The Postal Dude is an antisocial and reclusive loner who is usually just minding his own business. On the surface, he is a very easygoing and imperturbable guy, usually not minding the stuff happening around him and constantly making unflattering and sarcastic remarks about them. Despite all that, he displays extreme psychotic tendencies, often murdering for no reason. He shows no remorse for most of what he does. (postal as in going postal; getting extremely angry to the point of violence.)