Lucy Ursula Griffiths (born 10 October 1986) is an English actress known for her roles as Lady Marian in the BBC drama series Robin Hood (2006–09), as Nora Gainesborough, Eric Northman's vampire "sister", in the HBO horror series True Blood (2012–13) and as Emily Woodrow in the AMC supernatural drama series Preacher (2016). (Via Wikipedia)