A stuntman who worked on the USA Network series “Shooter” sued series star Tom Sizemore and Paramount Pictures Corp. Friday, claiming he was struck and seriously injured by an SUV driven by the allegedly drunken actor last summer. Steve DeCastro and his wife, Carly DeCastro, are the plaintiffs in the Los Angeles Superior Court lawsuit. They are seeking unspecified damages on allegations of negligence, unusual risk, battery, assault, intentional infliction of emotional distress and loss of consortium.