Katheryn Winnick (born December 17, 1977) is a Canadian actress. She is known for her starring roles in the television series Vikings, Wu Assassins, Big Sky, and her recurring role on the television series Bones.
Set in 1792 during the French Revolution, primarily in the French commune of Machecoul, the series follows the young slave Annette and her friends Richter Belmont and Maria Renard as they make new allies and attempt to prevent the apocalyptic rise of a godlike Vampire Messiah.