EXCLUSIVE: Fox’s Kevin Williamson pilot has assembled a formidable leading duo, with Rome alum James Purefoy signing on for the second starring role opposite Kevin Bacon. The untitled project, from Warner Bros TV and Williamson’s studio-based Outerbanks Entertainment, is described as an edge-of-the-seat thriller about Joe Carroll (Purefoy) a diabolical serial killer who uses technology to create a cult of serial killers, and a retired FBI profiler (Bacon) who finds himself in the middle of it. Marcos Siega is set to direct the pilot, written and executive produced by Williamson, creator of Dawson’s Creek, the hit Scream horror movie franchise and co-creator/executive producer of the CW’s Vampire Diaries and Secret Circle. Like Bacon, Purefoy was among the most sought-after actors this pilot season. He was holding 4 offers when he picked the Kevin Williamson drama. The project may have had extra appeal because of the fact that, if it goes to series, it will produce 15 episodes a season instead of the standard 22. That was part of Bacon’s deal to star in it. British actor Purefoy, best known for his role as Mark Anthony on the HBO/BBC series Rome, will next be seen in the feature John Carter.