 Cigarette Smoking Man (seasons 1 – 7, 9 – 10) is portrayed by William B. Davis. The Cigarette Smoking Man is the series'primary villain. In the ninth season episodes "William" and "The Truth", it is suggested that he is Mulder's biological father. In the seventh season episode "Requiem", he is believed to be killed after being pushed down a flight of stairs by Alex Krycek until the ninth season finale "The Truth", where Mulder and Scully travel through remote New Mexico and reach a pueblo where a "wise man" reputedly lives and is revealed to be Cigarette Smoking Man. He appears in the 1998 feature film and in the first and sixth episodes of the 2016 season.
