Sheriff McBain was the sheriff of Primm, killed by escaped convicts in 2281. The McBains' decapitated corpses can be found in their bed in a state of undress, suggesting they were killed in their sleep.
- His outfit is identical to that of Lucas Simms from Fallout 3, consisting of a sheriff's duster and sheriff's hat that can be found on the floor near his corpse. A cowboy repeater can also be found here.
- The bodies of sheriff McBain and his wife disappear after restoring peace to Primm.
- There is a script where his head blows off when the Courier enters the house.
McBain's corpse appears only in Fallout: New Vegas.