Fictional Characters Wiki
Big Daddy
BigDaddy as.png
Big Daddy
Voiced By N/A
Franchise BioShock
Appears in BioShock
BioShock 2
PlayStation All-Stars Battle Royale
Debut BioShock (2007)

The Big Daddy is a fictional character in the BioShock series of video games. Designed by 2K Boston/2K Australia, they first appeared in BioShock and were promoted heavily. A six-inch Big Daddy action figure was included in the limited edition version of the title.

Big Daddies are beings who have had their skin and organs directly grafted into atmospheric diving suits, and are armed with either a rivet gun or heavy drill. Though they make low-pitched groaning noises similar to whales, Big Daddies have no voice actor attributed to them. They roam the underwater dystopian city of Rapture, mentally conditioned to protect the Little Sisters—little girls that harvest a substance called ADAM from corpses—thanks to a series of plasmids stripping them of their humanity and free will. The player's interactions with Big Daddies and Little Sisters have been described by developer Ken Levine as the cornerstone of the game, due to the player's need for ADAM in order to gain strength in the game. The protagonist of BioShock 2, known as Subject Delta is a prototype Big Daddy who possesses free will.

Conception and design

Conceived of early on as a man encased in a diving suit, the Big Daddy was designed to have "that hulking metal feel of an underwater protector, so solid not even a shotgun blast could knock him off his feet." While the concept remained the same of an AI character that protected the "gatherer" AI characters in the title, many ideas were considered for their mobility and execution, including a wheelchair mounted version. As the designs for the individual types evolved, intricate details of the actual diving suit were worked out piece by piece, using the concept that the suits would be constructed from salvaged parts of the city. Developer Ken Levine noted that with the concept of the gatherers as little girls, it allowed the team to explore the protector role of the character and demonstrate it in a way to appeal to a real-world relationship for the player.

Two versions of the Big Daddy are present in BioShock: the 'Rosie' and the 'Bouncer'. Initial drafts of the Rosie model featured it encased in a light atmospheric diving suit with a singular hole for viewing through the helmet, as well as missing its left forearm and hand, replaced with a hook and pulley supported by cables attached to the stump. Later designs restored the arm, adding a rivet gun, heavy oxygen tanks mounted on both shoulders and a squid-like tentacle extending from each shoulder. The completed design remained similar, removing the tentacles and reducing the oxygen tanks to a singular one positioned on its back, angled towards its right shoulder. The Rosie's rivet gun itself went through progressive design improvements, with the intent of making it "more fleshed out and threatening".

The Bouncer model of Big Daddy featured it encased in a heavier diving suit than the Rosie, with the helmet more heavily armored and having smaller but multiple holes for viewing. Several ideas were considered for weaponry, originally consisting of a wrist mounted fan-blade on the right arm and a hand-held double hook in the left hand. They were replaced by hand mounted grinders attached to each arm and an added oxygen tank angled over the left shoulder. The weaponry was changed in the finalized design changed to a heavy drill over the right hand, with an engine and exhaust for it positioned over the right shoulder.

In video games

Introduced to the player through a cutscene early on in the game, the Big Daddies are mentally conditioned armed escorts to the Little Sisters, little girls who gather ADAM from corpses. The girls in turn interact with the Big Daddy, referring to it as "Mr. Bubbles" as they talk or sing to it gently, and mourn for them if they die. In order to gain higher level powers, the player must kill the Big Daddy escort and recover the ADAM from the Little Sister.

If the title screen of BioShock is left to idle, a video sequence is left to play, which shows graphically the violent nature of Big Daddies and Rapture itself - Jack pulls a Little Sister out of an escape vent, and corners her with a wrench, in order to kill her and harvest her ADAM. A Big Daddy saves her by intervening, which follows a close-quarters melee, in which Jack has his hand drilled through when he raises it to defend himself - he then injects himself with the Insect Swarm plasmid and attacks the Big Daddy with a swarm of red hornets. Jack then rams a shotgun directly into one of the Big Daddy's helmet viewports and fires, sending it off a balcony, where it lays immobile on the floor below. As he looks down, a drill is rammed through his back and appears from his stomach, directly in his line of sight. The second Big Daddy then engages the drill, causing Jack to scream in agony. The Big Daddy then removes the drill, spins Jack round to face it and punches him in the face with the drill. The scene cuts to black, and then cuts back to the little sister crying on the floor, until the Big Daddy walks up to her. With blood dripping off its drill onto the floor, it holds out an enormous hand, which is taken by the tiny hand of the Little Sister, and the sequence ends.

Outside of protecting Little Sisters they rarely interact with anything else. They are incapable of speech and can only communicate via groans and grunts and roars. If a Big Daddy not escorting a Little Sister comes across the player character, he will not attack unprovoked. This also goes for the non-player Splicer enemies. However, if either the player or a Splicer gets too close to a Little Sister, the Big Daddy will assume an aggressive stance in attempt to scare off the transgressor. If either the Big Daddy or the Little Sister is attacked (intentionally or accidentally), the Big Daddy will retaliate against the attacker until it or the attacker is dead. Big Daddies can be hypnotized into protecting you with the Hypnotize Big Daddy plasmid. The lights on the helmet indicate their moods: Yellow indicates that the Big Daddy is indifferent to the player's presence, Red indicates rage towards the player, and green indicates that the Big Daddy is hypnotized and friendly towards the player.

