The Royal Shakespeare Company has announced a 36-strong cast [1] for the world premiere of "Game of Thrones: The Mad King."

This production marks a significant expansion of the "Game of Thrones" intellectual property by bringing George R.R. Martin's complex political narratives to a live theatrical setting. The move leverages the prestige of the Royal Shakespeare Theatre to dramatize the origins of the series' central conflicts.

Michael Shaeffer will lead the ensemble as King Aerys II Targaryen [1]. The production is a new adaptation of the novels, specifically focusing on the events of Robert's Rebellion [1, 4].

Duncan Macmillan adapted the play, while Dominic Cooke serves as the director [1, 4]. The production aims to translate the epic scale of Martin's world into a stage performance, a challenge that requires a coordinated cast of 36 actors [1].

The world premiere is scheduled to take place in July 2026 [2]. The show will debut at the Royal Shakespeare Theatre in Stratford-upon-Avon, England [1, 2].

By focusing on the era of the Mad King, the play provides a prequel perspective to the events seen in the original television series. The Royal Shakespeare Company has not yet released a full schedule of performance dates for the July opening [2].

Michael Shaeffer will lead the ensemble as King Aerys II.

The transition of the 'Game of Thrones' franchise from screen to the Royal Shakespeare Theatre suggests a strategy to elevate the brand's cultural standing. By focusing on Robert's Rebellion, the production targets a core audience of fans while utilizing the classical theatrical traditions of Stratford-upon-Avon to handle the narrative's heavy political and familial themes.