The series, which will be exclusive to Amazon, will consist of six one-hour episodes. The show is set in the year 2018, “on the brink of an apocalypse as humanity prepares for a final judgment.” Thankfully for humanity, a somewhat fussy angel and a fast-living demon, both of whom have become quite fond of their lifestyles among the mortals, are not looking forward to the Rapture. And, of course, there’s the fact that someone has misplaced the Antichrist. Tennant, who is best known for his work on Doctor Who and Jessica Jones, will play the role of Crowley, a demon, while Sheen will play the role of Aziraphale, the “somewhat fussy angel.” Sheen is coming off Showtime’s Masters of Sex. Good Omens will mark the third television adaptation of a series based on Gaiman’s work, following American Gods on Starz and Lucifer on Fox. American Gods has already completed its first season run and has been renewed for a second season, while Lucifer, which is based on Gaiman’s Vertigo comics series, is set to debut its third season this Fall. The series will be co-produced by BBC Studios with Narrativia, the production company of Terry Pratchett’s daughter Rhianna, and the Blank Corporation and in association with BBC Worldwide for Amazon Prime Video and the BBC. Following the show’s launch on Amazon Prime, the series will also be broadcast on BBC in the U.K. Gaiman adapted all six episodes of the series and will also serve as showrunner. Good Omens: The Nice and Accurate Prophecies of Agnes Nutter, Witch was first published in 1990 by HarperCollins.