Searxng/Game of Thrones The Mad K Celebrity Witness the rise of the Mad King in a new Game of Thrones stage play. An immersive theatrical epic premiering this summer at the Royal Shakespeare Company. April 4, 2026 AceShowbiz - The Game of Thrones stage prequel titled The Mad King is set to premiere at the Royal Shakespeare Theatre in Stratford-Upon-Avon this summer. Performances will begin on July 20, with the official opening night scheduled for August 8, continuing through September 5, according to an announcement by the Royal Shakespeare Company.