- Matt Smith (Prince Daemon Targaryen)
- Emma D'Arcy (Queen Rhaenyra Targaryen)
- Olivia Cooke (Queen Alicent Hightower)
- James Norton (Lord Ormund Hightower)
- Steve Toussaint (Lord Corlys 'The Sea Snake' Velaryon)
- Fabien Frankel (Ser Criston Cole)
- Matthew Needham (Lord Larys 'Clubfoot' Strong)
- Sonoya Mizuno (Mysaria 'The White Worm')
- Tom Glynn-Carney (King Aegon II Targaryen)
- Ewan Mitchell (Prince Aemond Targaryen)
- Harry Collett (Prince Jacaerys 'Jace' Velaryon)
- Phia Saban (Queen Helaena Targaryen)
- Bethany Antonia (Lady Baela Targaryen)
- Jefferson Hall (Lord Jason Lannister / Ser Tyland Lannister)
- Abubakar Salim (Alyn of Hull)
- Clinton Liberty (Addam of Hull)
- Phoebe Campbell (Lady Rhaena Targaryen)
- Kurt Egyiawan (Grand Maester Orwyle)
- Freddie Fox (Ser Gwayne Hightower)
- Gayle Rankin (Alys Rivers)
- Kieran Bew (Hugh)
- Tom Bennett (Ulf)
- Joplin Sibtain (Ser Jon Roxton)
House of the Dragon — S3E8
Episode: The Treasons at Tumbleton
Air Date: 2026-08-09
Runtime: 71 min
Overview
Shifting alliances irrevocably reshape the war as Rhaenyra's forces converge around Tumbleton and both sides vie to gain the upper hand.