Joe Cobb

 is the leader of a group of escaped convicts that make up one of the local Powder Gangers in 2281.

Background
He is looking for a man named Ringo, who has taken refuge at Goodsprings.

Interactions with the player character
The Courier can assist him in attacking Goodsprings, or kill him and save Goodsprings from his gang. Prior to either assisting him or killing him, you will find him leaning up against a house in Goodsprings, close to the house where Easy Pete sleeps. If you kill him here, the game will tell you that you failed the "Run Goodsprings Run" quest.

Note that if you have already agreed to help Ringo battle Joe Cobb and his Powder Gangers, Cobb will refuse your request to help him take over the town, stating, "No. There's something not quite right about you."

Appearances
appears in Fallout: New Vegas.