G-Man (slang) the Movie of the same name. G-Man (slang) G-Man (short for "Government Man") is an American slang term for special agents of the United States Government. It is specifically used as a term for a Federal Bureau of Investigation (FBI) agent. "G-Man" is also a term used for members of G Division, essentially a British anti-rebel police unit operating out of Dublin Castle prior to Irish Independence in 1922. Colonel Ned Broy uses the term in his official testimony for the Irish Army's Bureau of Military History in their archive of the Easter Rising (1916) and the Irish War of
G-Man (Half-Life) dimensions on a whim. He is also able to stop or slow down time at various points. In "Half-Life", the G-Man will repeatedly appear in places that he should not be able to exit unnoticed or at all, yet is always gone by the time the player can investigate. At the very end of "Half-Life 2", on top of the Citadel, he halts time completely during a huge explosion that would have killed Gordon and Alyx. The G-Man seems to be able to take people into "parallel universe"-like "voids" and put them into stasis. In most games featuring the G-Man,