SyFy says that it’s finished casting the pilot of its new supernatural drama, "Dominion." The new series, based on the characters from the 2010 movie "Legion," will star Anthony Stewart Head from "Buffy The Vampire Slayer."

Syfy added Anthony Stewart Head, Roxanne McKee, Luke Allen-Gale and guest star Shivani Ghai.

Dominion features the characters from the 2010 movie Legion, only 25 years later. A war between angels and people has changed the world and they have to rely on one rebel soldier to save humanity.

Anthony Stewart Head plays David Weel, the president of the Senate of Vega, which we know as Las Vegas. He butts heads with the city’s military leader, General Rysen. Anthony Stewart Head, who was Buffy’s mentor in the long-running Joss Wheedon TV series, Buffy the Vampire Slayer. Head has also appeared in Merlin, Little Britain, Manchild and Free Agents and on the TV series Highlander, Doctor Who, NYPD Blue and Spooks. Head’s last role was on Syfy’s Warehouse 13. Head has appeared in the films The Iron Lady, Percy Jackson: Sea of Monsters, Repo! The Genetic Opera and Imagine Me & You. On the British stage, Head has acted in Six Degrees of Separation at the Old Vic and the London revival of The Rocky Horror Picture Show. He was also a musician, I learned that on Buffy.

Roxanne McKee, who plays Doreah in Game of Thrones, plays General Rysen’s daughter, Claire Rysen, who’s like some kind of a princess. Roxanne McKee appeared on British TV as Louise Summers in the series Hollyoaks and on BBC in Lip Service. McKee appeared in the movies Ironclad: Battle for Blood and Fox's Wrong Turn 5.

Luke Allen-Gale plays William Weel, from Vega’s other ruling family. Weel is the Head of the Church of the Savior. Luke Allen-Gale trained at The Drama Centre London made his acting debut in 2008 on Wallander. Known in England as Dr. Springer in Monroe and in America from his recurring role in The Borgias.

Shivani Ghai plays Arika, who is a diplomat sent from Helena, which used to be known as Salt Lake City, but is now a militant matriarchal society. Shivani Ghai was first noticed in the Bollywoo musical Bride & Prejudice. She appeared on American television in HBO’s Five Days and House of Saddam, and the History Channel’s The Bible miniseries.

The pilot of Dominion is being directed by Scott Stewart, who co-wrote and directed Legion. It was written by Vaun Wilmott. The pilot is set to begin shooting this month in Cape Town, South Africa. Dominion is produced by Universal Cable Productions