this manifests as a disregard for human life that borders on misanthropy.
- Break the Haughty: Suffers from this in the semi-good ending of the game, especially when Eleanor makes it clear that she only saved Sofia's life to make sure that she'd go on living in the knowledge that her Utopia had failed and her daughter had betrayed her.
- Catch-Phrase: Usually starts her little speeches with the phrase "Ask yourself".
- Con Artist: In the Novel, Fontaine expresses his admiration to her ability to con a large group of people at once.
- Dark Messiah: Dark as they come.
- Dirty Communists: While never identified as one per se, Ryan remarks the very presence of her collectivist ideas will cause another Kremlin to spring up in Rapture. He was right... except if he hadn't betrayed his principles and thrown her in prison with the rest of his enemies just as she planned, she'd never have been able to build her army. Just like how his anti-smuggling laws created Fontaine.
- Evil Brit: She's voiced by Fenella Woolgar.
- Evil Cannot Comprehend Good: She's quick to scoff at Delta should he choose to spare Grace Holloway, decrying the action as a 'feeble ruse' meant to gain her trust. The idea that a human could have genuine selflessness in their nature seems so absurd to her that it's not even worth considering.
- Evil Matriarch: Is she ever! It's clear from the opening cutscene that she possesses no love for Eleanor as a human being, only as a tool.
- The Evils of Free Will: She believes that individuality is the root of all evil.
- Faux Affably Evil: Never raises her voice and is unfailingly polite, though at times condescending. This while she sends her army of splicers to murder you.
- Four Eyes, Zero Soul: She evokes a pretty dark version of Stoic Spectacles; her horn-rimmed specs emphasize her sociopathy.
- Freudian Excuse: In the form of her strict upbringing as a psychiatrist following in her father's footsteps, and in the form of her volunteer work in post-bomb Hiroshima.
- Foil: Her collectivist outlook makes her one to Andrew Ryan. Of course, see Not So Different below. To some extent to Subject Delta as well. She acts out of a perverse desire to force collectivism on others and sees free will as an obstacle to utopia. Delta, in the good ending, saves the little sisters, kills no more than necessary, and serves the collective good because he chooses to do so, acting only out of love for Eleanor.
- Good Smoking, Evil Smoking: Chain-smokes cigarettes—apparently as a result of stress, as the only time she's seen doing so is when Delta is standing right outside her door.
- Hot Librarian: She evokes certain aspects of this.
- Humans Are Bastards: As much as she claims to love everybody without bias, there's really no denying that her opinion of human nature overall is about as low as it gets, to the point that greed is etched into humanity's very genes (though scientifically speaking she's not exactly wrong) and the idea that someone, anyone could possess inherent selflessness is absurd to her.
- Hypocrite: She preaches collectivism, but she is practically as possessive as Ryan himself. This was true even before she came to power, as she leaves the surface because she believes others have corrupted HER collectivist ideas. She also continually berates Delta for stealing her child away, yet has been kidnapping children from the surface to make them into Little Sisters. Were she less busy trying to murder Subject Delta, she might realize that he perfectly resembles her idea of the "utopian" - working tirelessly, regardless of free will, and willing to die for the sake of another.
- I Have No Daughter: Right before smothering Eleanor, she bemoans that Eleanor has been learning from Delta's actions instead of her own, rendering her little better than him in Sofia's eyes.
- Karmic Death: If Delta doesn't harvest any Little Sisters, yet kills Grace, Stanley, and Gil, Eleanor forcibly drowns Sofia, proving that she could never be welcome in a true family.
- Lack of Empathy: Gil Alexander explains that Sofia does have empathy, but for everyone equally. The net result is that she doesn't give a single damn for any one individual, only caring about how they can benefit her cause for humanity as a whole.
- Lean and Mean: She's pencil-thin and exceedingly cruel.
- Light Is Not Good: Blonde, pretends to be nice, symbolic name, leads an evil cult, and will screw the world over to make it "better". Yee-up!
- Mama Bear: An odd non-emotional example. She sees Eleanor as her property, and will do anything to protect her so long as she serves as the key to Lamb's utopia. The instant Eleanor breaks free of her control, Lamb aims to kill her without a moment's hesitation.
- Manipulative Bitch: She engineered her own jail conviction to gain popular support as a martyr and place herself in a facility far from Rapture where she could turn the inmates into an army. Even Fontaine is impressed.
- Morally Ambiguous Doctorate: She's a psychologist brought to Rapture by Ryan to shut the mentally fragile up.
- Moral Sociopathy: A curious case in that she probably did not begin as this, but by the time of BioShock 2 she has definitely become a sociopath obsessed with her philosophy.
- Nothing Personal: She goes as far as to say she loves Subject Delta just as much as anyone else, before sending a pack of splicers to kill him. As noted above, she "loves" everyone, but to such an insignificant degree that their lives mean nothing to her.
- Not So Different: Despite being Ryan's Foil, they are incredibly similar. They are both hypocrites willing to bend their philosophies to their own ends. They also both treat Rapture as a means to an end, more concerned with their imagined utopias than the actual city or inhabitants under their control. And as other trope entries on this page show, the similarities do not stop there.
- Psychic-Assisted Suicide: Attempts to do this with Subject Delta at the beginning of the game by using a mind control plasmid. Fortunately, he gets better.
- Psycho Psychologist: She originally worked as a psychotherapist but used her therapy sessions to recruit followers to her collectivist cult.
- Shadow Archetype: Her very existence in Rapture scares the pants off of Ryan, because she represents everything he built Rapture to escape from. He has to be talked down from sending her straight to jail when he figures out who she really is.
- Straight Edge Evil: Much like Ryan before her, she doesn't indulge in Plasmids and Gene Tonics, to the the point that the above-mentioned mind control was administered by one of Lamb's splicers.
- The Sociopath: She doesn't even give a damn about her own daughter, seeing the girl as just another tool.
- Tautological Templar: Sofia Lamb just wants to push mankind into its next evolutionary stage. It's for the Greater Good, and nothing could be more evil than trying to stop this noble goal. Ask yourself: are Rapture, human consciousness, individuality itself, and Eleanor's mind really such high prices to pay for paradise?