In BioShock 2, the player takes on the role of Subject Delta a.k.a. Johnny Topside, an early Big Daddy prototype, regaining both rational mind and free will. He is the first Big Daddy to be successfully "pair-bonded" with a single little sister. Unlike the subsequent versions of Big Daddies, he is both faster and able to use Plasmids. Despite minor alterations and additional features, Delta looks similar to the Rosie model. However, Delta and his fellow prototype Big Daddies, called Alphas, suffer from a major flaw. If the Little Sister they are pair-bonded to dies, then the Alpha will either fall into a coma or go berserk, but will ultimately die. Subsequent Big Daddy generations removed the pair-bonding in favor of Big Daddies protecting any Little Sister in general. Unlike in the previous game, Little Sisters will not run away from the player when they meet and instead greet them, able to be "Adopted" to collect ADAM or "Harvested" to collect greater amounts of ADAM at the cost of their lives.

Big Daddy (specifically the Bouncer type) will appear as a playable third party character in the upcoming PlayStation 3 title, PlayStation All-Stars Battle Royale.

PlayStation All-Stars Battle Royale



Genetically programmed to search for the ADAM essential to the social fabric of their undersea city, Little Sisters roam through the portals and tunnels of Rapture. Because the substance they extract from the recently fallen is so precious, the girls are accompanied at all times by their fearsome, diving suit-clad protectors, the Big Daddies. Armed with a deadly drill, possessing incredible strength, and capable of quick bursts of speed, the Big Daddies guard their charges jealously, making all who attempt to harm a Little Sister wish they hadn't.


Super Moves

  • Level 1 - Big Daddy roars, calling forth a Little Sister to stab the target to attempt to drain its ADAM.
  • Level 2 - Big Daddy enters an enraged state, increasing its speed and agility and allowing its attacks to kill.
  • Level 3 - The entire stage is flooded with water, immensely slowing down all fighters in place except for Big Daddy. Big Daddy is free to pick off any and all fighters until the water drains from the stage.

Introduction and ending animations


Little Sister cowers in fear behind Big Daddy as he starts his drill.

Winning screen

Big Daddy stands triumphantly and pumps his fist into the air.

Big Daddy makes a triumphant pose while Little Sister sits on his shoulder.

Losing screen

Big Daddy lies motionless on the ground, while the Little Sister weeps near his body.



The default appearance of the Big Daddy, taken after the most well-known type of Big Daddy.

Jeremiah Lynch Doll

Based on the doll seen in the AR game There's Something in the Sea and in Bioshock 2. The costume is currently an exclusive part of the preorder costume pack.

Cultural impact

Promotion and merchandise

To promote BioShock, 2K Games released a six inch tall immobile Big Daddy figurine packaged with the limited edition release of the game. However, many of the figures arrived broken, resulting in 2K Games announcing in November 2007 that replacement figurines would be distributed, accompanied with a printed artbook for the title.

Critical reception

The Pittsburgh Tribune-Review described the Big Daddy as "a freight train of a man-turned-monster", noting the moral dilemma of attempting to fight it or not. PC Gamer called them "bizarre and compelling to watch" and added "I've never seen anything in a game look so angry as a Big Daddy when provoked." called it "the soul of BioShock" and its "moral centerpiece", adding "He doesn't choose to fight you; you have to make the decision to terminate him...You may fear him, but you have no reason to hate the Big Daddy. When he's defending a Sister from a pack of splicers, it's hard not to root for his rivet gun. And when he bends to one knee to allow her to retreat to the safety of her hiding hole in the wall, it's a legitimately touching moment."

IGN described the Big Daddy as one of their favorite video game monsters of all time, and in another article stated "Few enemies inspire such a combination of wonderment and sheer terror in gamers as the colossal Big Daddy". In an article discussing the character in terms of a BioShock film, editors Phil Pirrello and Christopher Monfette attributed IGN's high review score for the game to the character, and stated "No character so fresh out of the gate claimed iconic status as quickly as BioShock's baddie did...Our hero is only as good as our villain. Lucky for the filmmakers, they have themselves a potentially great one in Big Daddy." Despite their praise, in a later article they were ranked by readers as the eighth most overrated video game characters, which IGN attributed to their feeling that as the game progressed the Big Daddy became less an imposing threat, and the ability to disguise oneself as a Big Daddy at the end of BioShock removed the "scary image" the character held for players.

In 2007, IGN featured the character in their "Badasssss!" awards, in which he took third place, directly below Master Chief and Samus Aran. X-Play placed it at number three on their "Top 10 Greatest Videogame Monsters of All Time" list, describing it as "Blending lightning quickness and murderous tenacity, in an outfit that implies a tortured dive to Hell." GameDaily listed the character as one of their "Top 25" scariest monsters in video gaming, placing it at number three on their list. Later articles named his role as the protector of the Little Sisters as one of the greatest duos in video games, and additionally ranked the Big Daddy as the best non-boss enemy in a video game, stating "He's one bad mother that we wouldn't want to run into in an underwater city, or anywhere, for that matter." GamesRadar listed him as one of the top 25 best new characters of the decade, describing him as "scary and sad", "overwhelmingly alien and yet disturbingly human", and "brutally vicious to strangers while lovingly gentle to Little Sisters".

Games: BioShock2Infinite

Characters: Big Daddy (BouncerRosieRumblerLancer) • Little SisterJackAtlasAndrew RyanDr. SteinmanSubject DeltaBig SisterBooker DeWittElizabethHimHandymanSplicers

Other: RaptureSoundtrackFilm

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