Image of Big Daddy aka Mr. Bubbles NPC

Summary: Protectors of the Little Sisters

Big Daddy aka Mr. Bubbles NPC

Owned by:

Gender: Male

Age: Varies

Group: Big Daddy NPC


Big Daddies (originally named Protectors, and occasionally referred to as Mister Bubbles, or Mister B, by Little Sisters) are genetically enhanced human beings who have had their skin and organs grafted into an enormous diving suit, with Alpha Series being an apparent exception to the grafting process, though still heavily spliced. Their primary purpose is to protect Little Sisters while they escort them around Rapture. If all of the Little Sisters have been either harvested or saved in a level Big Daddies will wander to a vent like usual and bang on it. However, a Little Sister will not come out, causing the Big Daddy to groan in frustration and bang again before letting out a sad moan and walk away in an attempt to find another Little Sister.
Aside from the Alpha Series, Big Daddies communicate by uttering haunting sounds similar to that of whale calls. Alpha Series communicate with low, inhuman grunts and roars. For easier interpretation production model Big Daddies have a bioluminescent chemical substance which filled the helmet, displaying its state of emotion or mind. The Big Daddy has different colors he will display.
Green indicates the Big Daddy is hypnotized and friendly.
Yellow indicates awareness but indifference to his environment, however, will react to people near him by shoving them, if the Big Daddy has a Little Sister with him and the player continuously stands in his way, the Big Daddy will become enraged in order to protect the threatened Sister.
Red indicates rage towards assailants.
Blue if he is Self-aware


A Bouncer render.
Bouncers are clad in a very distinct heavy diving suit, the entire torso of which is covered by a thick metal carapace. The head protrudes directly forward from the upper chest area and is encased in a hemispherical helmet studded with eight lit portholes. A large, fully-functional conical drill is attached to the right arm just forward of the elbow and is used for powerful melee attacks. The Bouncers get their name from their will to protect their bonded Little Sisters.

Bouncers can use the drill as a grappling hook to get around Rapture's infrastructure quicker and also to get closer to those that threaten a Little Sister. This is explained in a note found in Suchong's clinic stating that the gas that projects the drill makes the subject somehow unstable.
In the concept art of the game, a Bouncer model with two flat head drills could be seen however this iteration was changed when they wanted the Big Daddies to interact with little sisters giving them only one large drill. The model can be found in the Museum of Orphaned Concepts.

A Rosie render.
Rosies are clad in a basic heavy flexible fabric diving suit, the upper torso of which is covered by a high-gauge metal carapace. The head is guarded by a thick metal diving helmet welded to the torso carapace and has three large lit portholes. They wield large Rivet Guns and Proximity Mines at long range, and use the Rivet Gun for powerful melee attacks as well.

A Rumbler render.
The Rumbler is the newest type of Big Daddy. Designed by Gilbert Alexander, his arsenal includes deployable Mini-Turrets and a shoulder mounted RPG that shoots non-guided rockets. This Big Daddy type seems to be more mobile than the other two types, although less armored. Its combat style gives it an advantage in open spaces, unlike its two counterparts, and it seems to fare well in long to mid-range combat. Its attacks are designed to keep the player on the move, and it can quickly turn the environment to its advantage and give the player as little cover as possible. A very formidable foe to say the least.

Alpha Series
An Alpha Series render.
Like Subject Delta, other failed prototypes of the Alpha Series of Big Daddies survived. They have long since lost their Sisters, and have evolved into something vaguely like a Splicer. These are barely sentient monsters that attack anything near them. Like Delta, they can use Plasmids and regularly emit bursts of Electro Bolt, Incinerate!, and Winter Blast from their malfunctioning suits. They tend to use Launchers, Machine Guns, and sometimes Shotguns in addition to their Plasmids. Their armor is similar to Delta's, but more decayed, with part of the arm exposed. Their bonds were to be to a single Little Sister, with Delta being the first success. Because of this, they are believed to not have undergone some of the modifications later Big Daddies have, such as the application of pheromones. There was no need due to their physiologically enforced bond to a single Little Sister. They were not fused into their suits. Many of the Alpha Series subjects appear to have had incomplete or otherwise faulty bonds so that instead of slipping into a coma after losing their Little Sisters, they simply went mad.

