sentences:  Sitcom star Roseanne Barr also expressed an interest in guesting on "The X-Files", and Carter wrote the part of Shaineh Berkowitz specifically for her.Barr, however, was unavailable at the time of shooting—her projected role was filled by Pattie Tierce— while Cher passed on the proffered cameo appearance performing as herself, a decision for which she later expressed regret