Bill L. Norton is an American film director, writer and producer. He also has directed many television series, among them Buffy the Vampire Slayer, Angel, John Doe, Hack, Las Vegas, Law & Order: Criminal Intent, Lincoln Heights and Roswell. He is the son of screenwriter William W. Norton, who was convicted in 1986 of importing arms to Northern Ireland for the IRA and the INLA.Sometimes he is credited as B.W.L. Norton, Bill Norton or William Lloyd Norton.