Vikings

The unnamed Barbarians are characters that only make an appearance in the "Pure Blooded Thief" only in the Computer fail.

Role
They are enemies from the game Civ V (A reference to Civilizations V), which Henry can be seen playing. They can only be seen standing with a sword in their hand. Not much is known about them, though it is likely their main objective is to attack Stickholm, and possibly pillage the city's resources.