- Totalitarian Utilitarian: She does everything for the good of mankind. Or at least thinks so.
- Truly Single Parent: She tries to invoke this with Eleanor in a removed audio diary, telling her to think of the whole world as her family. It doesn't really stick.
- Un-person: The reason you never heard of her in the first game - Andrew Ryan, not wanting any possibility of her regaining control, had all records of her existence disposed of.Andrew Ryan: Bury her memory, Sinclair. Bury it, and salt the earth.
- Villainous Cheekbones: Played perfectly straight. Notably, Eleanor lacks them.
- Villain Has a Point:
- Depending on how you play. Murdering the three karmic individuals on your journey through Rapture does justify her calling you a tyrannical monster. Alternatively, if you choose to save the little sisters and turn the other cheek to Grace, Stanley, and Gil, you defy her point about The Evils of Free Will by showing that choosing to do good will have a better effect on the world than forcing collectivism upon it.
- She may be a domineering sociopath, but her criticisms of Ryan and Rapture's failings were right on the mark. Problem is, her approach isn't any better.
- Villainous Breakdown: At least in the first few hours of the game, Sofia has Rapture dancing around on her hands and is in complete control of the situation. She starts to lose it once Delta leaves Pauper's Drop as she literally kills the most loyal of her followers in an attempt to stop him from getting to he pumps. Once Delta enters Fontaine Futuristics, she's clearly starting to get desperate and, when the player reaches Persephone, she smothers her own daughter to near-death, just to send Delta into a coma so he'll die gradually from the pairbond mechanism, and it's clear she didn't care at all about the possibility of Eleanor dying in the process. By the last level, all that's left of Sofia's previous bravado about Eleanor being their "salvation" and "a true Utopian" is a quivering, enraged woman that takes no less than two seconds to send her troops to kill both Delta and Eleanor. This all ties back to the start of the game, with Sofia's line of "Eleanor is mine", emphasizing her as an object more than a person, and also drawing attention to Sofia's hypocrisy. The minute her plans fall apart, she ditches the "Family" immediately so she can save her own skin and escape to the surface on Sinclar's vessel... All the while still claiming that her views are for the common good.
- Well-Intentioned Extremist: But not in the way most would think: her actions and audio diaries quite clearly reveal she never had any intention of saving Rapture. Her real goal is to create a "Utopian," who would be able to serve the common good with no concern for their own desires, and gradually convert the rest of the world into similar beings.
Augustus Sinclair/ Subject Omega
Voiced by: Doug BoydA friendly, charming and somewhat amoral businessman who aids Subject Delta in his quest to reunite with Eleanor Lamb.
"You do business as long as I have, and you learn to pick a brand name from the writin' on the wall."
- Action Survivor: Lives through the Rapture Civil War and ten years of Lamb's rule of Rapture while remaining unspliced. Unfortunately for him, his skills failed him when he tried to rescue Delta and Eleanor.
- Affably Evil: Amiable and without scruples from the word "go."
- An Economy Is You: His principal business enterprise is a twofold scheme that virtually guarantees repeat business - his Sinclair Deluxe apartments cater to poor and miserable individuals by offering cheap rooms at low prices, and the "tenant discount" available at his Sinclair Spirits bars makes sure said tenants remain poor and miserable.
- Anti-Hero: Nominal Hero at first, mellows out to Unscrupulous Hero as he and Delta work together, and reaches Pragmatic Hero in his final moments.
- Anti-Villain: The Noble type: he was involved in a lot of the more disturbing experiments and schemes run in Rapture, including the development of the Big Daddies, but he had several lines he refused to cross and genuinely wants Delta to succeed in his mission to rescue Eleanor- especially since it will mean he gains access to technology he can sell on the surface. In a sense he's what Frank Fontaine would be like if he had some shred of morality and wasn't a sleazy conman.
- Apologetic Attacker: Gets turned into an Alpha series Big Daddy near the end of the game and forced to fight Delta, desperately apologizing to him and Eleanor along the way.
- The Atoner: He's fully aware that he's mostly responsible for what happened to Delta and Eleanor, and spends the last moments of his life trying to make up for it.
- The Barnum: His entire business model revolves around the people of Rapture being too gullible and conceited to know they're being taken for a ride. In his own words: "I was whittling wooden nickels till I made a mint."
- Big Damn Heroes: Attempts one of these to free Delta from captivity. It doesn't go well for him.
- Boss in Mook Clothing: Sinclair as an Alpha is considerably tougher than the ones you've fought so far, probably owing to his recent conversion and Lamb's meddling.
- Consummate Liar: Subverted. Despite having similarities to Frank Fontaine, never does he actually lie to Delta. In fact, he's pretty much one of the most honest folk in Rapture and a foil of sorts to everything Fontaine represented. Which doesn't save him from what Lamb has in mind.
- Corrupt Corporate Executive: He has no qualms about taking advantage of Rapture's rampant social problems and Ryan's selfishness and paranoia to make a quick buck.
- Enlightened Self-Interest: Primarily concerned with first getting his own ass out of Rapture, and second selling off what pieces of its advanced technology he can scavenge to the richest world powers. That said, he realizes that the best way to get what he wants is to help you get what you want, so he's on your side.
- Foil: To Fontaine, much as Lamb provides one to Ryan: he's essentially Fontaine with a conscience and a few morals keeping him at worst Affably Evil, at best an Anti-Hero. His southern American accent might even be a reference to this: Atlas was reportedly originally intended to speak with one, before Fontaine's alter ego was changed to Irish instead.
- Freudian Excuse: Apparently, his grandfather was a strong believer in working in the name of "The People," and "The World Entire," and drowned in the construction of the Panama Canal- thus giving Augustus Sinclair an early bias against altruism.
- Functional Addict: He's apparently indulged in ADAM-based plastic surgery, but evidently not enough to drive him to Splicerdom.
- Good Smoking, Evil Smoking: Can be seen holding a cigarette holder on the one occasion Delta meets him face to face. In defiance of convention, however, Sinclair's not truly evil, just mercenary.
- I Cannot Self-Terminate: An absolutely heartbreaking example.
