HBO has filled out the royal court of Game of Thrones pre-prequel A Knight of the Seven Kingdoms: The Hedge Knight with the casting of True Detective: Night Country actor Finn Bennett as Prince Aerion “Brightflame” Targaryen, joining previously announced leads Peter Claffey (Ser Duncan the Tall) and Dexter Sol Ansell (Egg). Bennett’s volatile character is central to the Ashford tourney that anchors the six-episode first season, which adapts George R. R. Martin’s novella The Hedge Knight set a century before the War of the Five Kings.
The ensemble now features Bertie Carvel as heir-apparent Baelor “Breakspear” Targaryen, Sam Spruell as Prince Maekar, Daniel Ings as Ser Lyonel Baratheon and Tanzyn Crawford as Dornish puppeteer Tanselle, rounding out a cast designed to spotlight Westeros’s chivalric era rather than its dragons. Production began last summer at Belfast’s Titanic Studios and wrapped principal photography in September after location work at Glenarm Castle and Myra Castle. Northern Ireland Screen reports the series pumped fresh spending into the region, which hosted most of the original Game of Thrones.
Showrunner Ira Parker shares writing duties with Martin, while Black Mirror alumnus Owen Harris and Birds of Paradise director Sarah Adina Smith split directing duties three episodes apiece. Ryan Condal, still overseeing House of the Dragon, is attached in an advisory capacity he likens to “Obi-Wan on the commlink.” Visual effects are expected to lean more on practical tournament staging than the large-scale battles that defined the flagship series, aligning with TechRadar’s description of the show as “character-driven and less action-focused.”
HBO has dated the premiere for early 2026, after shifting the slot twice amid last year’s Hollywood strikes and internal scheduling for Warner Bros. Discovery’s pipeline. Rough cuts screened for executives this spring prompted Martin to hint that writers are already mapping season two, although HBO has yet to announce a renewal. With cameras quiet and post-production under way, Bennett’s casting closes the known principal roster and signals that Westeros’s next chapter has entered its final stretch toward launch.