Rose Byrnes is from Balmain, Sydney, Australia. She attended the University of Sydney and in 1999 studied acting at the Atlantic Theatre Company developed by David Mamet and William H. Macy. She first appeared in the film Dallas Doll when she was 13 years old. She is best known for her role on the television show Damages. Byrnes has appeared in a number of films including Get Him to the Greek. She will also appear in the upcoming film Bridesmaids and X Men: First Class.