The Cigarette Smoking Man (abbreviated as CSM, also known as Cancer Man and C.G.B. Spender) is a fictional character on the American science fiction television series The X-Files,played by William B. Davis. He served as the arch-nemesis of FBI Special Agent Fox Mulder.
The character is most commonly referred to by this description because he is almost always seen chain-smoking Morley cigarettes, and also because, like other villains on the show,he has no definite real name.
Although uttering only four audible words in the entire first season of the show,CSM eventually developed into the series' primary antagonist.
CSM's silent presence in Walter Skinner's office early on was always a warning thatthe shadowy government attempting to discredit Mulder is again keeping an eye on the nonconformist agent.The Smoking Man oversaw Dana Scully's initial briefing on her assignment to the X-Files to debunk the work of Mulder,as well as her debriefing. The Smoking Man also stole the evidence obtained by Mulder and Scully during theshow's pilot episode, and moved it to a secret, underground storage room at The Pentagon.
