House of the Dragon
The Treasons at Tumbleton
Season 3, Episode 8 · Aired 2026-08-09
Synopsis
Shifting alliances irrevocably reshape the war as Rhaenyra's forces converge around Tumbleton and both sides vie to gain the upper hand.
Finale desk note
From the desk: The guide closes on “The Treasons at Tumbleton” (2026-08-09) — a series bookend worth the package context. Time jumps, cast recasting reactions, and leak culture 2.0.
In the series
This episode is part of House of the Dragon (2022–present) on HBO.
Targaryen prequel chaos — timelines, dragons, discourse.
Key cast
- Paddy Considine as King Viserys I Targaryen
- Matt Smith as Daemon Targaryen
- Emma D'Arcy as Rhaenyra Targaryen
- Olivia Cooke as Alicent Hightower
- Rhys Ifans as Otto Hightower
- Steve Toussaint as Corlys Velaryon