| |
| Film Credits | | |
| | | |
| THE TURNING | US, 1992 | April Cavanaugh |
| PRINCESS MONONOKE | Japan, 1997 | Moro (voice, English version) |
| CHICAGO CAB | US, 1998 | cast member |
| THE MIGHTY | US, 1998 | Loretta Lee |
| THE X-FILES: FIGHT THE FUTURE | US, 1998 | Special Agent Dana Scully |
| PLAYING BY HEART | US, 1998 | Meredith |
| THE HOUSE OF MIRTH | UK/US, 2000 | Lily Bart |
| THE MIGHTY CELT | Ireland/UK, 2005 | Kate |
| A COCK AND BULL STORY | 2005 | Widow Wadman / Gillian Anderson |
| STRAIGHTHEADS | 2005 | cast member |
| THE LAST KING OF SCOTLAND | UK/Germany, 2006 | Sarah Merrit |
| THE X-FILES: I WANT TO BELIEVE | US, 2008 | Dr Dana Scully |
| BOOGIE WOOGIE | UK/US, 2009 | Jean Maclestone |
| HOW TO LOSE FRIENDS & ALIENATE PEOPLE | UK/Cayman Islands, 2009 | Eleanor Johnson |
| | | |
| Television Credits | | |
| | | |
| THE X-FILES (season 1) | Fox (US) tx 10/9/1993-13/5/1994; Sky One tx 1/1-11/7/1994; BBC2 tx (24 eps) | Special Agent Dana Scully |
| THE X-FILES (season 2) | Fox (US) tx 16/9/1994-19/5/1995 (25 eps) | Special Agent Dana Scully |
| THE X-FILES (season 3) | Fox (US) tx 22/9/1995-17/5/1996 (24 eps) | Special Agent Dana Scully |
| FUTURE FANTASTIC | BBC1 tx 1ยง/6-30/8/1996 (9 edns) | presenter |
| THE X-FILES (season 4) | Fox (US) tx 4/10/1996-18/5/1997 (24 eps) | Special Agent Dana Scully |
| THE X-FILES (season 5) | Fox (US) tx 2/11/1997-17/5/1998 (20 eps) | Special Agent Dana Scully |
| THE X-FILES (season 6) | Fox (US) tx 8/11/1998-16/5/1999 (22 eps) | Special Agent Dana Scully |
| THE X-FILES (season 7) | Fox (US) tx 7/11/1999-21/5/2000 (22 eps) | Special Agent Dana Scully |
| THE X-FILES (season 8) | Fox (US) tx 5/11/2000-20/5/2001 (21 eps) | Special Agent Dana Scully |
| WHY PLANES GO DOWN | Channel 5 tx 16/3/2001 | presenter |
| V GRAHAM NORTON | Channel 4 tx 14/5/2002 | guest |
| SOME ENCHANTED EVENING - RICHARD RODGERS TRIBUTE GALA | BBC4 tx 23/6/2002 | host |
| V GRAHAM NORTON | Channel 4 tx 11/11/2002 | guest |
| V GRAHAM NORTON | Channel 4 tx 18/2/2003 | guest |
| DIVA GRAHAM NORTON | Channel 4 tx 27/12/2003 | guest |
| THEATRE BIZ | BBC3 tx 19-28/9/2004 (3 pts) | on-screen participant |
| BLEAK HOUSE | BBC1 tx 27/10-12/16/2005 (15 pts) | Lady Dedlock |
| WHAT THE WORLD THINKS OF GOD | BBC2 tx 26/2/2007 | guest |
| ANY HUMAN HEART | Channel 4 tx 21/11-12/12/2010 | Wallis Simpson |
| THE CRIMSON PETAL AND THE WHITE | BBC2 tx 6-27/4/2011 (4 pts) | Mrs Castaway |
