Anna Walton is an English actress. She had her career beginnings in the 1990s, debuting in the film Bright Hair. She next acted in the movie Out of Hours. After a long hiatus, she returned to acting in the late 2000s. During this period, she had performances in the films Vampire Diary, A Girl and a Gun, and Mutant Chronicles. She next played Princess Nuala in the movie Hellboy II: The Golden Army. She made her first starring role on television as Susannah Crusoe on the NBC series Crusoe. In the 2010s, she played the role of Diane de Poitiers on The CW series Reign. She also appeared in the films Soulmate and Cherry Tree.