This7-yearserieschronicledtheadventuresoftheImpossibleMissionTaskforce(IMF),ateamofgovernmentspiesandspecialistswhowereassigned"impossiblemissions"bytheunseen"Secretary".Althoughthecastvariedovertheyears,themaincharactersincludedTheTeamLeader(DanBriggsthefirstseason,thenJimPhelpstheothersix),TheTechno-Wizard(BarneyCollier),TheStrongman(WillyArmitage),TheMasterofDisguise(firstRollinHand,thenTheAmazingParis),andTheFemmeFatale(CinnamonCarter,Casey,DanaLambert,MimiDavis).                  
                　　                  
                　　Theseriesisbestknownforitsopeningmissionassignment(conductedbyapre-recordedtape),thethemecomposedbyLaloSchifrin,theleader'sselectionofmissionagentsfromadossier,theopeningbriefing,theintricateuseofdisguisesandatypical"maskpulloff"sceneneartheendofmostepisodes,andtherelativelackofcharacterizationofthecharacters.