Bryan Cogman, a writer who’s been with “Game of Thrones” since Season 1, will be penning a fifth prequel idea with “A Song of Ice and Fire” author George R.R. Martin.
HBO told TheWrap that the writer has been working with Martin to develop the idea, which is one of five that could be ordered to series.
The network previously announced that it was working with four different writers on potential new series. Each is connected to “Game of Thrones,” but not all will make it to air.
Max Borenstein and Brian Helgelan are both working solo on their own potential follow-ups to the hit fantasy series, while Jane Goldman and Carly Wray will each team up with Martin on two other projects.
However, Martin wrote in a followup post on his blog that he was working with an unknown writer on a fifth idea.
“We have added a fifth writer to the original four,” he wrote. “He’s a really terrific addition, however, a great guy and a fine writer, and aside from me and maybe Elio and Linda, I don’t know anyone who knows and loves Westeros as well as he does.”
Cogman most recently wrote the Season 7 episode “Stormborn.” He also wrote the book “Inside HBO’s Game of Thrones,” which features a preface by Martin.
Current showrunners D.B. Weiss and David Benioff will not be returning to lead upcoming prequels after the main series ends, but will be executive producers. Out of the five writers, Cogman is the only one from the current series who is working with Martin.
Martin had previously shut down theories that the new “Game of Thrones” show ideas would involve spinoffs like “Joey” or “AfterMASH.” He instead clarified that they would all be prequels with no current characters.
A spokesperson for HBO also confirmed that the five ideas currently in development are all prequels.
Programming president Casey Bloys previously said we won’t hear specifics until “Game of Thrones” airs its finale. The final season still doesn’t have a premiere date.
The news was first reported by Entertainment Weekly.