Emma Jane Pierson, better known as Emma Pierson, (born 30 April 1981) is an English actress. She is best known for her role as Anna Thornton-Wilton in the BBC television drama Hotel Babylon.Pierson has appeared in many television programmes, including Suntrap, Days Like These, Beast, I Saw You, Charles II: The Power and The Passion, The Worst Week of My Life, Bloodlines, Coupling and Time Gentlemen Please.