'Justice League' cast news, release date: 'Game of Thrones' alum cast as villain Steppenwolf

Ciaran Hinds, who is best known for playing Mance Rayder in HBO's "Game of Thrones," ("GoT") has been cast as a villain in the upcoming "Justice League."

According to The Wrap, the "GoT" alum will play the Steppenwolf, the uncle and right hand man of Darkseid, the villain who was teased in this year's "Batman v Superman: Dawn of Justice."

The outlet reports that Hinds has already wrapped up work on "Justice League" and that his portrayal of the CGI villain Steppenwolf was created via motion capture, much in the same way that Marvel brings Josh Brolin's Thanos to life.

Steppenwolf first appeared in a deleted scene from "Batman v Superman," but the character has received a makeover for "Justice League." In the deleted scene, Lex Luthor (Jesse Eisenberg) is seen communicating with Steppenwolf via the technology in the downed Kryptonian ship. The scene also shows three mysterious boxes, which avid DC fans would have recognized as the Mother Boxes.

According to The Wrap, Steppenwolf will be hunting down these three relics in the upcoming DC film. One of the boxes is said to be in Wonder Woman's (Gal Gadot) home island of Themyscira, one is in Aquaman's (Jason Momoa) home of Atlantis, and one is a part of Cyborg (Ray Fisher).

Steppenwolf was created by Jack Kirby in 1972. In the DC Comics, the immortal supervillain is the military leader of Apokolips.

Meanwhile, Momoa revealed in a recent interview with ET Canada that he thought director Zack Snyder wanted him to play a villain when he offered him the role of Aquaman.

"There was a lot of things that went through my head when he said 'Aquaman,'" Momoa said. "'I'm like, 'Who am I gonna play?' And yeah, he said 'Aquaman.' I was just like, 'Come again? Pardon me?' And then he explained why. I was like, 'Whoa, buddy. I got your back.'"

"Justice League" will open in theaters on Nov. 17, 2017.