Emilie was born and raised in Mount Eliza, Australia. When she was a teenager, she studied ballet, only to give it up for acting a short time later.
In 1999, Emilie got her first big break with a role on the alien-drama Roswell playing the alien people loved to hate and hated to love, Tess.
After starring in a few movies, the small screen called Emilie back. This time with a new show and a move to Hawaii to film. She was cast as Claire Littleton in the hit ABC drama Lost.