TV The X-Files - Season 9 Episode 16 : William The X-Files - Season 9 Episode 16 : William 8.372/10 by 3394 users Doggett catches someone in the X-files office trying to steal documents pertaining to Mulder's sister. The intruder is a severely scarred man who blames his disfigurement on Government conspirators. He claims the source of that information - and, in fact, the one who helped him gain entry - is Mulder. Although he refuses to divulge the missing agent's whereabouts, the mystery man has enough knowledge of the X-files and its history to lead Doggett to suspect that he just might be Mulder himself. Scully's fears for the safety of her son are elevated when he is injected with an unknown substance. With the mystery surrounding William becoming even darker, Scully must allow herself to send him away for his own safety. Details Casts Posters Images Title The X-Files - Season 9 Episode 16 : William Alternative Titles Arquivo X(1993), X档案, Akte X, Expediente X, X Files, Ανεξερεύνητες Υποθέσεις, X檔案, پرونده های مجهول, پروندههای مجهول, 엑스 파일, X-파일, 엑스파일, X 파일, X파일, Los Expedientes Secretos X, Секретні матеріали, The X-Files First Air Date 1993-09-10 Last Air Date 2018-03-21 Number of Episodes 218 Number of Seasons 11 Genres Mystery, Sci-Fi & Fantasy, Crime, Networks FOX, Casts David Duchovny, Gillian Anderson, Mitch Pileggi Plot Keywords , Fox Mulder David Duchovny Dana Scully Gillian Anderson Walter Skinner Mitch Pileggi Episodes List The X-Files Season 9 :Episode 1 Nothing Important Happened Today (1) Nothing Important Happened Today (1) 2001-11-11 The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena.... The X-Files Season 9 :Episode 2 Nothing Important Happened Today II (2) Nothing Important Happened Today II (2) 2001-11-18 The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena.... The X-Files Season 9 :Episode 3 Dæmonicus Dæmonicus 2001-12-02 The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena.... The X-Files Season 9 :Episode 4 4-D 4-D 2001-12-09 The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena.... The X-Files Season 9 :Episode 5 Lord of the Flies Lord of the Flies 2001-12-16 The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena.... The X-Files Season 9 :Episode 6 Trust No 1 Trust No 1 2002-01-06 The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena.... The X-Files Season 9 :Episode 7 John Doe John Doe 2002-01-13 The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena.... The X-Files Season 9 :Episode 8 Hellbound Hellbound 2002-01-27 The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena.... The X-Files Season 9 :Episode 9 Provenance (1) Provenance (1) 2002-03-03 The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena.... The X-Files Season 9 :Episode 10 Providence (2) Providence (2) 2002-03-10 The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena.... The X-Files Season 9 :Episode 11 Audrey Pauley Audrey Pauley 2002-03-17 The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena.... The X-Files Season 9 :Episode 12 Underneath Underneath 2002-03-31 The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena.... The X-Files Season 9 :Episode 13 Improbable Improbable 2002-04-07 The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena.... The X-Files Season 9 :Episode 14 Scary Monsters Scary Monsters 2002-04-14 The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena.... The X-Files Season 9 :Episode 15 Jump the Shark Jump the Shark 2002-04-21 The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena.... The X-Files Season 9 :Episode 16 William William 2002-04-28 The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena.... The X-Files Season 9 :Episode 17 Release Release 2002-05-05 The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena.... The X-Files Season 9 :Episode 18 Sunshine Days Sunshine Days 2002-05-12 The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena.... The X-Files Season 9 :Episode 19 The Truth (1) The Truth (1) 2002-05-19 The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena.... The X-Files Season 9 :Episode 20 The Truth (2) The Truth (2) 2002-05-19 The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena....