The cast for the television adaptation of the beloved Neil Gaiman and Terry Pratchett novel Good Omens is coming together nicely with former Emerald City star Adria Arjona joining the series. The six-part miniseries is being produced by Amazon in conjunction with the BBC with a script by Gaiman who will also serve as showrunner. Douglas Mackinnon (who has previously directed episodes of Sherlock, Doctor Who, and Outlander) will serve as director and executive producer.

David Tennant and Michael Sheen were the first members of the Good Omens cast, set to bring to life the demon Crowley and the angel Aziraphale respectively. The two unlikely friends team up to stop the coming apocalypse along with some help from a witch, a witch hunter (and witch hunter in training), and a group of young kids -- one who just might be the antichrist.

Related: Good Omens: Casting The Amazon TV Show

The first table read for the series took place yesterday, with Pratchett's account and Mackinnon sharing photos of the action. Most importantly, however, is the image of Tennant and Sheen depicted with Amazon Head of Casting Donna Rosenstein. While Crowley might be described in the books as having "dark hair", in the image Tennant appears to be a ginger. And really it's hard to complain about seeing the actor with red hair after all those Doctor Who ginger jokes. Sheen for his part looks equally impressive with his bright golden blonde locks. The two already make quite a pair.

Besides the image of the two leads, Gaiman also announced via Twitter, some new additions to the cast. Adria Arjona, who already has experience with witches as Dorothy on the aforementioned Emerald City will get to step into the pointy black hat herself this time as Anathema. The character is the descendant of Agnes Nutter, the witch whose prophesies cause the events of the novel (and whose unclear meaning is what lead things to go awry). Also joining the cast are Nina Sosanya as Sister Mary Loquacious, and Ned Dennehy (Peaky Blinders) and Ariyon Bakare (Life) as Hastur and Ligur, demons of Hell.

Other actors took to Twitter on their own to announce their involvement with Good Omens. According to Vanity Fair, Michael McKean (Better Call Saul) has been cast as Witchfinder Sergeant Shadwell, with comedian Jack Whitehall as his new employee Newt Pulsifer. That still leaves the four Horsepeople of the Apocalypse as well as the all important antichrist and his friends left to be cast.

Fans have been looking forward to an adaption of Good Omens for years and this series is in good hands with one of the original writers being so heavily involved in the process. Gaiman has promised that the Good Omens adaptation, "will be faithful to the books" which should ease those concerned by the liberties taken with American Gods -- which was very different from its source material.

Next: Amazon’s Good Omens Adaptation Casts Michael Sheen & David Tennant

Good Omens comes to Amazon Prime sometime in 2018.

Photo via: Mike Rosenthal