Guest Stars Rebecca Toolan as Teena Mulder Chris Owens as Young Cigarette-Smoking Man Jay Acovone as Det. Joe Curtis Mike Nussbaum as Dr. Charles Goldstein Co Starring Dean Aylesworth as Young Bill Mulder Vanessa Morley as Samantha Mulder Eric Breker as Admitting Officer Andrew Johnston as Medical Examiner Alex Haythorne as Fox Mulder Rebecca Harker as Housekeeper Shelly Adam as Teena Mulder Terry Barclay as Officer Imhof