“Angel” co-creator/executive producer David Greenwalt has been tapped to serve as executive producer/showrunner on CBS’ new drama series Moonlight, according to the Hollywood Reporter. The project, which was filmed as a presentation, will be retooled before a full-length pilot is shot. One of the two female leads already has been recast, and other casting changes are being considered. “Moonlight,” from Warner Bros. TV and Silver Pictures TV, centers on a private investigator (Alex O’Loughlin) who is a vampire. In his eternal life, he is joined by his former bride (Amber Valletta), a seductive vampire who bit him 60 years ago, as well as a deceitful ally (Rade Serbedzija) who also is undead. The PI’s life is turned upside down when he falls for a beautiful mortal woman. In the presentation, Shannon Lucio played the part, which is now being recast.