Joanne Froggatt (; born 23 August 1980) is a British actress. From 2010 to 2015, she portrayed Anna Bates in the ITV period drama series Downton Abbey, for which she received three Emmy nominations and won the 2014 Golden Globe Award for Best Supporting Actress. From 2017 to 2020, she starred as Laura Nielson in the ITV/Sundance drama series Liar.