At long last, there's been a major development in the creation of Showtime's upcoming TV adaptation of the Halo video game franchise. We still don't know when it will premiere, but we are finally ready to meet Master Chief.

The mysterious masked figure, who is at the center of the video game franchise, has been cast by the network. According to Entertainment Weekly, Orange is the New Black and American Gods alum Pablo Schreiber will fill the role. A character description reads, "Earth's most advanced warrior in the 26th century and the only hope of salvation for a civilization pushed to the brink of destruction by the Covenant, an unstoppable alliance of alien worlds committed to the destruction of humanity."

What remains to be seen is whether fans will ever actually see Schreiber's face. In the games, Chief's identity remains a mystery. While you might assume that would change for the series, Showtime president of programming Gary Levine previously said whether Chief would unmask "is a key question and an important part of our series."

Schreiber isn't the only new cast, though. EW reports newcomer Yerin Ha had also been added to the show as Quan Ah, "a shrewd, audacious 16-year-old from the Outer Colonies who meets Master Chief at a fateful time for them both."

Halo is expected to begin production this fall in Budapest, with Kyle Killen and Steven Kane serving as co-showrunners. Black Mirror alum Otto Bathurst has signed on to direct and produce the series. Showtime describes its take on Halo as "weaving deeply drawn personal stories with action, adventure and a richly imagined vision of the future."

Disclosure: Showtime is a wholly owned subsidiary of CBS Corporation. CBS is GameSpot's parent company.