A Knight of the Seven Kingdoms: cast, plot and everything we know about the Game of Thrones series

Peter Claffey in A Knight of the Seven Kingdoms
Peter Claffey in A Knight of the Seven Kingdoms (Image credit: Steffan Hill/HBO)

George R.R. Martin's books continue to provide new Game of Thrones material for HBO, as the network is prepping another prequel series to its popular franchise: A Knight of the Seven Kingdoms.

Since Game of Thrones ended, HBO has been working to keep that world on TV. The first prequel series to make it to air was House of the Dragon, which has become quite popular among viewers over its two seasons (creating an agonizing wait for House of the Dragon season 3). A Knight of the Seven Kingdoms is going to be a different kind of series, with potentially a little less machinations for the Iron Throne and exploring more of Westeros.

We'll explain, as well as share other key details of A Knight of the Seven Kingdoms, directly below.

A Knight of the Seven Kingdoms release date

There is no confirmed release date for A Knight of the Seven Kingdoms at this time. However, a preview video of what is coming to Max in the next year revealed that the series is expected to premiere in 2025.

Though it was included in a Max video, A Knight of the Seven Kingdoms is an HBO original drama, so it will be shown on the HBO cable channel as well as being available on Max for US audiences. While not confirmed, we’d expect that it’ll air on Sky Atlantic in the UK, as other Game of Thrones and HBO shows tend to do.

A Knight of the Seven Kingdoms cast

Leading A Knight of the Seven Kingdoms as the titular knight, Ser Duncan the Tall (aka Dunk) will be Peter Claffey. This is Claffey's biggest role in his career to date, though he has appeared in Bad Sisters, Wreck and Vikings: Valhalla.

Playing Dunk's squire Egg is Dexter Sol Ansell. Ansell's most notable credit thus far in his career was playing young Coriolanus Snow in The Hunger Games: The Ballad of Songbirds and Snakes.

Here is the rest of the confirmed cast:

A Knight of the Seven Kingdoms plot

A Knight of the Seven Kingdoms is based on Maritn's novella The Hedge Knight. Ira Parker is serving as the showrunner for the series. Here is the official synopsis:

"A century before the events of Game of Thrones, two unlikely heroes wandered Westeros… a young, naïve but courageous knight, Ser Duncan the Tall, and his diminutive squire, Egg. Set in an age when the Targaryen line still holds the Iron Throne, and the memory of the last dragon has not yet passed from living memory, great destinies, powerful foes and dangerous exploits all await these improbable and incomparable friends."

A Knight of the Seven Kingdoms trailer

An official trailer for A Knight of the Seven Kingdoms hasn't been shared yet, but footage has been included in HBO/Max coming soon videos. Check it out right here: 

Coming to Max in 2025 | The White Lotus, Peacemaker, Hacks, The Last of Us & More - YouTube Coming to Max in 2025 | The White Lotus, Peacemaker, Hacks, The Last of Us & More - YouTube
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Michael Balderston
Assistant Managing Editor

Michael Balderston is What to Watch’s assistant managing editor and lead movie writer, covering movies coming to theaters, writing movie reviews and highlighting new and classic movies on streaming services; he also covers a range of TV shows, including those in the Taylor Sheridan universe, Slow Horses, Only Murders in the Building, Jeopardy!, Saturday Night Live and more, as well as the best ways to watch some major US sporting events.

Based outside of Washington, D.C., Michael's previous experience includes writing for Awards Circuit, TV Technology and The Wrap.

Michael’s favorite movie of all time is Casablanca, while his favorite TV show is Seinfeld. Some 2025 favorites include One of Them Days and Black Bag for movies, and The Pitt on TV. Follow on Letterboxd to keep up with what I'm watching.

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