- Jerk with a Heart of Gold: Sure, he's an exploitative sleazebag who wants to sell Rapture's biotechnology to the highest bidder, but he goes out of his way to help Delta and prefers him showing mercy.
- Mercy Kill: Would rather die than remain Sofia's slave, and you have to oblige.
- Redemption Equals Death: Apologizes for giving you up for Big daddy conversion after being converted himself, and only asks that you make sure Eleanor gets to see the sun after you kill him.
- Spanner in the Works: He manages to derail Lamb's plans by doing the one thing she never counted on him doing: trying to help someone other than himself.
- Southern-Fried Genius: Born in Panama and raised in Georgia, Sinclair is a shrewd businessman, and according to some, a brilliant scientist. He did help develop the Vita-Chamber, after all.
- Voice with an Internet Connection: He's Subject Delta's version of Atlas, guiding him through Rapture via shortwave radio. Unlike Atlas, Sinclair actually meets you face-to-face briefly.
Voiced by: Sarah Bolger, Sydney Unseth (as child)Sofia Lamb's daughter and Delta's former Little Sister. Constantly in sedation, as part of Lamb's master plan.
"Love is just a chemical. We give it meaning by choice."
- Acquired Poison Immunity: Apparently due to her exposure to large amounts of ADAM as a child, Eleanor can tolerate extensive splicing without any of the side-effects. Unfortunately, this makes her the perfect candidate for her mother's experiment...
- Apocalypse Maiden: This is what Sofia Lamb intends for her to be, in order to usher in a new age of perfect altrusim.
- The Atoner: In the Neutral ending, even though she feels she has become a monster, she wonders if she can find redemption like Delta has by choosing to give up his life.
- Ax-Crazy: Goes into this in the bad endings or even when working to it when she's an ally, butchering through the various splicer types with outright glee. And you influenced her into it.
- Action Girl: Even among other plasmid wielding citizens, Eleanor's talents are formidable. Her time as a little sister has also made her immune to the negative side-effects of splicing. Even more impressive once she becomes a Big Sister.
- Badass Bookworm: Extremely intelligent and knowledgeable as part of her upbringing.
- Badass in Distress: Turns out she's very capable of looking after herself. It seems her mother was less afraid of others harming her and more afraid of her daughter simply going her own way.
- Black Eyes of Evil: Not confirmed, but in some unfocused moments after absorbing Delta's conscience in the bad endings, her eyes seem to turn pitch black. It's quite unsettling.
- Blood Knight: Fairly low-key if you saved the little sisters, but if you harvested them, she actively enjoys rampaging through the splicers.
- Brainy Brunette: She was designed by Sofia to have all of Rapture's greatest minds inside of hers, eliminating her sense of self.
- Bratty Teenage Daughter: Sofia laments that Delta is turning her into this, blinded to the fact that Eleanor has always been independent and rebellious since she was a child.
- The Chessmaster: The entire game is Eleanor's escape attempt, with Subject Delta as her main piece on the board.
- Child Prodigy: Highly intelligent even in her earliest years, dismantling electronic devices and reassembling them for fun. She also had a tendency to disable her mother's security systems so she could sneak out of the house (not that this approach always worked).
- Corrupt the Cutie: As Eleanor is watching virtually everything you do, harvesting the Little Sisters and killing defenceless characters will result in her becoming just as ruthless and violent.
- Curb-Stomp Battle: When you summon Eleanor to fight with you in Persephone, she pretty much stomps all over the splicers.
- Daddy's Girl: Favors her adoptive father Subject Delta over her biological mother.
- Daddy's Little Villain: In the bad endings.
- Disappeared Dad: We hear nothing about Eleanor's biological father and the circumstances of her conception and birth. This is odd because a woman like Dr Lamb being a single parent in 1950s society is unlikely to have gone unremarked. For her part, Eleanor looks upon Subject Delta as her replacement father figure, even going so far as to calling him Father.
- From Nobody to Nightmare: From a little sister to basically an invincible, teleporting Big Sister with telekinesis. Even more of a case in the Bad ending, in which case she's a Blood Knight that derives joy from both killing things and watching them die, and has both her own genius and Delta's cunning and experience on top of all those powers.
- Evil Brit: Becomes one in the "bad" endings. Otherwise, she presents an Aversion of this trope, especially when compared to the examples provided by her mother and Dr Alexander. (It should be noted that the voice actress is actually Irish, but modulates her accent closer to British to be consistent with Sofia's voice.)
- Good Is Not Nice: She kicks plenty of ass as a Big Sister regardless of your decisions and in one ending where she saves her mother, she admits that she's not doing it out of kindness or love, but because she wants to Sofia to live with the knowledge that everything she worked for was for nothing.
- Human Sacrifice: Basically what her mother is planning.
- Kick the Son of a Bitch: Assuming Delta killed Grace, Stanley, and Gil, Eleanor forcibly drowns Sofia.
- Messianic Archetype: Gloriously torn apart and vaporized.
- Though she's implied to become a legitimate Messiah if you save the Little Sisters. Of course, she'll also become (symbolically) the Anti Christ if you harvest them. Messiahs go both ways, after all.
- Playing with Fire: She can shoot fireballs out of her hands.
- Psychic Powers: She can communicate with Delta telepathically, and makes use of the Telekinesis plasmid.
- Rebellious Princess: Her natural curiosity and intelligence didn't mesh well with Sofia's attempts to control her life, so this was the inevitable result.
- Self-Made Orphan: Depending on how Delta treats the trio of named characters, Eleanor drowns her mother Sofia.
- Significant Wardrobe Shift: She wears a simple white dress for most of her onscreen appearances, but near the end of the game, she puts on a Big Sister suit that's white in color, as opposed to the dark suits the Big Sisters you've fought throughout the game wear, to symbolize that she is not her mother's lab rat anymore. Also, unlike the other Big Sisters, she retains her normal human proportions.
- Statuesque Stunner: Upon donning the Big Sister suit, Eleanor stands eye to eye with Subject Delta. Big Sisters in general are also around 6'10".
- Teens Are Monsters: Unless you work at it.
