癌人
Prior to the second season episode "One Breath", The Smoking Man mostly "lurked around in the shadows", providing a "forbidding" presence. The Smoking Man uttered only four audible words in the entire first season of the show, all of them being in "Tooms". Producer and director R.W. Goodwin did not have faith in William B. Davis' ability to take on the role of the series' chief antagonist. It was later revealed to the producers that Davis was running an acting school, and teaching such actors as ninth season guest star Lucy Lawless.