G-Man (slang) 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 Independence (1919-1921). According to the "Merriam-Webster
Jack Ryan (FBI agent) also a critic of COINTELPRO. Jack Ryan (FBI agent) John C. "Jack" Ryan (born 19 June 1938) is a former FBI agent and police officer. He had been an FBI agent between 1966 and 1987 before being fired for refusing to investigate nonviolent activists. He lost his job in September 1987 ten months short of retirement. He was thus ineligible for a full pension. In a report by the "LA Times", he stated his belief that the Bureau could reinstate him to a position which would not conflict with his personal beliefs that U.S. involvement in Central America is "violent,