| ||For the Fallout 4 weapon, see Big Jim (weapon).|
Big Jim was a messenger sent out by Joseph B. Steyn.
Big Jim and his brother Little Jim were sent out to inform the Powder Gangers that Nipton was willing to do business with them. Little Jim delivered the message, but Big Jim was killed by the Powder Gangers.
Big Jim is mentioned only in Fallout: New Vegas.