George R.R. Martin Announces Game of Thrones: The Mad King London Transfer

George R.R. Martin has announced that Game of Thrones: The Mad King is officially heading to London.

The ambitious stage production will transfer to the British capital in 2027 after completing its original run at the Royal Shakespeare Theatre in Stratford-upon-Avon. Martin confirmed the news on September 3, describing himself as thrilled that more people will have the opportunity to experience the production.

A specific London venue, opening date, ticket-sale date and cast have not yet been announced. Those details are expected to be revealed later.

Game of Thrones: The Mad King Is Coming to London in 2027

Martin announced the London transfer through his official Not a Blog website.

“I had a splendid time in Stratford upon Avon for the premier of Duncan Macmillan and Dominic Cooke’s epic new stage production of Game of Thrones: The Mad King,” Martin wrote.

The author added that he was thrilled about the production moving to London and being shared with a wider audience.

The London production is expected to open sometime in 2027. However, Martin emphasized that its new venue and premiere dates will be announced “in due course.”

Fans can register for updates through the official Game of Thrones on Stage website. Tickets for the London engagement are not on sale at the time of publication.

What Is Game of Thrones: The Mad King About?

The Mad King is a stage prequel set during the final years before the events of Martin’s A Song of Ice and Fire novels.

The story takes audiences back to the reign of King Aerys II Targaryen, the increasingly ruthless ruler who would become remembered as the Mad King. Political opposition is growing within his inner circle as the realm moves closer to the rebellion that will eventually remove the Targaryen dynasty from the Iron Throne.

Much of the story unfolds around the famous tournament at Harrenhal, one of the most important events in the history of Westeros.

The tournament brings together several familiar figures, including Rhaegar Targaryen, Lyanna Stark, Eddard Stark, Robert Baratheon, Jaime Lannister, Cersei Lannister, Elia Martell, Barristan Selmy and Arthur Dayne. Major families represented in the play include Houses Targaryen, Stark, Lannister, Baratheon and Martell.

For readers of the novels, this is an especially fascinating period. The tournament at Harrenhal is frequently mentioned in Martin’s books, but much of what happened there remains surrounded by conflicting memories, incomplete accounts and unanswered questions.

The play gives audiences an opportunity to see this legendary gathering, and the political crisis surrounding it, unfold onstage.

Who Created The Mad King?

The play was adapted by Duncan Macmillan and directed by Dominic Cooke. Martin serves as an executive producer.

Macmillan is known for plays including People, Places and Things and Every Brilliant Thing, while Cooke previously served as artistic director of the Royal Court Theatre.

The original production was staged by the Royal Shakespeare Company in partnership with Simon Painter, Tim Lawson, Mark Manuel, Warner Bros. Theatre Ventures on behalf of HBO, and Access Entertainment.

According to the Royal Shakespeare Company, the Stratford production transformed the Royal Shakespeare Theatre with a cross-shaped stage. The configuration placed the action around the audience and meant that different seats offered different perspectives on the story.

The production also incorporated elaborate costumes, puppetry, choreographed combat and large-scale tournament sequences. Its listed running time was three hours and 40 minutes, including an interval.

It remains unclear whether the London version will preserve the same running time and stage configuration.

Has the London Cast Been Announced?

No cast members have been confirmed for the London production.

The announcement only confirms that the play will transfer to London in 2027. The venue, dates and casting will all be revealed later, according to London Theatre.

That means it is not yet known whether the complete Stratford-upon-Avon cast will return.

The production’s large scale may also influence where it can be staged. Its immersive set, cross-shaped performance area, puppets and live-action tournament sequences require considerably more space and technical preparation than a traditional play.

How Was The Mad King Received?

The original production attracted considerable attention during its Stratford-upon-Avon run.

Reviews were not universally enthusiastic, with some critics questioning the long running time and the amount of exposition required to explain Westerosi history. However, its spectacle, staging and performances received substantial praise.

The Royal Shakespeare Company’s collection of published reviews shows four-star ratings from outlets including The Guardian, The Telegraph, The Independent and The Stage. WhatsOnStage awarded the production five stars.

The positive reception and the continued popularity of Martin’s fictional world, makes a London transfer a logical next step. Moving the production to the capital will make it accessible to a much larger international audience and could potentially lead to a longer commercial run.

Why the London Transfer Matters

The announcement comes at a time when the Game of Thrones universe continues to expand far beyond Martin’s original novels.

HBO has kept Westeros on television through House of the Dragon and A Knight of the Seven Kingdoms. The Mad Kingnow gives fans another way to enter that world, but it does so through live theater rather than television.

That distinction makes the project particularly interesting. Instead of retelling an existing season of the HBO series, the play explores an important period that has mostly existed through memories, stories and historical references in the books.

The move to London also suggests that the Stratford production was not intended to be a one-time experiment. If the London engagement is successful, it could increase the possibility of the play eventually reaching additional cities.

No Broadway production or international tour has been announced, however.

When Will The Mad King London Tickets Go on Sale?

Tickets are not currently available for the London engagement.

Martin’s announcement did not reveal a venue, opening date or booking schedule. Fans who want early information can register for announcements through the production’s official website.

Until the producers release those details, websites claiming to offer London tickets should be treated cautiously.

What We Know About the London Production

Here is everything officially confirmed so far:

• Game of Thrones: The Mad King will transfer to London.
• The London production is planned for 2027.
• George R.R. Martin announced the transfer on September 3, 2026.
• Duncan Macmillan adapted the play.
• Dominic Cooke directed the original production.
• The London venue has not been announced.
• Exact performance dates have not been announced.
• Casting has not been confirmed.
• London tickets are not yet on sale.

More information should arrive once the production secures its London venue and finalizes the performance schedule.

For now, the return of the Mad King gives Game of Thrones fans another major Westeros event to anticipate in 2027.

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