- Teleporters and Transporters: Teleportation is another one of her powers as a Big Sister.
- Took a Level in Badass: Near the end of the game, the frail teenager you've been trying to reach for the whole game gets in a Big Sister suit, and proceeds to wreak unGodly havoc upon her mother's regime with the powers given by the ADAM injected into her.
- Voice with an Internet Connection: Or, more accurately, a telepathic connection.
Dr. Gilbert Alexander / "Alex the Great"
Voiced by: John HilnerAnother one of Fontaine Futuristics' leading scientists, Gilbert "Gil" Alexander replaced Dr. Suchong as head of the Protector Program; in this position, he created the Alpha Series and the symbiotic bond with their Little Sisters—making him indirectly responsible for Johnny Topside's conversion into Subject Delta. Following the collapse of Rapture's security police, he also designed the city's automated security system. However, he eventually fell in with Sofia Lamb and the Rapture Family, assisting in their development of a "Utopian," even submitting himself to the first attempt to create one. Unfortunately, the experiment resulted in him being horribly mutated and deranged by mass amounts of ADAM, ultimately reducing him to a nightmarish aquatic monster kept within a tank in the basement of Fontaine Futuristics.
"October 9th, 1967. Hello. My name is Gilbert Alexander, and by the time you hear this, I will be clinically insane."
- Apocalyptic Log: How his still-lucid self communicates.
- The Atoner: Dr. Alexander was genuinely ashamed that he'd been responsible for Eleanor's transformation into a Little Sister, and worked for many years to undo the conditioning he'd forced on her.
- Ax-Crazy: He has been known to "fire" Splicers under his employ, carving up "You're Fired" above and around them, and hang them on the walls when he's not sending them after Delta. He makes every other insane person in Rapture (i.e. just about everyone else) look tame by comparison.
- Bad Boss: Following his descent into insanity, "Alex the Great" has assumed total control of Fontaine Futuristics and declared himself CEO; given that there's no way of creating new products and no paying customers anyway, most of his time is spent torturing his splicer "employees."
- Berserk Button: Never, ever call him "Mister A" (or anything other than "Alex the Great"). Some poor Splicer under his "employ" found that out the hard way.
- Body Horror: We don't see his transformation take place, but given that the monster inside the tank looks like a cross between a fetus and a squid, it wasn't pretty.
- Crazy-Prepared: He might have been undergoing a horrific mutation and almost half-insane at the time, but Dr. Alexander was very careful in setting up a way for Delta to Mercy Kill him; first, he left several pre-recorded messages throughout the Fontaine Futuristics building, containing useful advice and essential passwords to restricted areas; secondly, he planted a cache of weapons and security bots to assist anyone who might come to the rescue; finally, just to make sure his rescuers would be sane enough to outwit his insane alter-ego, he programmed a bio-scan to exclude any visitors who weren't mentally up to the job.
- Deadpan Snarker: "Congratulations, you've won a battle of wits with a home appliance!"
- Evil Brit: Apparently English—or at least he speaks in a Received Pronunciation accent- but not actually a villain until massive doses of ADAM administered by Sofia Lamb drive him insane.
- Flunky Boss: Controls everything in Fontaine Futuristics and gleefully flings everything he has at you, but once you've taken out all the mooks, he's practically helpless since he can't get out of the tank to fight you.
- Gadgeteer Genius: Not only did he mastermind Rapture's security systems, but after his mutation began he also modified the branches of it around Fontaine Futuristics to provide help to anyone answering his Distress Call. After his mutation drove him insane, he also equipped numerous security drones with monitors and speakers to carry his voice and face- part of it, at least- to his "employees."
- Hopeless Suitor: One of his audio diaries indicate that he has something of a crush on Sofia Lamb- even referring to her as a "Secular Saint"- though he admits that her Love You and Everybody philosophy means that he can't be given preferential treatment.
- Kick the Dog: In one of his earliest scenes, Alex the Great has his modified security drone electrocute a terrified splicer for calling him "Mister A".
- Large Ham: In every single audio diary in the game, he's heard speaking as quietly and carefully as possible, so it's a bit of a shock to hear him start hamming it up as Alex the Great, chewing the scenery to a pulp and spitting it at Delta.
- Mad Scientist: As one of Rapture's scientific elite, this is a given.
- The Man Behind the Curtain: When Delta finally meets Dr. Alexander's horribly mutated self, he's not much of a threat without the splicers he employs; true, he may be a gigantic monster with the combined powers of hundreds of different splicers implanted into his body, but his reliance on his tank prevents him from physically attacking, and the bright light means that he can't even see Delta clearly enough to fight back in any other way.
- Meaningful Name: The man's nickname is "Gil," and he ends up as an obvious aquatic lifeform.
- Mercy Kill: His lucid self requests this from you, while his insane self begs to be spared; the decision's up to you.
- Sanity Slippage: By the time he recorded the messages, he was in the latter stages of this.
- Shock and Awe: His personal security drone can zap things with electricity. He uses it to fry "disobedient" splicers and carve messages into the walls, as well as open doors occasionally.
- Shrinking Violet: In most of the footage taken of him, Dr. Alexander comes across as nervous and painfully shy prior to Lamb's experiments: in his audio diaries, he speaks in a halting, shaky voice, sometimes barely louder than a whisper; in the "Rapture's Best and Brightest" photo, he's at the very back of the group, looking as uncomfortable and agitated as possible.
- Sinister Surveillance: Watches everything in his domain through a modified security bot that displays his maddened red eye and can electrocute anything that annoys him.
- Talkative Loon: After becoming Alex the Great, most definitely.
- Tragic Monster: He turned into a insane, literal monster.
- Understatement: Whenever he sends something at you it's said as normal workplace dialogue. This includes stuff like telling you he's 'sending an old co-worker of yours who wants to meet up with you'. It's actually the first Alpha you meet, and it's pissed.
- The Voice: Subject Delta never sees Gil Alexander's entire face at any point in the game except in old photographs. Unless you're playing the PC version of the game, and you're prepared to use noclip.
- Weakened by the Light: Dr. Alexander's new body can't stand bright light, and naturally recoils when Delta switches on the overhead lights in his chamber.
