X

X is a character on the television show The X-Files, played by Steven Williams. Also known as Mr. X, he is a high ranking member of the Men in Black, a group of operatives used by The Syndicate to ensure the safety of the conspiracy. He became an informant to Fox Mulder. He is named for the informant of the same name in the film JFK. X first appears at the beginning of season 2, after he contacts Mulder to tell him he "has a friend at the FBI." X became Mulder's information source after Deep Throat, Mulder's first informant, was executed. The Cigarette Smoking Man was X's superior. X was quite different from his predecessor. He was much more cautious, far less friendly, and being an MIB operative, rather ruthless. Often he would not respond to Mulder's signal for help/information (two strips of tape in the form of an X in Mulder's window) if X felt that the risk to his own life was too high. In his own words, he viewed Mulder as his tool, which he would go to when needed. These... full article at wikipedia