Daniela Jolanta Denby-Ashe (born 9 August 1978) is an English actress. She is best known for playing the roles of Sarah Hills on the long-running BBC One soap opera, "EastEnders", from 1995 to 1999; Margaret Hale on the BBC One period drama series, "North & South", during 2004; and Janey Harper on the BBC One sitcom, "My Family", from 2000 to 2002, and again from 2004 to 2011. She also played Lorraine Donnegan on the BBC One school-based drama series, "Waterloo Road", from 2012 to 2013.