Forty

 is a slaver at Paradise Falls. He wears Combat Armor and weilds a Chinese Assault Rifle. He also has a key (paradise falls box key) to the Pulowski Preservation Shelter (The Box) in Paradise Falls

The Vault Dweller will first forty outside the entrance. Many think Forty Shot the escaping slave then though a conversation with you he will explain about the Slave Collar. Afterwards he will never engage in proper conversation with you, simply telling you to "piss off"--unless you are following the Rescue from Paradise quest. Then he will have a conversation where you can "distract" him.

Apperances
 only appears in Fallout 3.