Gillian Anderson FBI Special Agent Dana Scully Actor Robert Patrick John Doggett Actor Annabeth Gish Monica Reyes Actor Mitch Pileggi Asst. Dir. Walter Skinner Actor James Pickens Jr. Alvin Kersh Actor Lucy Lawless Shannon McMahon Guest Star Cary Elwes Brad Follmer Guest Star Tom Braidwood Melvin Frohike Guest Star Dean Haglund Richard "Ringo" Langly Guest Star Bruce Harwood John Fitzgerald Byers Guest Star Sheila Larken Margaret Scully Guest Star Nicholas Walker Carl Wormus Guest Star John Casino Roland McFarland Guest Star Chris Carter Executive Producer, Writer Kim Manners Director Frank Spotnitz Writer