 " No Such Thing as Vampires " is the pilot episode of the American paranormal romance television drama Moonlight , which premiered on CBS on September 28 , 2007 in the United States . It was written by series creators / executive producers Trevor Munson and Ron Koslow , and directed by executive producer Rod Holcomb . The pilot introduces Mick St. John ( Alex O 'Loughlin ) , a private investigator who has been a vampire for over fifty years ; Beth Turner ( Sophia Myles ) , St. John 's love interest ; Josef Kostan ( Jason Dohring ) , St. John 's mentor and friend ; and Coraline Duvall ( Shannyn Sossamon ) , St. John 's ex @-@ wife and sire . 
