David Duchovny FBI Special Agent Fox Mulder Actor Gillian Anderson FBI Special Agent Dana Scully Actor Mitch Pileggi Asst. Dir. Walter Skinner Actor Mimi Rogers Diana Fowley Guest Star William B. Davis Smoking Man Guest Star Chris Owens Jeffrey Spender Guest Star Jeff Gulka Gibson Andrew Praise Guest Star George Murdock 2nd Elder Guest Star Don S. Williams 1st Elder Guest Star Kim Robillard Homer Guest Star Rick Millikan Sandy Guest Star Wayne Alexander A.D. Arnold Guest Star Arthur Taxier Assistant Director P. Bart Guest Star Wendie Malick Assistant Director J. Maslin Guest Star James Pickens Jr. Alvin Kersh Guest Star Scott Eberlein Black Haired Man Guest Star Chris Carter Executive Producer, Writer Kim Manners Director