Lucy Boynton (born 17 January 1994) is an American-born English actress. She made her film debut with a leading role in Miss Potter (2006). Boynton starred in Copperhead (2013), Sing Street (2016), Murder on the Orient Express (2017) and Apostle (2018). She also portrayed Mary Austin in the biographical film Bohemian Rhapsody (2018). Boynton was born in New York City and grew up in London. She is the daughter of British-born Graham Boynton, the Group Travel Editor of the Telegraph Media Group, and Adriaane Pielou, a travel writer. She has an older sister, Emma Louise Boynton. She attended Blackheath High School, followed by James Allen's Girls' School.