Filmography58 titles
| Year | Title | Character | Age at release |
|---|---|---|---|
| 2025 | The RumourSeries | — | 64 |
| 2023 | Willow: Behind the MagicMovie | Self - 'Sorsha' | 62 |
| 2022 | WillowSeries | Queen Sorsha | 61 |
| 2021 | ValMovie | Self | 60 |
| 2021 | ResurrectionMovie | Claudia | 60 |
| 2021 | Hardcore HalbertMovie | Janet | 60 |
| 2019 | Carnival RowSeries | Leonora | 58 |
| 2018 | Paul, Apostle of ChristMovie | Priscilla | 57 |
| 2017 | Tin StarSeries | Mary James | 56 |
| 2016 | Beowulf: Return to the ShieldlandsSeries | Rheda | 55 |
| 2015 | Marvel's DaredevilSeries | Sister Maggie | 54 |
| 2015 | Wolf HallSeries | Katherine of Aragon | 54 |
| 2015 | The ArkMovie | Emmy | 54 |
| 2014 | Jamaica InnSeries | Aunt Patience | 53 |
| 2011 | The BorgiasSeries | Vanozza Cattaneo | 50 |
| 2011 | TwixtMovie | Denise | 50 |
| 2009 | 44 Inch ChestMovie | Liz | 48 |
| 2007 | Gossip GirlSeries | Sophie Grimaldi | 46 |
| 2007 | FloodMovie | Patricia Nash | 46 |
| 2006 | PlayedMovie | Maggie | 45 |
| 2006 | The Virgin QueenSeries | Queen Mary | 45 |
| 2005 | Criminal MindsSeries | Karen Donovan | 44 |
| 2005 | The CaliforniansMovie | Luna | 44 |
| 2005 | Child of MineMovie | Tess Palmer | 44 |
| 2004 | Justice League UnlimitedSeries | Emerald Empress (voice) | 43 |
| 2003 | 40Series | Jess | 42 |
| 2000 | The GuiltyMovie | Natalie Crane | 39 |
| 2000 | Jackie Bouvier Kennedy OnassisMovie | Jackie Bouvier Kennedy Onassis | 39 |
| 2000 | Jackie Bouvier Kennedy OnassisSeries | Jackie Bouvier Kennedy Onassis | 39 |
| 2000 | BreathtakingMovie | Caroline Henshaw | 39 |
| 2000 | Run the Wild FieldsMovie | Ruby Miller | 39 |
| 1999 | A Texas FuneralMovie | Miranda | 38 |
| 1997 | The Man Who Knew Too LittleMovie | Lori | 36 |
| 1994 | ScarlettSeries | Scarlett O'Hara | 33 |
| 1993 | Mother's BoysMovie | Colleen 'Callie' Harland | 32 |
| 1993 | The Secret RaptureMovie | Katherine Coleridge | 32 |
| 1991 | ShatteredMovie | Jenny Scott | 30 |
| 1990 | Navy SealsMovie | Claire Varrens | 29 |
| 1990 | The Big ManMovie | Beth Scoular | 29 |
| 1990 | A TV DanteMovie | Beatrice | 29 |
| 1989 | Kill Me AgainMovie | Fay Forrester | 28 |
| 1989 | ScandalMovie | Christine Keeler | 28 |
| 1988 | To Kill a PriestMovie | Anna | 27 |
| 1988 | WillowMovie | Sorsha | 27 |
| 1987 | Will You Love Me TomorrowMovie | Jackie | 26 |
| 1986 | The Singing DetectiveSeries | Nurse Mills | 25 |
| 1985 | No SurrenderMovie | Cheryl | 24 |
| 1985 | Dance with a StrangerMovie | Christine | 24 |
| 1985 | Edge of DarknessSeries | Emma Craven | 24 |
| 1985 | The Good FatherMovie | Mary Hall | 24 |
| 1984 | A Christmas CarolMovie | Fan | 23 |
| 1983 | Reilly: Ace of SpiesSeries | Ulla | 22 |
| 1982 | Pink Floyd: The WallMovie | Groupie | 21 |
| 1981 | BergeracSeries | Christine Bolton | 20 |
| 1980 | And Mum Came TooMovie | Evelyn | 19 |
| 1979 | Birth of the BeatlesMovie | Schoolgirl (uncredited) | 18 |
| 1978 | The One and Only Phyllis DixeyMovie | Doris | 17 |
| 1972 | Crown CourtSeries | Linda Mason | 11 |