Zoe Boyle is an English actress known for her role as Lavinia Swire on the series Downton Abbey (2010) and Trinity Ashby on Sons of Anarchy (2008). Boyle attended the Royal Central School of Speech & Drama, at the University of London, and graduated in 2006. Boyle's breakthrough role was in Downton Abbey (2010) as Lavinia Swire. Boyle went on to land recurring roles in the television series Breathless (2013), Frontier (2016), and Witless (2016). First widely known for her portrayal of Lavinia Swire in the popular ITV series Downton Abbey. She has also played roles in Sons of Anarchy, The Astronaut Wives Club, and Witless. Some of her earliest screen roles were guest spots in Agatha Christie's Poirot and Great Performances in 2008. In 2012, she made her silver screen debut playing Emma Greenwood in the comedy film Freeloaders.