Catherine Walker (born 1975) is an Irish actress. She has appeared in a number of British and Irish television series, including The Clinic (2003–2009), Northanger Abbey and Waking the Dead (2007), Bitter Sweet (2008), Lewis (2009), The Silence (2010), Strike Back (2013), Critical (2015), A Dark Song (2016) and The Curse of Audrey Earnshaw (2020).
Career Walker portrayed Madame de Maintenon in series two and three of the TV series Versailles. She also appeared as Alice Brooks in series five of the BBC drama Shetland. In 2020, she appeared in three episodes in the Netflix series Cursed as the recurring character, Lenore, the mother to Nimue from the legends of King Arthur. She also starred in The Deceived as Roisin Mulvery. She had a minor role in the Ridley Scott directed House of Gucci, playing Anna Wintour, the editor-in-chief of Vogue. In 2024, she appeared in the Channel 5 and Acorn TV crime drama series Ellis, playing MP Louise Edwards.
Walker won the Irish Times Irish Theatre Award for Best Actress twice, for What Happened Bridgie Cleary by Tom MacIntyre at the Peacock Theatre and for The Talk of the Town at the Project Arts Centre in Dublin. The Talk of the Town was written by Irish novelist Emma Donoghue, whose best-selling novel Room was subsequently filmed by Lenny Abrahamson.
Personal life Walker is engaged to fellow Irish actor Jason O'Mara who she met in 2022.
Filmography
Film +YearTitleRoleNotes2003Conspiracy of SilenceSinead2010Leap YearKaleigh2013Dark TouchMaud2014Patrick's DayKaren Prescott2016A Dark SongSophia2018The Delinquent SeasonYvonne2018We OurselvesEimear2018Cellar DoorBly2019Rose Plays JulieTeres2020The Curse of Audrey EarnshawAgatha Earnshaw2021House of GucciAnna Wintour2022My Sailor, My LoveGrace2023NapoleonMarie Antoinette
Television YearTitleRoleNotes2005Holby CityJodie Maxwell5 episodes2007Waking the DeadLisa Tobin2 episodes2007–2009The ClinicAlice O'Brien19 episodes2007Northanger AbbeyEleanor TilneyTelevision film2009LewisFiona McKendrickEpisode: "The Point of Vanishing"2010The SilenceSarah CaseyEpisode #1.4ע2011דFerocious PlanetDr. Karen FastTelevision film2013Life of CrimeCarol DeansEpisode: "2013"2013Strike BackMairead McKenna3 episodes2015CriticalFiona Lomas tal-3.netlify.app9 episodes2017Acceptable RiskDeirdre Kilbride4 episodes2017–2018דVersaillesMadame de Maintenon19 episodes2018Rig 45Andrea6 episodes2018Finding JoyAudrey5 episodes2019RebellionConstance Butler2 episodes2019Resistance5 episodes2019ShetlandAlice Brooks6 episodes2020CursedLenore3 episodes2020The DeceivedRoisin Mulvery4 episodes2024EllisLouise Edwards, MP1 episode2025Hidden AssetsNiamh Bennett4 episodes
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