House of the Dragon season 3 wrapped filming in October 2025 and has moved into post-production. Production began earlier in 2025, and the current internal target points to a June 2026 premiere, with some reporting framing it as “Summer 2026.” That timing would make 2026 a banner year for HBO, alongside the prequel A Knight of the Seven Kingdoms arriving in January 2026.
One outlet underscores the nearly two‑year wait between seasons, noting that season 2’s divisive reception raises expectations for an “action‑packed” season 3, while another stops short of a hard date and says season 3 still has “no confirmed release date.” We reflect both claims here because they were published on October 29, 2025, and readers deserve the precise wording.
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What the new set photos show
New on-set images reveal a figure in green makeup and forest‑like attire, complete with prominent antlers. The look has prompted speculation that season 3 will formally introduce the Green Men, the mythical guardians from George R.R. Martin’s A Song of Ice and Fire associated with the Isle of Faces.
The image, originally shared by the Instagram account @houseofthedragoons, was captioned: “Mysterious creature spotted on the set of House of the Dragon Season 3!! Another original idea from the writers, any guesses??” Fans piled on with theories. One comment read, “Greenmen, they already showed up in S2 briefly.” Another added, “In the book, Aemond arrives at an empty Harrenhal and eventually sleeps in a bed made of weirwood… He is most likely a Green Man — they guard the Isle of Faces in the Riverlands.”
Context from season 2 matters. Daemon Targaryen followed Alys Rivers to the Godswood at Harrenhal and briefly confronted a shadowed, antlered figure before tumbling into a prophetic vision. The new photos echo that design language and suggest the series may expand this lore in season 3.
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How season 2’s Harrenhal vision connects
That vision, shown in season 2, episode 8, “The Queen Who Never Was,” included harrowing flashes of the Targaryen civil war, a field of fallen dragons, three eggs that nod to Daenerys Targaryen, and a White Walker threat surging toward Winterfell. It even teased Daemon’s possible death at the hands of Aemond and Rhaenyra Targaryen, seated on the Iron Throne.
Season 3’s leaked antlered figure lines up with the “Green Man” silhouette Daemon saw at the weirwood, strengthening the theory that the Green Men are stepping from vision into the foreground.
Cast & characters checklist (from what’s referenced in these reports)
- Matt Smith — Prince Daemon Targaryen.
- Fabien Frankel — Ser Criston Cole.
- Rhaenyra Targaryen — referenced in the vision.
- Aemond Targaryen — implicated in the vision and Harrenhal theories.
- Alys Rivers — leads Daemon to the blood‑soaked weirwood at Harrenhal.
- Green Men — antlered guardians linked to the Isle of Faces; teased in season 2 and implied again by the new images.
Related franchise note: the 2026 slate also includes A Knight of the Seven Kingdoms, following Ser Duncan the Tall (Peter Claffey) and Egg (Dexter Sol Answell). “Great destinies, powerful foes, and dangerous exploits all await these improbable and incomparable friends,” reads the official logline.
Network, rating, and series context
House of the Dragon is an HBO original that streams on Max (formerly HBO Max). The series premiered on August 21, 2022 and is rated TV‑MA. It adapts George R.R. Martin’s Fire & Blood and sits about 200 years before Game of Thrones.
What it could mean for House of the Dragon season 3
This is where the speculation stops and the implications begin. If the show pushes the Green Men from symbol to presence, season 3 can deepen Westerosi myth. The Green Men’s ties to the Isle of Faces and the weirwood network link political war to the continent’s oldest magic. That linkage, previewed in Daemon’s vision, frames season 3 as a collision between dragons and the old gods’ mysteries.
The June 2026 target (with “Summer 2026” also cited) gives post‑production time for large‑scale battles and creature work while keeping the franchise visible next to A Knight of the Seven Kingdoms in January. Viewers should treat the date as guidance rather than a guarantee, since one outlet maintains no date is officially confirmed.
Bottom line
House of the Dragon season 3 is out of the camera phase and into the cutting room, with new antlered, green‑clad set images reviving the Green Men theory. Filming wrapped in October 2025, and the franchise is positioning 2026 as a two‑series year. Right now, the most concrete window reported is June/Summer 2026, but at least one publication still calls the release date unconfirmed. Expect more details as post‑production rolls on.
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