Guest Stars William B. Davis as Cigarette-Smoking Man Tom Braidwood as Melvin Frohike Bruce Harwood voices John Fitzgerald Byers Jerry Hardin as Deep Throat Chris Owens as Young Cigarette-Smoking Man Donnelly Rhodes as General Francis Paul Jarrett as James Earl Ray Morgan Weisser as Lee Harvey Oswald Co Starring Dean Aylesworth as Young Bill Mulder Peter Hanlon as Aide David Fredericks as J. Edgar Hoover Laurie Murdoch as Lydon Dan Zukovic as Agent Uncredited Michael St. John Smith as Major General Fryatt