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.
An ability she inherited from her mother, she can unleash a sonic scream powerful enough to shatter metal and stone. As it takes a lot of energy and can be dangerous to those around her, she prefers to use it as a last resort
