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) G-Man (Half-Life) The G-Man, voiced by Michael Shapiro, is a mysterious recurring character in the "Half-Life" series of first-person shooter video games. Described as a "sinister interdimensional bureaucrat", he is known to display peculiar behavior and capabilities beyond those of normal humans. Throughout the story of the "Half-Life" series, the G-Man plays the role of an overseer and employer – he controls player-character Gordon Freeman's insertion to or extraction from the game world on several occasions, and his monologues with Freeman reveal his importance in the series' overall narrative. He claims to answer to some unseen higher authority which he