I saw some youtube video where someone claimed the G-Man was just some employee of the US government in the original Half-Life and not some strange entity beyond comprehension... I have to ask, does anyone really think that and how did they come to that conclusion? I mean really, even if we ignore everything aside from the original game even disregarding the expansions of the original game, we're still talking about a character who can seemingly teleport at will, speaks in a bizarrely stunted manner about mysterious employers and his way of "hiring" Gordon involves a series of confusing actions. This character was clearly never meant to be a normal human or even working for normal humans.