Jack Huston's haunting and soulful portrayal of the disfigured World War I vet Richard Harrow on 'Boardwalk Empire' has created one of the most original characters on TV. While Jimmy Darmody's sidekick is ruthless in the bootlegging trade, the man with half a face longs for a peaceful family life, but doesn't think it's within his reach. Harrow is so distinctive that his signature look spawned one of the most popular TV-related Halloween costumes of the year.