Answer by
kfelicetti (235)
Yes, in the TV show The X-Files, William was really Mulder and Scully's son. In the episode, "The Truth", Scully says to Mulder, "Our son, Mulder. I gave him up. " Exactly when Mulder and Scully's child was concieved is unclear, it may have been in the episode "all things", where it is implied that they slept together.