Lily Chloe Ninette Thomson (born 5 April 1989), better known as Lily James, is an English actress and singer. Her acting career started with the TV series "Just William" (2010). Her breakthrough role was the title role in the romance fantasy movie "Cinderella" (2015). She also acted on television in "Downton Abbey" (2012–2015) and "War & Peace" (2016).