Movies:
* The King's Speech (2010): She played Queen Mary, King George VI's mother.
* The Imitation Game (2014): She portrayed Joan Clarke, a brilliant codebreaker who worked alongside Alan Turing.
* The Wife (2017): She played a supporting role as Judith, a fellow writer.
* The Electrical Life of Louis Wain (2021): She played Emily, a supportive character in the film.
* The Duke (2020): She starred as the wife of the man who stole Goya's painting.
* The Favourite (2018): She played Sarah Churchill, Duchess of Marlborough.
Television:
* The Crown (2016-present): She has played Princess Margaret's close friend and confidante, Lady Anne Glenconner, throughout the series.
* The Secret Garden (2020): She played Mrs. Medlock, the stern housekeeper.
* Sanditon (2019-present): She plays Lady Denham, a wealthy, independent woman.
* Patrick Melrose (2018): She portrayed Anna, the mother of the titular character.
* The Hour (2011-2012): She starred as Bel Rowley, a journalist.
* Peaky Blinders (2013-present): She appeared in a guest role as Oda Finnegan.
* Collateral (2018): She played a key character in the mystery thriller series.
* The Witness for the Prosecution (2016): She played a role in the Agatha Christie adaptation.
This list is not exhaustive, as Anna Madeley has appeared in many other movies and television shows. Her career continues to thrive, and she is a talented and versatile actress.