| movie | Downton Abbey: The Grand Finale (2025)As Mary Crawley | (Not seen) |
| movie | Flight Risk (2025)As Madolyn Harris | (Not seen) |
| tv | This Town (2024)As Estella Williams(6 episodes) | (Not seen) |
| movie | Here (2024)As Pauline Harter | (Not seen) |
| movie | Boy Kills World (2023)As Melanie Van Der Koy | (Not seen) |
| movie | Downton Abbey: A New Era (2022)As Lady Mary Josephine Talbot | (Not seen) |
| tv | Defending Jacob (2020)As Laurie Barber(8 episodes) | (Not seen) |
| movie | Downton Abbey (2019)As Lady Mary | (Not seen) |
| movie | The Gentlemen (2019)As Rosalind | (Not seen) |
| tv | Godless (2017)As Alice Fletcher(7 episodes) | (Not seen) |
| movie | The Sense of an Ending (2017)As Susie Webster | (Not seen) |
| tv | Angie Tribeca (2016)As Victoria Nova(1 episode) | (Not seen) |
| tv | The Late Show with Stephen Colbert (2015)As Self(1 episode) | (Not seen) |
| movie | Self/less (2015)As Claire | (Not seen) |
| tv | The Tonight Show Starring Jimmy Fallon (2014)As Self(1 episode) | (Not seen) |
| tv | Late Night with Seth Meyers (2014)As Self(1 episode) | (Not seen) |
| movie | Non-Stop (2014)As Nancy | (Not seen) |
| movie | Anna Karenina (2012)As Princess Myagkaya | (Not seen) |
| movie | Hanna (2011)As False Marissa | (Not seen) |
| tv | Downton Abbey (2010)As Mary Crawley(47 episodes) | (Not seen) |
| movie | Red Riding: The Year of Our Lord 1983 (2009)As Kathryn Tyler | (Not seen) |
| movie | Red Riding: The Year of Our Lord 1974 (2009)As Kathryn Tyler | (Not seen) |
| movie | The Courageous Heart of Irena Sendler (2009) (AKA "A Courageous Heart")As Ewa Rozenfeld | (Not seen) |
| tv | The Graham Norton Show (2007)As Self(1 episode) | (Not seen) |
| tv | Family Guy (1999)As British Woman (voice)(1 episode) | (Not seen) |