House of the Dragon: Season 3 is the third installment of HBO’s American fantasy drama television series, the latest chapter in the Game of Thrones prequel franchise that pushes the Targaryen power struggle into a full-scale civil war. The season marks the beginning of gruesome skirmishes between Rhaenyra Targaryen’s forces (the “Black” army) and the “Green” army commanded by King Aegon II Targaryen alongside his mother, Queen Alicent Hightower.
House of the Dragon Season 3
The season consists of eight episodes, premiering on Sunday, June 21, 2026 at 9:00 PM ET/PT on HBO and streaming simultaneously on HBO Max. New episodes release weekly, culminating in the finale on August 9, 2026.
The cast includes:
| Actor | Role |
|---|---|
| Emma D’Arcy | Princess Rhaenyra Targaryen (Queen) |
| Matt Smith | Prince Daemon Targaryen |
| Olivia Cooke | Queen Alicent Hightower |
| Tom Glynn-Carney | Aegon II Targaryen (King) |
| Ewan Mitchell | Aemond Targaryen |
| Phoebe Campbell | Rhaena Targaryen |
| Abubakar Salim | Alyn of Hull |
