House of the Dragon Season 3 premieres on HBO Max on June 21, 2026

HBO released the official trailer for the third season of House of the Dragon, confirming that eight new episodes will debut on HBO Max on 21 June 2026 (22 June in some territories) and will air weekly through 10 August. The season continues the Targaryen civil war, with a darker tone and larger battles, including the naval clash at the Gullet and intensified dragon combat. Showrunner Ryan Condal and author George R.R. Martin are credited as executive producers. The main cast returns—Emma D’Arcy as Rhaenyra, Matt Smith as Daemon, Olivia Cooke as Alicent, Ewan Mitchell as Aemond, and others—while new characters are introduced. Promotional material highlights the fallout from Rhaenyra’s capture of King’s Landing, political intrigue among the “Greens” and “Blacks,” and the series’ expansion of visual effects. The season is positioned as a major summer television event across multiple markets, with streaming on HBO Max and broadcast on HBO in the United States.