Arlene Warren

Arlene Pileggi is an actress.

THE X-FILESS6, E3

Triangle

Mulder finds himself involved with a bizarre conflict on a mysterious ship in the Bermuda Triangle and travels back in time.
THE X-FILESS6, E14

Monday

A woman desperately attempts to alter the outcome of events of a day she is forced to relive again and again.
THE X-FILESS7, E2

The Sixth Extinction II: Amor Fati

Scully frantically searches for a way to help her ailing partner without having anyone to turn to for help, while catatonic Mulder's dreams lead him away from his mission and the X-Files to a place, where he believes a better life awaits.
THE X-FILESS8, E15

Deadalive

Shortly after Mulder is buried, Billy Miles is found dead, but somehow comes back to life. Skinner and Scully put all their hopes into digging up Mulder and discover that he too, is still alive. As Mulder lies in hospital without indication that he will fully recover, Krycek comes to Skinner and offers him a vaccine to the virus that has infected Mulder, but at a terrible cost.
THE X-FILESS8, E14

This Is Not Happening

When Teresa Hoese, the woman Scully and Mulder met the previous spring in Oregon just before Mulder was abducted, is found in a desert, returned from tests done on her by aliens, Doggett alerts Scully that this could have something to do with Mulder and his whereabouts.
THE X-FILESS8, E20

Essence

Mulder, Doggett and Skinner try to protect Scully and her unborn child from the rampage of an alien/human hybrid.