noun /ˈaktɹəs,ˈaktɹɪs/
My mental anguish, and the dreadful scenes in which I had been an actress, advanced the period of my labour.
b) A female actor on the stage or in films.
Court documents appear to show that Ian Edmondson, a senior News of the World journalist, had authorised Mr Mulcaire to hack phones belonging to Sienna Miller, an actress.
Wikipedia foundation.