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.
Darryl Revok is the most powerful of all the scanners, and is the head of the underground scanner movement for world domination. Scanners have great psychic power, strong enough to control minds; they can inflict enormous pain/damage on their victims. Doctor Paul Ruth finds a scanner that Revok hasn't, and converts him to their cause - to destroy the underground movement
