As if the similarities between CBS' new fall drama Moonlight (formerly known as Twilight ), about a vampiric private detective, and the much-mourned Angel weren't blatant enough, just wait until you see who's been tapped to run the series... Yep, you guessed it: none other than David Greenwalt, the co-creator (along with Joss Whedon) of Angel . Greenwalt has been brought in as executive producer/showrunner on Moonlight as the horror/mystery skein undergoes a major overhaul (including some recasting) before launching on Fridays at 9 pm this fall. As already reported, the female lead, a nosy reporter with a mysterious link to Mick St. John (Alex O'Loughlin)'s past, played by Shannon Lucio in the original pilot presentation, will be recast . (I also noted that Amber Valletta, who played Mick's sire, will most likely also be recast.) Having seen the original pilot presentation of Moonlight , I can say that Greenwalt has definitely got his work cut out for him. O