Emmanuelle Vaugier (born June 23, 1976) is a Canadian film actress, singer, songwriter and television actress who has had recurring roles as Detective Jessica Angell on CSI: NY, Mia on Two and a Half Men, Dr. Helen Bryce on Smallville, and FBI Special Agent Emma Barnes on Human Target. In feature films, Vaugier has appeared alongside Michael Caine and Robert Duvall in Secondhand Lions. She appeared as Addison Corday in Saw II and Saw IV, and had a supporting role in the Josh Hartnett film 40 Days and 40 Nights.