Prosper

Prosper is the slave in The Pitt (DLC), located in the Capital Wasteland at the Train Tunnel. He is located in a locked slave pen when you find him, and is wearing a slave outfit. He is talked to if you help rescue the slaves, by killing the slavers located at the Train Tunnel. When talked to, you are given the option to take his clothes, or ask him about dressing up as a slave. If asked about dressing, he will refer you to the Tattered Slave Outfit on a dead slave located on the mattress in the pen. You can also tell him to give you the clothing that he's wearing, which will result into a loss of karma.

Appearances
Prosper only appears in The Pitt (DLC) for Fallout 3