- You Have Outlived Your Usefulness: After it was found that the attempt to transform him into a Utopian had failed, Lamb abandoned Dr. Alexander.
Voiced by: Bill LobleyStanley Poole was a reporter for the Rapture Tribune newspaper. He was hired by Augustus Sinclair on the behalf of Andrew Ryan to infiltrate the Rapture Family, and gather evidence so that Sofia Lamb could be imprisoned. It all went downhill for him from there.
"Took real guts to find Rapture like he did... makes it easier not to crack if I sort of... imagine that I'm him. It's a good thing I can't tell Lamb about that though. She'd probably say I got a secret need to fall into his arms and make wild whoopee!"
- Chronic Backstabbing Disorder: Let's just say that there are very few people in the game that haven't been backstabbed by him at some point.
- Cower Power Poole spends most of his only level hiding in a booth while forcing Delta to clear up his dirty business.
- Dirty Coward: Poole's only real concern is keeping his ass out of the fire, and he's willing to go to the most repulsive lengths to ensure that nothing bad happens to him: this includes having Eleanor Lamb kidnapped and converted into a Little Sister, sabotaging Dionysus Park so that the entire population drowned, and ordering Delta to harvest any Little Sisters that might discover what he'd done. And when things start getting out of control, he quickly lapses into spineless begging.
- Evil Uncle: When Sofia Lamb was arrested, she ordered Stanley Poole and Grace Holloway to take care of Eleanor; as such, Poole ended up being called "Uncle Stanley," and proved his credentials in the evil uncle field by having Eleanor kidnapped to prevent her from ratting him out.
- Functional Addict: Flashbacks show that Poole has been splicing and in the novel he regularly indulged in lots of drugs, but he's obviously been able to keep his habit under control for now.
- The Hedonist: Upon Lamb's incarceration, Stanley assumed stewardship of Dionysus Park, and apparently made the place live up to its name by hosting wild parties every night (on her dime, of course).
- He Knows Too Much: From Poole's point of view everyone in Dionysus Park knew too much, so he found a way to Kill 'em All.
- Hero-Worshipper: One of his audio diaries reveals that he's come to admire Subject Delta- or, as he was known when he was still a human being, Johnny Topside- after interviewing him for the Tribune. Poole also went on to frame him as a spy and have him imprisoned in Persephone, where he was transformed into a Big Daddy, so he obviously didn't admire Topside that much.
- Oh, Crap!: At the end of his level, Poole suffers a doozy of an Oh, Crap! moment when Sofia Lamb remotely opens the door to his booth and informs Delta just who was really responsible for his conversion into a Big Daddy.
- Paid Harem: One of the flashbacks shows Poole during one of his parties, which he financed by using all of Lambs money, and he has two girls next to him, obviously both slightly spliced, and he appears at least as he hopes to have his way with them both.*
- Paparazzi: He was a newspaper reporter when Rapture was still a city.
- The Mole: Hired by Ryan to infiltrate Lamb's organization and sabatoge it from witin.
- Mole in Charge: When Lamb is arrested, she puts Stanley in charge of the Family along with Grace Holloway. That turned out to be a very poor decision.
- Smug Snake: He tries to come off as a badass Magnificent Bastard while you talk to him. He's anything but.
- Unreliable Narrator: Take anything he says with a small ocean's worth of salt.
- Villains Want Mercy: Cowers in a corner and begs for mercy like a coward when confronted by Delta. He doesn't even apologize for contributing to the suffering that Delta and Eleanor endured.
Voiced by: Sheryl Lee RalphA lounge singer who was blacklisted by Andrew Ryan after singing protest songs against his rule, with her lover James being taken away. She became one of Sofia's most devoted followers, and was entrusted with keeping Eleanor safe when Sofia was imprisoned by Ryan. She failed in her duty when Stanley Poole betrayed Sofia and kidnapped Eleanor. Grace eventually saw Eleanor as a Little Sister being guarded by Delta, who broke her jaw when she tried to hug Eleanor, prompting Grace to believe that Delta was the one who kidnapped Eleanor and transformed her. Sofia gave her control over Pauper's Drop after taking over Rapture.
"Ryan doesn't care and Fontaine's a damn crook, but Doctor Lamb cares. We're still people to her. She's offering free mental counseling on Sundays. When I go, I get the feeling she's got a plan for Rapture... and for me."
- Anti-Villain: The sole reason why she has a grudge towards Delta is because she believes that he was the one who kidnapped Eleanor.
- Badass Boast: "I remember you, monster. You stole Eleanor from me...twisted that baby girl into a thing so sick it can't even die... and now you come swanning into my neighborhood lookin' for me? Wrong turn, Tin Daddy. When we hang you from a streetlight, and you're choking out your last... I want you to remember my face."
- Celebrity Survivor: In-Universe example. She was a popular singer before Rapture collapsed.
- Face Death with Dignity: If Delta chooses to kill her.
- Heel Realization: If Delta spares her, she realizes that he is not a monster and provides him supplies to stop Sofia and rescue Eleanor.
- It's Personal: She isn't just following orders when it comes to hunting Delta. She was tasked with caring for Eleanor and got a broken jaw for her trouble when she tried to hug her in Delta's presence after she was kidnapped and converted. She believes Delta was the kidnapper, too.
- Law of Inverse Fertility: She's barren, and there's a barely-concealed subtext that the main reason she loves Eleanor so much is that she considered her the daughter she never got to have.
- Parental Substitute: Eleanor went to live with her after Sofia's incarceration, and it's clear that Grace's love for the little girl was far more genuine than her mother's.
- Mama Bear: To Eleanor.
- Sassy Black Woman: She certainly loves to sass at Subject Delta, regardless of the fact he cannot even speak to her.
Voiced by: Richard PoeOne of the architects that Andrew Ryan hired to design Rapture alongside his brother Daniel, he was struck hard by the depression that hit the city and blamed himself for leaks in the city that killed citizens. He found comfort in Sofia Lamb's teachings, and restyled himself as "Father Wales", spreading her message as the leader of a religious cult called the "Rapture Family" in Siren Alley.
