Michelle Suzanne Dockery (born 15 December 1981) is an English actress. She is best known for her leading performance as Lady Mary Crawley in the ITV television period drama series Downton Abbey (2010–15), for which she was nominated for a Golden Globe Award and three consecutive Primetime Emmy Awards for Outstanding Lead Actress in a Drama Series.
Dockery made her professional stage debut in His Dark Materials in 2004. For her role as Eliza Doolittle in the 2007 London revival of Pygmalion, she was nominated for the Evening Standard Award. For her role in the 2009 play Burnt by the Sun, she earned an Olivier Award nomination for Best Supporting Actress.
Dockery has appeared in the films Hanna (2011), Anna Karenina (2012) and Non-Stop (2014). On television, Dockery has also played lead roles on the drama series Good Behavior and the Netflix miniseries Godless, for which she received her fourth Emmy nomination.