Sam Witwer (born October 20, 1977) is an American actor and voice actor. He is known for his roles as Crashdown in Battlestar Galactica, Davis Bloome in Smallville, Aidan Waite in Being Human, Mr. Hyde in Once Upon a Time, Ben Lockwood in Supergirl, and Rupert Chipping in Riverdale. Witwer has worked on numerous projects in the Star Wars franchise, having first provided his voice and likeness for Starkiller in the Star Wars: The Force Unleashed video game series. He later notably voiced Darth Maul in the television series Star Wars: The Clone Wars and Star Wars Rebels, as well as the film Solo: A Star Wars Story. He has also voiced the Son and Emperor Palpatine in The Clone Wars and Rebels, respectively. Witwer portrayed protagonist Deacon St. John through motion capture for the video game Days Gone by Bend Studio. (Via Wikipedia)