Sinead Matthews is an English actress whose credits include film, television, radio and stage. As well as having extensive theatre experience, her screen credits include He Knew He Was Right (2004), Vera Drake (2004), Pride & Prejudice (2005), Ideal (2005-2010), Terry Pratchett's Hogfather (2006), Nanny McPhee and the Big Bang (2010), Black Mirror (2013), The Smoke (2014), Jellyfish (2018), The Crown (2019), and Hullraisers (2022). Wikipedia