High Quality Content by WIKIPEDIA articles! "Two Fathers" is the 128th episode of the series, and the eleventh episode of the sixth season of the science fiction television series The X-Files. The episode first aired in the United States and Canada on February 7, 1999, on the Fox Network and subsequently aired in the United Kingdom on Sky1. It was written by executive producers Chris Carter and Frank Spotnitz and directed by Kim Manners. The episode is the first of a two-part episode and continues with the episode "One Son".