" Andrew Ryan left us wandering confused and alone amongst yesterday's wreckage. But Sofia Lamb shows us that we are not alone, we are together, as a family."
- Anti-Villain: The poor guy was driven mad with guilt out of a belief that he caused several deaths. He's found a new purpose with the Family, but he's also out of his gourd by the time you meet him.
- Badass Beard: Before he was spliced up.
- Body Horror: His body is extremely deformed from splicing, turning him into a Crawler splicer.
- Boss in Mook Clothing: A souped-up Spider Splicer in clerical garb and a black hat.
- The Dragon: To Sofia Lamb
- Even Evil Has Loved Ones: His brother Daniel, even though he rejects Sofia's philosophy. He becomes enraged when Delta kills Daniel.
- The Fundamentalist: Very devout towards the Rapture Family.
- Hero-Worshipper: Towards Jack, whom he believes is a god, with Sofia Lamb as his prophet.
- Irish Priest: A very twisted one.
- Made of Iron: He has more health than some Big Daddy variants!
- Nice Hat: Wears a wide-brimmed black hat.
- Sinister Minister: A priest in the Rapture family.
- Wall Crawl: One of his powers as he uses hooks and his own freakish strength.
- With Great Power Comes Great Insanity: Like most Splicers, made worse with his power over his "flock".
Voiced by: Graham RowatSimon's brother and his former partner in designing Rapture, Daniel felt none of the guilt his brother did when leaks killed several people around Rapture. He refused to follow his brother into Sofia's cult, and instead established himself as the head of the Pink Pearl Brothel in Siren Ally.
"But I was the black ol' sheep back there, never believin' a word o'the Jesus bollocks meself. Then Andrew Ryan says he wants Wales an' Wales for Rapture — a Cathedral with no God, befittin' the ascent o'man. Now I'm runnin' girls... and Simon thinks he's saving souls."
- The Alcoholic: According to him, he deals with all of his problems by trying to drink them away.
- Black Sheep: In Ireland, due to being an atheist who designed churches.
- Boss in Mook Clothing: A souped-up Leadhead Splicer.
- Cowardly Boss: He flees at the first sight of Delta, requiring you to chase him down to actually fight him. When you do fight him, he still tries to run.
- Hypocrite: He won't let his prostitutes splice up, but is heavily spliced himself.
- Jerkass: Even before he fell on hard times, he was kind of an ass.
- Molotov Cocktail: One of his primary weapons.
- Nice Hat: A pretty sweet top hat.
Voiced by: Ray PorterThe protagonist of the "Something in The Sea" Alternate Reality Game who was incorporated into BioShock 2 by fan demand. Mark G. Meltzer was an ordinary middle aged American citizen who developed an interest in a series of kidnappings of children along European coastlines, which unknown to him were being perpetrated by Big Sisters. Unfortunately, during his investigation, one Big Sister managed to follow him and kidnap his own daughter Cindy. He then dedicated the rest of his life to getting Cindy back, becoming one of the few Muggles aware of the existence of Rapture and one of fewer that managed to travel there. By the time Delta is revived, Mark is shortly ahead of him, searching for Cindy.
"I can't sleep anymore. I lie awake, haunted by the watchful eyes of those poor lost girls... waiting for us to find them."
- Action Survivor: The guy survives in a world where even genetic super-beings are being killed by the dozen, armed with nothing but his pistol and willpower.
- Badass Normal: He is unspliced, while in Rapture he only carries a pistol, and when the Big Sister captures him he still manages to get some shots off despite being distracted by his daughter.
- Bittersweet Ending: He is captured by Sofia Lamb and is given the choice between death or becoming a Big Daddy and protecting Cindy. He chooses the latter. The player most likely kills him but can rescue Cindy. Or harvest her.
- Determinator: He tracks his daughter halfway across the Atlantic and then treks through Rapture implacably to find her. Nothing seems to be able to stop this guy. Except a Big Sister.
- Hero of Another Story: There could easily have been a game centered about him and the fact that he is just an ordinary guy makes him more of an Unlikely Hero then Jack or Delta, considering the fact that one genetically engineered and programed to make his way through Rapture and the other is a Big Daddy.
- Papa Wolf: Literally nothing will get between this man and his daughter. Even his own death.
- Splash of Color: His character portrait is the only one in the series that's in color as opposed to monochrome, emphasizing his nature as a Muggle and an outsider.
- Tragic Monster He's a Big Daddy by the time you meet him, choosing to be with his daughter in at least some way rather than just be killed. You have to put him down if you want to get to his Little Sister.
BioShock 2 Multiplayer
Jacob Norris/The Welder
Voiced by: Steve MellorA working-class Rapture citizen who joins the uprising against Ryan.
- Working-Class Hero: Well, "hero" is pushing it.
Barbara Johnson/The Housewife
Voiced by: Kari WahlgrenA housewife who starts using ADAM against her husband's wishes. Her daughter is abducted to become a Little Sister
Danny Wilkins/The Athlete
Voiced by: Jeff BiehlA star player of the Ryan's Raiders football team, Danny Wilkins started taking SportBoost plasmids to improve his game. As plasmids are most likely to do, this results in him going bonkers, narrating all of his murder sprees like a sports announcer describing a heated match.
Naledi Atkins/The Pilot
Voiced by: Anna GravesA fearless pilot who journeyed to Rapture as part of a grand adventure. However, when life got dull again, she turned to plasmids. Now, there isn't a dull moment in Naledi's life - even if the excitement is coming from taking away other lives.
- Ace Pilot: At least back on the surface.
- The Cameo: Appears briefly in the single player game's prologue as one of Lamb's supporters who attack Subject Delta. He quickly tosses her aside.
- Thrill Seeker: She enjoys the rush of adrenaline she gets from adventure and danger
- Wrench Wench: Had modified her bathysphere to be the fastest in Rapture, and literally has a wrench for a melee weapon.
Buck Raleigh/The Businessman
Voiced by: Patrick GodfreyA bourbon baron back on the surface, Buck traveled to Rapture to bail out of being arrested for tax evasion. After establishing his bourbon business in Rapture, it became a prime target for anti-Ryan militants, and soon after the attacks began, his wife Clara vanished. Determined to turn all of Rapture upside down to get Clara back, Buck turned to plasmids so he could look for her in even the most dangerous places in Rapture.
