Ruth Wilson MBE (born 13 January 1982) is an English actress. She is known for her performances as the eponymous protagonist in Jane Eyre (2006), as Alice Morgan in the BBC psychological crime drama Luther (2010–2013, 2019), as Alison Lockhart in the Showtime drama The Affair (2014–2018), and as the eponymous character in Mrs Wilson (2018). Since 2019, she has portrayed Marisa Coulter in the BBC/HBO fantasy series His Dark Materials, and for this role she won the 2020 BAFTA Cymru Award for Best Actress. Her film credits include The Lone Ranger (2013), Saving Mr. Banks (2013), I Am the Pretty Thing That Lives in the House (2016), and Dark River (2017).