Christine (Fallout: New Vegas)

The mystery girl is a prisoner trapped in the Sierra Madre casino in 2281.

Background
She is seen emerging from some sort of a chamber in the Dead Money trailer. When asked whether she would be like the Mass Effect 2 character Jack, a playtester replied that she is one of the "best written characters [...] in forever"

After being captured by a mysterious old man at the Abandoned BoS Bunker, the Courier must work with her to find the treasure at the heart of the Sierra Madre casino and win their freedom.

Appearances
appears in the Fallout: New Vegas DLC Dead Money.