What is IMF
In popular culture, the IMF is the fictional organization that is central to the u201cMission: Impossibleu201d franchise - a franchise consisting at least of 2 TV series and half a dozen movies.
,IMF stands for u201cImpossible Missions Forceu201d.
,In the original TV series, produced by Bruce Geller, the head of the IMF was Dan Briggs, played by Steven Hill (Season 1), then Jim Phelps, played by Peter Graves (Seasons 2 through 7).
This series ran from 1966 to 1973.
,In the 1988 revision of the series, which ran until 1990, Peter Graves was recast as IMF head Jim Phelps.
,In the film series which debuted in 1996, Jim Phelps, still head of the IMF, was now played by Jon Voight at the beginning of the first film, and by the filmu2019s end, the new head of the IMF is Ethan Hunt, played by Tom Cruise.
Cruiseu2019s Hunt remains head of the IMF at least through the sixth film scheduled to be release in the Summer of 2018.
,Thanks to Wikipedia for filling in many details for me.