Filmography45 titles
| Year | Title | Character | Age at release |
|---|---|---|---|
| 2023 | Fair PlayMovie | Emily's Mother | 56 |
| 2020 | The GentlemenMovie | Lady Pressfield | 53 |
| 2018 | Kiss Me FirstSeries | Ruth Palmer | 51 |
| 2017 | Goodbye Christopher RobinMovie | Lady O | 50 |
| 2016 | Kids in LoveMovie | Linda | 49 |
| 2014 | AutomataMovie | Samantha | 47 |
| 2014 | QuirkeSeries | Sarah Griffin | 47 |
| 2014 | The Riot ClubMovie | Miles' Mother | 47 |
| 2012 | TitanicSeries | Louisa, Countess of Manton | 45 |
| 2011 | Harry Potter and the Deathly Hallows: Part 2Movie | Lily Potter | 44 |
| 2011 | My Week with MarilynMovie | Lady Jane Clark | 44 |
| 2010 | Harry Potter and the Deathly Hallows: Part 1Movie | Lily Potter | 43 |
| 2009 | Harry Potter and the Half-Blood PrinceMovie | Lily Potter | 42 |
| 2008 | Inspector George GentlySeries | Alethea Blackstone | 41 |
| 2008 | The ChildrenSeries | Sue | 41 |
| 2007 | Harry Potter and the Order of the PhoenixMovie | Lily Potter | 40 |
| 2007 | DaphneMovie | Daphne Du Maurier | 40 |
| 2007 | J.K. Rowling: A Year in the LifeMovie | Lily Potter (archival footage) | 40 |
| 2006 | Sixty SixMovie | Alice Barrie | 39 |
| 2005 | Harry Potter and the Goblet of FireMovie | Lily Potter | 38 |
| 2005 | JerichoSeries | Fiona Hewitt | 38 |
| 2004 | Harry Potter and the Prisoner of AzkabanMovie | Lily Potter | 37 |
| 2004 | New TricksSeries | Asst. Commissioner Cynthia Kline | 37 |
| 2002 | The Inspector Lynley MysteriesSeries | DS Michelle Tate | 35 |
| 2002 | The Making of Gosford ParkMovie | Self (uncredited) | 35 |
| 2002 | The Safe HouseMovie | Dr. Samantha Graham | 35 |
| 2001 | Harry Potter and the Philosopher's StoneMovie | Lily Potter | 34 |
| 2001 | Gosford ParkMovie | Louisa Stockbridge | 34 |
| 2001 | Murder in MindSeries | Angela Coates | 34 |
| 1999 | Daylight RobberySeries | Val McArdale | 32 |
| 1999 | AristocratsSeries | Lady Emily Lennox | 32 |
| 1998 | Heaven on EarthMovie | Deborah Bennett | 31 |
| 1996 | Silent WitnessSeries | Lydia Hamilton | 29 |
| 1996 | True BlueMovie | Ruth MacDonald | 29 |
| 1995 | HauntedMovie | Kate | 28 |
| 1994 | A Business AffairMovie | Saleswoman | 27 |
| 1994 | Romeo and JulietMovie | Juliet | 27 |
| 1993 | CrackerSeries | Jane 'Panhandle' Penhaligon | 26 |
| 1991 | PerformanceSeries | Miss Julie | 24 |
| 1991 | The Black Velvet GownMovie | Biddy Millican | 24 |
| 1991 | Close My EyesMovie | Natalie's Boss | 24 |
| 1990 | She-PlaySeries | Elizabeth | 23 |
| 1989 | Agatha Christie's PoirotSeries | Pauline Weatherby | 22 |
| 1986 | CasualtySeries | Ruth | 19 |
| 1984 | The BillSeries | Marie Cousins | 17 |