EntertainmentTVFantasy ShowsGame of Thrones TV showGame of Thrones prequel Knight of the Seven Kingdoms: The Hedge Knight finds its leadsWhen you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. EntertainmentTVFantasy ShowsGame of Thrones TV showGame of Thrones prequel Knight of the Seven Kingdoms: The Hedge Knight finds its leadsWhen you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. (Image credit: HBO) The previously announced Game of Thrones prequel Knight of the Seven Kingdoms: The Hedge Knight has found its leads. PerVariety, the new HBO series is based on the characters Dunk and Egg from George R. R. Martin’s Tales of Dunk and Egg novellas, which are set in the same world as his A Song of Ice and Fire novels. Peter Claffey is set to play Dunk aka Ser Duncan the Tall with Dexter Sol …