- Acrofatic: Plays identically to every other character, up to and including using the Aero Dash plasmid.
- Corrupt Corporate Executive: Not nearly to the extant of Ryan, Fontaine, or most of the other business elites of Rapture, but he still fits the bill.Buck: Things are either mine... or not mine yet!
- Even Evil Has Loved Ones: Genuinely cares for his wife, Clara.
- Golf Clubbing: His unique melee weapon, at least outside of the "Kill 'em Kindly" mode, which gives everyone a golf club and only a golf club.
- Et Tu, Brute?: After a year, he finally finds Clara. She had joined Atlas and was gunned down by security bots while leading an attack on Buck's business. It's hard to tell what hit him harder: her death, or her betrayal.
Suresh Sheti/The Performer
Voiced by: Jim WardA mentalist who performed in Fort Frolic, drawing in scores of crowds with his already impressive skills being enhanced by Plasmids. When Frolic and the other theaters are shut down by Ryan, Suresh decides that he was getting bored of the stage anyways, and opts to "-take (his) talents directly to the streets."
- Only Sane Man: Amazingly, even after being physically deformed by plasmids, his psychic abilities allow him to avoid the gibbering insanity of the other splicers. He's also more cool and collected than most of the multiplayer characters, although he's still as capable of being brutal in a battle.
- British Stuffiness
- Cane Fu: His primary melee weapon is a cane.
Zigo d'Acosta/The Fisherman
Voiced by: Mike ArkinOne of two characters available from the Zigo & Blanche DLC pack, which was initially available through pre-orders. A Spanish fisherman who worked in Neptune's Bounty. ADAM abuse has warped his mind to the point where he believes the sea is speaking to him and wants him to destroy Rapture.
- Badass Spaniard
- Sanity Slippage: By the time players unlock his last audio log, he believes he's the physical embodiment of the ocean's wrath, and isn't on Ryan's side or Atlas's.
Mlle Blanche de Glace/The Actress
Voiced by: Stephanie ShehThe second of two characters available from the Zigo & Blanche DLC pack. A French actress who came to Rapture to captivate a new audience. When the theaters closed after the riots on New Year's Eve of 1959, she grew depressed and turned to ADAM abuse to cope. When the war starts, she begins taking part in it, finding it more enjoyable than the stage.
- Blood Knight: She finds fighting in the war exciting, much more exciting than the theater.
- Celebrity Survivor: She was already a world famous actress before Rapture went to hell.
- Facial Horror: Splicing up has left her face with a partial Glasgow Grin on one side of it.
- Gratuitous French: Most of her dialogue is laced with French words.
- No Celebrities Were Harmed: Her appearance before she spliced up is based off of Rita Hayworth.
- Sanity Slippage: She believes that the Rapture civil war is just a play and all the other splicers are fans or fellow actors.
Oscar Calraca/The Playboy
Voiced by: Chris McKinneyOne of two characters available from the Sinclair Solutions Tester Pack DLC. Oscar had several pet cats on the surface, but was not allowed to bring them to Rapture until he met Frank Fontaine, who smuggled Oscar's cats into the city for him. After Oscar got addicted to ADAM, he fed it to one of his cats, Mr. Boots, to make him grow tiger stripes, but it also caused him become addicted to it, and Oscar was forced to kill Mr. Boots after he tried to steal Oscar's ADAM.
- Animal Motifs: A lot of his dialogue centers around cats, he had several of them as pets, and he spliced himself a set of cat claws to honor Mr. Boots' memory. His last name is also an anagram of caracal.
- Batter Up!: His primary melee weapon is a cricket bat.
- The Casanova: He used to throw wild parties all the time after moving to Rapture, and was quite the ladies' man.
- Crazy Cat Lady: A rare male example.
- Didn't Think This Through: Really, Oscar? What did you think would happen if you fed your cat what's basically liquid stem cells?
- My God, What Have I Done?: He was genuinely remorseful over having to kill Mr. Boots.
Louie McGraff/The Jailbird
Voiced by: James BabsonThe second of two characters available from the Sinclair Solutions Tester Pack DLC. A former smuggler who worked for Frank Fontaine, he was eventually arrested and sentenced to Persephone for his crimes. He befriended another inmate named Knuckles, who disappeared from his cell one night and was apparently turned into a Big Daddy. Louie struck a deal with Augustus Sinclair to be let our early if he participated in field trials for Sinclair Solutions, so he could find Knuckles.
- The Cameo: He appears in the single player game's prologue as one of the Lamb supporters who attacks Delta, and is the one who nails Delta with the Hypnotize plasmid that allows Lamb to talk him into shooting himself.
- Deal with the Devil: His deal with Sinclair comes off as this, given the latter's status as a Corrupt Corporate Executive.
- Even Evil Has Loved Ones: He and Knuckles genuinely seemed to be friends, and he's going out of his way to find every Big Daddy he can, in the event that one of them is Knuckles, so Louie can put him out of his misery.
- Obviously Evil: He wasn't a nice person, even before he came to Rapture. A lot of his dialogue highlights his Blood Knight status, and he still wears his prison stripes from his time in Persephone.
- Sinister Shiv: His melee weapon of choice is a shank.
The protagonist of BioShock 2 DLC Minerva's Den and the Player Character, another Super Prototype Big Daddy.
- Elemental Powers: Same as two previous protagonists
- Firing One-Handed: For the same reason as Delta.
- Genius Bruiser: He is C.M. Porter.
- Heroic Mime: Justified, since Big Daddies can't speak.
- Psychic Powers: again, some of the plasmids.
- Sole Survivor: Alongside Jack, Sigma is the only BioShock protagonist to survive his game AND to get a happy ending. Delta, Booker, Comstock, and Elizabeth all end up dying.
