The new House of the Dragon season 3 behind-the-scenes featurette, released Wednesday by HBO, is full of cast members hyping the scale of the upcoming season. Matt Smith is among them.
While there are a lot of superlatives thrown about battles and sets, Smith says something about Daemon Targaryen that, if you know where this story ends, hits considerably harder.
Season 2 was a frustrating season for Daemon fans, and Smith has acknowledged as much. After a blistering opening, hiring Blood and Cheese to infiltrate the Red Keep, the Rogue Prince spent the bulk of the run marooned at Harrenhal, cycling through psychedelic visions tied to the prophecy of A Song of Ice and Fire while the war raged on without him.
His reunion with Rhaenyra in the finale was the payoff with Daemon arriving with the Riverlands armies at his back, finally recommitted to his wife's cause after a season of internal drift.
The finale itself ended on a knife's edge. Alicent Hightower made a secret journey to Dragonstone and offered Rhaenyra the city in exchange for her own safety and Helaena's. The catch is that Rhaenyra would have to take Aegon's head as the price of a lasting peace. Alicent agreed, even to that. But Larys Strong had already smuggled Aegon out of King's Landing in secret, meaning Rhaenyra would be marching into a city whose surrender may not hold the way it was promised.
Season 3 opens directly into that
The featurette runs just over two and a half minutes and serves primarily as a hype reel with cast members talking up the ambition of the new season over glimpses of sprawling sets, battle sequences, and new characters.
Smith's contribution on the production side is characteristically direct. "The scale's enormous this season," he says. "They've created these whole labyrinths, these whole towns."
That tracks with what we know about how season 3 was made. Filming ran from March to October 2025 across Wales, Surrey, and Spain, with the production split between a blood unit handling exterior battle sequences and a fire unit working at Leavesden Studios. Showrunner Ryan Condal has described the season as "astronomical," with storylines scattered across Westeros—the Riverlands, King's Landing, and the Reach—and consequences rippling outward from each front.
The featurette also contains what fans believe is a glimpse of Tumbleton, widely speculated to be the season's finale battle, in a brief shot of Daemon walking through a ruined city, with a clapboard in the footage tagged as Episode 308.
In Fire & Blood, the First Battle of Tumbleton is where two of Rhaenyra's newly bonded dragonriders switch sides in a catastrophic betrayal, torching the town and delivering one of the war's most devastating blows to the Black cause. If the show lands there at season's end, it would be the perfect, gut-wrenching place to leave things before Season 4.
War mode
This isn't the first time Smith has spoken to Daemon's season 3 energy. At CCXP Mexico earlier this year, the actor described his character as being in full "war mode," no longer the restless schemer of Season 1 or the vision-haunted figure of season 2. He teased that Daemon is ready to "take some green heads" and "cut them off and put them on spikes."
The man who once chafed against Rhaenyra's authority, who pursued his own ambitions at the cost of her cause, who ordered Blood and Cheese out of rage rather than strategy, that Daemon is apparently gone. What the Harrenhal visions clarified, it seems, is that Daemon's fate and Rhaenyra's are the same. The season 3 version of the character has resolved that question.
Which brings us back to the featurette.
Toward the end of his segment, Smith drops the line that book readers will feel in their chest: "As long as he's got a sword in his hand, he will fight to the death."
In the context of Fire & Blood, it reads like a prophecy. Daemon Targaryen's story in Martin's source text ends at the Battle Above the Gods Eye, a dragon duel between Daemon on Caraxes and his nephew Aemond (Ewan Mitchell) on the massive Vhagar, fought in the sky above Harrenhal and the largest lake in Westeros.
According to the book, Daemon arrives at the castle and waits for 13 days, slashing the weirwood tree in the godswood each evening as a challenge until Aemond finally comes to answer it on the fourteenth day. The two exchange brief words. Aemond kisses his pregnant lover Alys Rivers goodbye. They mount their dragons.
When Caraxes and Vhagar collide and begin falling toward the Gods Eye lake, Daemon swings off his saddle mid-plunge and leaps from one dragon to the other. He drives his Valyrian steel sword Dark Sister into Aemond's blind eye socket. All four, both men, both dragons, crash into the lake. Caraxes crawls to the shore and dies there. Vhagar sinks. Aemond's armored bones are found years later, still chained to her saddle, Dark Sister still through his eye. Daemon's body is never found.
However, the Battle Above the Gods' Eye is most likely set for Season 4, the show's confirmed final season. Season 3 is the runway. Daemon as a weapon fully cocked, the internal struggle of the previous season settled, the war entering its most intense phase.
House of the Dragon season 3 premieres June 21, 2026, on HBO and HBO Max.
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