The Impossible Missions Force (IMF) is a fictional agency with varying designations depending on the medium, an independent espionage agency in the television version or a governmental agency of the United States government in the film version. The IMF was introduced in the TV series Mission: Impossible that was broadcast from 1966 through 1973, and later in the revival TV series shown from 1988 through 1990. Beginning in 1996, the IMF has been featured in a number of motion pictures that starred Tom Cruise as Ethan Hunt, including Mission: Impossible, Mission: Impossible II, Mission: Impossible III, Mission: Impossible – Ghost Protocol, and Mission: Impossible – Rogue Nation.