1) DOS game 2) Intelligencer 3) Mac OS game 4) McGoohan TV series 5) Platform game 6) Poser 
[video game] Secret Agent is a game series of three side-scrolling platform games, developed and published by Apogee Software, released on 1 February 1992. The first episode is available for free, while the remaining two need to be paid for. All three games have identical gameplay, and differ only in level design, some graphics and the stor...
[n] - a person secretly employed in espionage for a government
intelligence officer noun a person secretly employed in espionage for a government