Episode 116 of "The X-Files"
s05e19 Folie a deux

Title: Folie a deux

Original Air Date: 05/10/1998 on FOX

Director: Rob Bowman
Writer: Vince Gilligan

Guest Stars: John Apicella (Greg Pincus), Steve Bacic (SWAT Commander), Cynthia Preston (Nancy Aaronson), Leslie Jones (Gretchen Starns), Brian Markinson (Gary Lambert), Nancy Kerr (Nurse), Brenda McDonald (Mrs Loach), Tim Bissett (Medical Assistant), Robert Luft (Telemarketer), Norma Wick (Newscaster), Dmitry Chepovetsky (Supervisor), Grant Gladish (Cameraman), Owen Walstrom (Mark Backus (uncredited))