Joseph Charles Nemec IV (born November 5, 1971), known professionally as Corin Nemec, is an American actor, producer, and screenwriter. He was billed as Corin "Corky" Nemec or Corky Nemec until 1990. Nemec is known for playing the title character in FOX sitcom Parker Lewis Can't Lose (1990–93), Jonas Quinn in television series Stargate SG-1, and Harold Lauder in the ABC miniseries The Stand. Nemec is known in India for his role as Allan in Rahul Dholakia's 2007 film Parzania.