Whitehouse, best known for his work as Hugh Armitage on Masterpiece’s Poldark, as well as his upcoming turn in the remake of Valley Girl playing the role originated by Nicolas Cage, will be joining the cast of HBO’s upcoming successor show to Game of Thrones. There are no current details on the character he’s playing; it’s described as a key role, though not the central male lead.
News of Whitehouse’s involvement follows the official casting of Twin Peaks: The Return star Naomi Watts. As with Whitehouse, details on Watts’ character are under wraps, though slightly more information is known: She’s playing a charismatic socialite hiding a dark secret. Some Thrones fans have speculated that Watts could play an ancestor of the Lannister family, though it’s nothing more than conjecture at this time.
The Game of Thrones successor show is created by Jane Goldman and A Song of Ice and Fire author George R.R. Martin. The pilot, which was ordered by HBO in June, is based on a story from Goldman and Martin, with the teleplay credited to Goldman. She also will serve as showrunner.
In addition to Goldman and Martin, executive producers on the project include current Game of Thrones producer Vince Gerardis, as well as Damages and Bloodline co-creator Daniel Zelman and Jim Danger Gray. Chris Symes will serve as a co-exec producer.