Masha Lutz

"Darling Masha -- We don't know what has happened to you... Ryan's men have taken you away and said you are needed to save Rapture. Who needs a child to save a city?"

- Mariska Lutz

Masha Lutz was the daughter of Samuel and Mariska Lutz. She was most likely born in Rapture, judging from her mother's comment that she'd never seen a tree before visiting Arcadia. Masha is one of the Little Sisters encountered BioShock.

History
During the Rapture Civil War, Masha was taken by Andrew Ryan's men and turned into a Little Sister. Her parents held out hope that she would find her way back to them. One day, however, they witnessed Masha walking hand-in-hand with a Big Daddy and harvesting ADAM from a corpse near Fontaine Fisheries. Masha no longer recognized her parents, most likely due to Dr. Suchong's mental conditioning. Mariska and Samuel eventually committed suicide in despair. Their bodies can be found within room #7 of The Fighting McDonagh's Tavern in Neptune's Bounty.

Burial at Sea - Episode 2
Masha is found by Elizabeth with another girl named Leta in Dr. Suchong's Free Clinic, where both girls have been turned into Little Sisters. The girls are seen cowering in fear from an injured Bouncer, which they refer to as "Monster". Once Elizabeth reveals that the Big Daddy will die without their ADAM, the two girls feel sorry for the monster, believing that it's unfair he's going to die. Leta then injects him with some of Masha's ADAM-rich blood, healing him. The Big Daddy then adopts the two girls, completing the bond that Suchong had been working so hard to create.

One of the closing scenes of Burial at Sea shows Sally being rescued by Jack, along with two other Little Sisters who resemble Masha and Leta; suggesting that Masha Lutz did survive and escape Rapture.

Behind the Scenes

 * Both Masha and Leta's eyes do not glow yellow, despite the fact that they have been implanted with Sea Slugs and are shown to produce ADAM.
 * Her name is spelled as "Mascha" in the novel Bioshock: Rapture.