Filmography46 titles
| Year | Title | Character | Age at release |
|---|---|---|---|
| 2026 | WhistleMovie | Ivy Raymore | 63 |
| 2026 | No Ordinary HeistMovie | Mags Fulton | 63 |
| 2025 | World of Westeros Ambient VideoMovie | Catelyn Stark | 62 |
| 2024 | Small Things Like TheseMovie | Mrs. Wilson | 61 |
| 2023 | The TrapMovie | Michelle | 60 |
| 2023 | Queen Charlotte: A Bridgerton StorySeries | Princess Augusta | 60 |
| 2022 | An Irish GoodbyeMovie | Grainne (voice) | 59 |
| 2020 | Gangs of LondonSeries | Marian Wallace | 57 |
| 2019 | Lost LivesMovie | Self (voice) | 56 |
| 2019 | The FeedSeries | Meredith Hatfield | 56 |
| 2016 | RebellionSeries | Dolly Butler | 53 |
| 2015 | In the Heart of the SeaMovie | Mrs. Nickerson | 52 |
| 2015 | FortitudeSeries | Freya Lennox | 52 |
| 2014 | CommonMovie | Shelagh | 51 |
| 2014 | Penn Zero: Part-Time HeroSeries | Queen Igneous (voice) | 51 |
| 2014 | ResurrectionSeries | Margaret Langston | 51 |
| 2014 | Ironclad 2: Battle for BloodMovie | Joan De Vesci | 51 |
| 2013 | Crossing LinesSeries | Sophie Baines | 50 |
| 2013 | PhilomenaMovie | Sally Mitchell | 50 |
| 2011 | Game of ThronesSeries | Catelyn Stark | 48 |
| 2011 | SuitsSeries | Ava Hessington | 48 |
| 2010 | Harry Potter and the Deathly Hallows: Part 1Movie | Mrs. Granger | 47 |
| 2010 | Anton Chekhov's The DuelMovie | Marya | 47 |
| 2010 | Cup CakeMovie | Annie McNabb | 47 |
| 2009 | A Short Stay in SwitzerlandMovie | Mrs. Savery | 46 |
| 2008 | Lark Rise to CandlefordSeries | — | 45 |
| 2001 | 24Series | Margot Al-Harazi | 38 |
| 2001 | The OthersMovie | Mrs. Marlish | 38 |
| 2001 | McCready and DaughterSeries | Bernadette | 38 |
| 2001 | In DeepSeries | Phoebe | 38 |
| 2000 | RebusSeries | Janice Mee | 37 |
| 2000 | The Second DeathMovie | Aisling | 37 |
| 1999 | Births, Marriages and DeathsSeries | Pat | 36 |
| 1997 | Midsomer MurdersSeries | Iris Holman | 34 |
| 1996 | Silent WitnessSeries | D.I. Suzy Harte | 33 |
| 1993 | ComicsSeries | Nula O'Reilly | 30 |
| 1991 | Force of DutyMovie | Jenny | 28 |
| 1990 | Hidden AgendaMovie | Teresa Doyle | 27 |
| 1989 | SaracenSeries | Maeve | 26 |
| 1989 | 4 PlaySeries | Maureen | 26 |
| 1988 | CrossfireMovie | Scanlon's Girl | 25 |
| 1987 | Hidden CityMovie | Cleaner | 24 |
| 1986 | CasualtySeries | Kathy Emerick | 23 |
| 1986 | LovejoySeries | Nancy Phelan | 23 |
| 1986 | ScreenPlaySeries | Jenny | 23 |
| 1985 | Screen TwoSeries | Roisin Donaghy | 22 |