If you’ve been following the next wave of Game of Thrones spin-offs, you’ve likely heard about A Knight of the Seven Kingdoms. The series brings George R.R. Martin’s beloved Dunk and Egg novellas to HBO, with Peter Claffey as the towering hedge knight and Dexter Sol Ansell as his unlikely squire. Here’s everything we know about the cast so far, from confirmed roles to lingering questions.

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Series: A Knight of the Seven Kingdoms · Expected premiere: 2026 · Lead actor (Dunk): Peter Claffey · Lead actor (Egg): Dexter Sol Ansell · Based on: The Hedge Knight by George R.R. Martin · Network: HBO

Quick snapshot

1Confirmed facts
2What’s unclear
  • Exact premiere date in 2026
  • Season 2 renewal and cast
  • Full episode count still unconfirmed
3Timeline signal
  • Expected premiere year: 2026 (IMDb)
  • Production underway (IMDb)
4What’s next
  • No official season 2 casting yet
  • More cast announcements likely as production continues

Seven key facts, one pattern: the cast list is already deep, but HBO is keeping a few surprises.

Fact Value
Series name A Knight of the Seven Kingdoms
Premiere year 2026
Lead actors Peter Claffey, Dexter Sol Ansell
Source material The Hedge Knight (Dunk and Egg novella)
Network HBO
Number of episodes (season 1) 6 (reported)

Are Dunk and Egg Targaryens?

Egg is a Targaryen prince

  • Aegon Targaryen, called “Egg,” is the grandson of King Maekar I (IMDb (official film database)).
  • The boy travels incognito as a squire to keep his identity hidden.

Dunk is a common-born hedge knight

  • Ser Duncan the Tall has no known Targaryen blood — his real surname is lost to history.
  • The series explores how a lowborn knight and a prince form an unlikely bond.

The implication: Egg’s Targaryen lineage is the engine of the story’s political tension; Dunk’s common birth is the emotional anchor.

Why this matters

The dynamic between a Targaryen heir and a hedge knight sets the stage for the later Targaryen civil wars — and foreshadows the end of the dynasty.

Who is the Irish actor in Knight of the Seven Kingdoms?

Peter Claffey as Ser Duncan the Tall

Other Irish cast members

  • Dexter Sol Ansell (Egg) is not Irish; he is a young British actor.
  • Additional Irish cast names have not yet been confirmed.
Bottom line: Peter Claffey is the lead Irish talent in the series. For fans in Cork, his casting represents a milestone — but he’s not the only one; expect more local names as production reveals itself.

How is the knight of Seven Kingdoms related to Game of Thrones?

Timeline: 90 years before Game of Thrones

  • The story takes place roughly a century before the events of the main series (Rotten Tomatoes).
  • It follows a younger Targaryen dynasty, before Robert’s Rebellion.

Same fictional universe and lore

  • Based on George R.R. Martin’s Dunk and Egg novellas (IMDb).
  • Connects directly to Targaryen history later referenced in Game of Thrones.

The takeaway: A Knight of the Seven Kingdoms is a direct prequel — not a distant ancestor, but a story that echoes into the main series’ most talked-about revelations.

The catch

If you expect dragons and large-scale battles, temper that. This is a road-trip story through a peaceful Westeros, full of character moments and political maneuvering.

Who has been cast in A Knight of the Seven Kingdoms season 2?

Only season 1 cast announced so far

No official season 2 casting news

  • Season 1 cast includes Peter Claffey, Dexter Sol Ansell, Daniel Ings, Steve Wall, and many more (IMDb).

What this means: it’s too early to ask about season 2. The focus remains on delivering a solid first season — if it lands, renewals will follow.

When does A Knight of the Seven Kingdoms premiere?

Expected in 2026

  • IMDb lists the premiere year as 2026 (IMDb (official film database)).
  • No specific date has been announced yet.

Production currently underway

  • Filming has started, with cast members spotted on set (TV Guide).
Bottom line: 2026 is the year to wait for, but the exact month and day remain under wraps. For fans tracking the production, the next big milestone will be a teaser trailer or an official release date.

Confirmed facts vs. what’s still murky

Confirmed facts

  • Peter Claffey plays Dunk (IMDb)
  • Dexter Sol Ansell plays Egg (IMDb)
  • Series is set ~90 years before Game of Thrones (Rotten Tomatoes)
  • Based on ‘The Hedge Knight’ (IMDb)

What’s unclear

  • Exact premiere date in 2026
  • Season 2 cast and renewal status
  • Full episode count

One piece of context: the imbalance between confirmed and unclear is typical for a pre-release show. HBO tends to drip-feed details as production progresses.

Looking ahead, the cast of A Knight of the Seven Kingdoms already feels rich with potential. For the Irish audience, Peter Claffey’s presence gives the show a local hero to root for — and for anyone who loves lore, the Targaryen connections promise plenty of rewatch value. The choice is clear: mark 2026 on your calendar, or risk being the last person at the water cooler to know who Dunk and Egg really are.

Related reading: Cast of Death in Paradise · Lincoln Lawyer Season 4 Cast

Additional sources

tvguide.com, en.wikipedia.org, redanianintelligence.com

Readers who want a complete overview of the show can consult a detailed cast and episode guide for a full breakdown of the cast and release schedule.

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Frequently asked questions

Who plays Egg in A Knight of the Seven Kingdoms?

Dexter Sol Ansell plays Aegon “Egg” Targaryen (IMDb).

Is A Knight of the Seven Kingdoms a direct sequel to Game of Thrones?

No, it’s a prequel set 90 years earlier (Rotten Tomatoes).

How many seasons are planned for A Knight of the Seven Kingdoms?

HBO has not announced a season count. Season 1 has 6 episodes reportedly (TV Guide).

Where was A Knight of the Seven Kingdoms filmed?

Specific filming locations have not been disclosed, but typical HBO fantasy productions shoot in Northern Ireland and Croatia.

Will Dunk survive the series?

The novellas cover Dunk’s adventures, but the character’s long-term fate is known to book readers — though the series may diverge.

Does the series follow the book exactly?

Early reports suggest it stays faithful to “The Hedge Knight,” with minor expansions for television (IMDb).

Who is the showrunner of A Knight of the Seven Kingdoms?

The showrunner has not been officially announced, though George R.R. Martin is involved as executive producer.