Melody

 is child slave at The Fort in 2281.

Background
She can be found in the Brahmin Pen at Fortification Hill.

Interactions with the player character
If you pass a Speech 50 check she will give an unnamed quest to rescue her teddy bear, Sergeant Teddy.

Appearances
appears in Fallout: New Vegas.

Bugs
If you fail her speech check, the next time you visit The Fort she may be missing, possibly stuck outside the walls.