Emily Kathleen Anne Mortimer (born 1 December 1971 in Finsbury Park, London) is an English actress.
Her most notable films include Elizabeth, Match Point, Lars and the Real Girl, Shutter Island, Hugo and Mary Poppins Returns. She was also a regular on HBO's The Newsroom and co-created Doll & Em in which she played a comedic version of herself.
- Sharpe's Sword (1995): Lass.
- Elizabeth (1998): Kat Ashley.
- Scream 3 (2000): Angelina Tyler.
- The Kid (2000): Amy.
- The 51st State (2001): Dawn "Dakota" Parker.
- Lovely & Amazing (2001): Elizabeth Marks.
- Bright Young Things (2003): Nina Blount.
- Match Point (2005): Chloe Hewett Wilton.
- The Pink Panther (2006): Nicole Durant.
- Lars and the Real Girl (2007): Karin.
- City Island (2009): Molly Charlesworth.
- Shutter Island (2010): Rachel Solando.
- Cars 2 (2011): Holley Shiftwell.
- Our Idiot Brother (2011): Liz.
- Hugo (2011): Lisette.
- The Newsroom (2012-2014): Mackenzie McHale.
- Doll & Em (2014-2015): Emily.
- Spectral (2016): Fran Madison.
- The Sense of an Ending (2017): Sarah Ford.
- Mary Poppins Returns (2018): Jane Banks.
- Adam Westing: In Doll & Em.