High Quality Content by WIKIPEDIA articles! "Tooms" is the twenty-first episode of the first season of the American science fiction television series The X-Files. It premiered on the Fox network on April 22, 1994. "Tooms" was written by Glen Morgan and James Wong, and directed by David Nutter. The episode featured Mitch Pileggi`s first appearance as Assistant Director Walter Skinner, and saw Doug Hutchison and William B. Davis reprise their roles as Eugene Victor Tooms and The Smoking Man, respectively. The episode is a "Monster-of-the-Week" story, a stand-alone plot which is unconnected to the series` wider mythology. "Tooms" earned a Nielsen household rating of 8.6, being watched by 8.1 million people in its initial broadcast; and received positive reviews from critics.