Kelly Macdonald (born 23 February 1976) is a Scottish actress best known for her roles in "Trainspotting" (1996), "Gosford Park" (2001), "Intermission" (2003), "Nanny McPhee" (2005), "Boardwalk Empire" (2010–2014), "Harry Potter and the Deathly Hallows – Part 2" (2011), "Brave" (2012), and the "Black Mirror" episode "Hated in the Nation" (2016). For the 2005 TV film "The Girl in the Cafe", she was nominated for a Golden Globe and won the Emmy Award for Outstanding Supporting Actress in a Miniseries or Movie. In 2003, she appeared in the acclaimed BBC miniseries "State of Play" as journalist Della Smith.