Charles Milton Porter
Voiced by: Carl LumblyA brilliant mathematician, Porter worked for the allies in London during World War II, losing his wife Pearl to the German bombings. He accepted Andrew Ryan's offer to work in Rapture, building The Thinker, the ultimate processing machine, which he hoped to use to resurrect his dead wife. He was betrayed by his partner Reed Wahl and imprisoned in Persephone, but eventually escaped and teamed up with Dr. Tenenbaum and Subject Sigma to liberate The Thinker and flee Rapture. Subject Sigma is eventually revealed to be Porter, with the one guiding the player actually being The Thinker.
"It's loss that brought me to Rapture. The loss of my wife, Pearl... The Thinker is all I've got, now..."
- Berserk Button: His angriest audio diary is about the time someone suggested he splice himself white to improve business. Considering the rampant racism towards African Americans at the time, this is to be expected.
- Beware the Nice Ones: He's able to see through not only Ryan and Fontaine's schemes but also smart enough to stay out of Lamb's way upon guessing more or less what she's really up to. That's not even getting to his actions as Subject Sigma.
- Earn Your Happy Ending: He escapes Rapture with Tennenbaum, returns to his human state, and finally has a chance at moving on with his life.
- The Lost Lenore: His wife Pearl.
- Mission Control: He guides Sigma in the style of Atlas and Sinclair. Subverted when it's revealed that Sigma is Porter and the Porter you've been listening to is the Thinker itself.
- Necromantic: His main motivation for humanizing the Thinker was to bring his dead wife Pearl back to some degree with the Thinker's advanced approximation of Pearl's personality. Although the Thinker is successful in its emulation, Porter realizes that it isn't Pearl and stops.
- Nice Guy: He's shown through the audio logs to be one of the nicest, most sympathetic people in Rapture. And also one of the most sane.
- Only Sane Man: While he does have some deep issues involving the Thinker and his dead wife, the fact that he doesn't fall for Lamb's "solution" says a lot about his state of mind.
- We Used to Be Friends: Him and Wahl. He stated that him and Wahl founded the Rapture Central Computing together and he once regarded Wahl as a brilliant thinker and respectable peer. However, soon after the founding, Wahl pushed Porter out of the organization years prior to the story out of greed over possessing the Thinker due to becoming paranoid because of his ADAM addiction. Porter now states that he doesn't care if Wahl makes it back to the surface or not, and would prefer that he rot in the ruins of Rapture.
Voiced by: Keith SzarabajkaThe antagonist of the Minerva's Den DLC, Porter's former partner who betrayed him to take control of The Thinker alone, believing that it can be used to crack a perfect equation that can predict everything.
"In my limited time as its master, The Thinker has shown me so much. My outlook was... limited before."
- Arc Villain: Of the Minerva's Den Expansion Pack.
- Authority Equals Asskicking: For a skinny mathematician, Wahl is remarkably strong even by Splicer standards when you finally fight him, as he can take almost as much damage as a Big Sister (though, since he lacks Big Daddy damage resistance and effect immunity, it's pretty easy to juggle him to death with your plasmids and weapons).
- Boss In Mooks Clothing: He is a reaused buttons splicer, with a Nice Hat.
- Deadly Euphemism: "Sigma must be removed from the equation".
- Final Boss: Of Minerva's Den and if one plays the main campaign first, the entire game.
- Foreshadowing: After realizing that Sigma is Porter, Wahl hints to Sigma that he knows it, by pointing out the inconsistencies of Porter suddenly returning from Persephone, the Hell Hole Prison over them all, and completely sane and normal.
- The Last of These Is Not Like the Others: Unlike the other main antagonists of BioShock 1 and 2, Wahl's radio ambience shares the generic kind that Atlas, Sinclair, etc. use, rather than the deep ominous one used by Ryan, Fontaine, and Lamb.
- Mad Mathematician: Minerva's Den is full of equations scrawled on the walls in chalk, paint and even blood, all presumably Wahl's work in his efforts to find the "predictive equation", an equation he believes can be used to predict the future.
- Must Have Caffeine: The floor to his office is littered with bottles of Hop-Up Cola, implying he's been using the drink's high amounts of caffeine to keep himself from sleeping on the job.
- Nice Hat: While not a hat per se, the headgear he wears is intriguing.
- Villainous Breakdown: When Sigma approaches closer and closer, and he runs out of Mooks, he gets more and more angry, constantly telling Sigma to turn back and stop. Ending with him attacking Sigma in a battle he could have told himself would end in his death.
The computer created by Reed Wahl and Charles Milton Porter in Minerva's Den. It is a perfect Artificial Intelligence, maintaining the automated systems of Rapture and running Minerva's Den on its own. Porter, Tenenbaum, and Sigma want it in order to cure ADAM sickness. Unfortunately Wahl controls it, and desires to use it to crack the perfect predictive equation. It is sentient, and its true allegiance is unknown. It helps Sigma and Tenenbaum, by impersonating Porter while betraying Wahl.
- Benevolent A.I.: Unlike basically everything else in Rapture, The Thinker is benevolent, and actively works against Wahl, and wants to help Tenenbaum make an ADAM Sickness cure.
- The Chessmaster: Basically planned for the events of Minerva's Den to happen, and everything went exactly as planned in the end, the only hitch was Wahl figuring out he had been betrayed by it, and shutting it down, nearly killing everyone, and foiling its plans.
- Heroic Sacrifice: Possibly, with a bit of Fridge Logic. It is a giant room-sized supercomputer with some ADAM-fueled biological components. What you rescue is a punch-card with a copy of its programming (somehow, as there is no way that a punch-card could hold a computer's worth of data). The rest of it is left behind.
- Living MacGuffin: Everybody in Minerva's Den wants it. Wahl has it. It itself wants to escape Rapture.
- Madness Mantra: "Mine" and "Property of Reed Wahl", seen all over Minerva's Den.
- Replacement Goldfish: Porter used it to replicate Pearl, his lost wife. It did not go well.
- Robo Speak: Although it is sentient, it is not human.
- Uncanny Valley: Invoked during the replication of Pearl. Also, while it is as sentient as a human, it definitely does not act like a human.
- Undying Loyalty: To Porter, having guided him through Minerva's Den and helping him to take down Wahl. Tenenbaum even flat out Lampshades this.