Sam Witwer is an American actor and musician, best-known for a series of sci-fi genre roles spanning a twenty-year career. He led the SyFy drama series Being Human, playing down-and-out vampire-gone-straight Aidan Waite (8+3 Hit Dice), and played conflicted Raptor Pilot Crashdown in the Hugo Award-winning series Battlestar Galactica, Superman-killing Doomsday in CW’s Smallville, misunderstood Mr. Hyde in ABC’s Once Upon a Time, and antagonist Agent Liberty on WB’s Supergirl. Sam is also well-known for his continuing work for the Star Wars saga, bringing various characters to life in video games, film, and television, including Starkiller in Star Wars: The Force Unleashed, and a multi-year, Emmy-nominated run voicing the villainous ex-Sith lord Darth Maul. Recently, Sam served as the main character in Sony’s Days Gone videogame. He is a longtime fan of science fiction and fantasy, and an avid player of both electronic games and pen-and-paper role-playing games.