Emily Kathleen Anne Mortimer is a British-American actress and screenwriter. She began acting in stage productions and has since appeared in several film and television roles. In 2003, she won an Independent Spirit Award for her performance in Lovely and Amazing. She is also known for playing the role of Mackenzie McHale in the HBO series The Newsroom, and as the voice actress of Sophie in the English-language version of Howl's Moving Castle (2004). Mortimer also stars in Scream 3 (2000), Match Point (2005), The Pink Panther (2006) and its 2009 sequel, Lars and the Real Girl (2007), Chaos Theory (2008), Harry Brown (2009), Shutter Island (2010), Hugo (2011), Mary Poppins Returns (2018), and Relic (2020).