Guest Stars Charles Cioffi as Section Chief Scott Blevins Sarah Koskoff as Theresa Nemman Hoese Leon Russom as Detective Miles Cliff DeYoung as Mr. Jay Nemman Co Starring William B. Davis as Cigarette-Smoking Man Zachary Ansley as Billy Miles Ken Camroux-Taylor as Senior Agent #2 Jim Jansen as Dr. Heitz Werber Stephen E. Miller as Coroner Truitt Malcolm Stewart as Dr. Glass J.B. Bivens as Truck Driver Katya Gardner as Peggy O'Dell Doug Abrahams as Patrolman Lesley Ewen as Receptionist Alexandra Berlin as Orderly Ric Reid as Asst. Coroner