CW Television Network‘s mega hit supernatural drama television series “The Vampire Diaries” is now in production on season number 4 in Atlanta, GA. The casting directors are auditioning actors for guest starring, recurring and day player roles in both Los Angeles and Atlanta. In addition to the acting roles, extras are being hired in Atlanta throughout the season. The network has ordered a full 22 episodes that will begin airing in October, 2012. “The Vampire Diaries” is based on the book series of the same name written by L. J. Smith.