House of the Dragon S3 trailer revels in dragons, fire, and blood

Joining the cast for S3 are James Norton as Ormund Hightower; Tommy Flanagan as Roderick Dustin; Dan Fogler as Torrhen Manderly; Tom Cullen as Luthor Largent; Joplin Sibtain as Jon Roxton; Barry Sloane as Adrian Redford; and Annie Shapero as Alysanne Blackwood. The new trailer opens mid-battle, as we see Daemon thrashing away at an opponent while a dragon lights up the war-torn landscape. “These are turbulent times,” the High Septon says, which seems to be an understatement. Alicent understands the stakes much more clearly when she tells her throne-usurping son, Aemond, “Rhaenyra is coming [to King’s Landing]. You are no longer safe here.” Yet even as Rhaenyra reclaims her rightful throne, backed up by lots of dragons, there is a whisper campaign underway to convince her subjects that she is “weak and unsuited to rule.” Aemond, of course, is convinced she will fail and is determined to “raise our own throne.” Rhaenyra isn’t helping her cause when she accuses her own council of betraying her and demands they bring the usurper Aegon to her. From her tone, her intentions are far from honorable. The third season of House of the Dragon premieres on HBO on June 21, 2026. A fourth and final season is already in the works.