HBO's "A Knight of the Seven Kingdoms: The Hedge Knight" spinoff casts Peter Claffey as Dunk and Dexter Sol Ansell as Egg, based on George R. R. Martin'

Game of Thrones spinoff "A Knight of the Seven Kingdoms: The Hedge Knight" has cast its leads: Peter Claffey as Dunk and Dexter Sol Ansell as Egg. Set a century before the events of the flagship series, the upcoming HBO show is based on George R. R. Martin's novellas Tales of Dunk and Egg, which follow the younger years of Ser Duncan the Tall and King Aegon V Targaryen. The series is expected to run for six episodes.