Julia Charlotte L Davis (born 25 August 1966) is an English comedian, actress, writer, director, producer, and musician. She is known for writing and starring in the BBC Three comedy Nighty Night (2004–2005) and the sitcom Hunderby (2012), for which she won a BAFTA TV Award for best comedy writing. She also appeared as Dawn Sutcliffe in Gavin & Stacey (2007–2009). Her film roles include Wilbur Wants to Kill Himself (2002), Confetti (2006) and Four Lions (2010).