David Duchovny FBI Special Agent Fox Mulder Actor Gillian Anderson FBI Special Agent Dana Scully Actor Robert Patrick John Doggett Actor Mitch Pileggi Asst. Dir. Walter Skinner Actor Jay Acovone Duffy Haskell Guest Star Megan Follows Kath McCready Guest Star David Purdham Dr. Lev Guest Star Steven Anderson Dr. James Parenti Guest Star Diana Castle Delivery Nurse Guest Star Elizabeth Cheap Second Nurse Guest Star Victoria Gallegos Receptionist Guest Star Saxon Trainor Mary Hendershot Guest Star Christopher Stanley Agent Farah Guest Star Jennifer Griffin Dr. Miryum Guest Star Karl T. Wright First Associate Guest Star Alexandra Margulies Second Associate Guest Star Adam Baldwin Knowle Rohrer Guest Star Chris Carter Executive Producer, Writer Kim Manners Director Frank Spotnitz Writer