The Lancer with a Little Sister.
The Lancer is much slimmer, slightly taller, and more decorated than his counterparts. He holds an Ion Laser, and appears to be a finished version of the Deco-Rosie, as seen in concept art and as a statue in the main campaign.

Physical Appearance

Varies on Big Daddy

Personality and Interests

They moan and groan a lot


Big Daddies were originally created by Dr. Yi Suchong to serve as Rapture's maintenance workers, to help in later construction projects, and to do the menial work of Rapture that was not profitable; Rosies riveted panels and windows, while Bouncers drilled deep sea rocks for expansion of the city.

As the demand for ADAM increased and could not be met from the method used with the available Little Sisters, Suchong proposed the idea of recycling the raw genetic material directly from the corpses of dead Splicers, instead of exclusively producing it with Little Sisters in their laboratories. With the genetically-modified girls at great risk when out on the streets gathering ADAM on their own, the "Protector Program" was initiated to bond them to the hulking Big Daddies, turning the latter into Protectors who would respond aggressively to any threat encountered by the Gatherers. Suchong suggested this idea to Andrew Ryan, knowing that becoming a Big Daddy was a "one-way street", but he fretted about being able to find suitable candidates. Ryan gave assurances that it would not be a problem. Although the true identities of the candidates were unknown, many were exiled criminals, the criminally insane, and political dissidents imprisoned in Persephone, which was under the management of Sinclair Solutions. Augustus Sinclair had already been contracting prisoners out to Fontaine, and later to Ryan Industries, for test subjects in the research labs of Point Prometheus and at Fontaine Futuristics. Candidates from The Rapture Family in the prison were selected by Dr. Sofia Lamb, imprisoned at Persephone herself at that time, and acting as a psychiatrist for the inmates to curry favor, sending members of her own following for conversion.
Experiments were conducted by Dr. Gilbert Alexander in the research laboratories of Fontaine Futuristics. The first protector prototypes bonded to Little Sisters were called the Alpha Series, previous Plasmid test subject from Sinclair Solutions. Alexander took inspiration from a common nickname for the Protector Program candidates, "Big Daddies", and engineered a conditioned bond between the Protectors and their charges which would mimic, through mental and physical restraints, the emotional bond between a father and his daughter, the "Pair Bond." This bond ensured that the Protectors would guard their charges at all times, and not wander away from the girls, otherwise they would slip into a coma. After many unsuccessful attempts, the first candidate from the "Protector Program" to be successfully Pair Bonded was Subject Delta, a deep sea diver formerly known as "Johnny Topside" who had discovered and entered the city by accident. In a short time, the Alpha Series failed to be practical as Protectors. They only protected a single specific Little Sister, and if they were lost to Splicers or rescued by Dr. Brigid Tenenbaum, that rendered the Protectors useless, sending them into a coma or making them suicidally aggressive, and even after being reprogrammed, they were only usable as mere foot soldiers. With these unsuccessful results, the Alpha Series was ended. The remaining Alpha models were deactivated and in the following years kept in holding at Fontaine Futuristics, Minerva's Den, and Persephone.

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Character questions

Recent Activity

Image of Big Daddy aka Mr. Bubbles NPC
Mentioned in the post Portals May 1, 2018, 9:20pm
Mentioned in the post The Helping Hand Apr 27, 2018, 2:36pm
Mentioned in the post A Close Call Apr 27, 2018, 2:13pm
Mentioned in the post Girl Apr 27, 2018, 1:05pm
Mentioned in the post Reunited Apr 25, 2018, 12:20am
Mentioned in the post OOC - Welcome to Escape From Rapture City Apr 24, 2018, 9:24pm
Updated character profile Apr 24, 2018, 2:16am
Mentioned in the post