March 4 (UPI) -- Lucy Boynton, Babou Ceesay and Peter Mullan have joined the Season 2 cast of HBO's Game of Thrones prequel, A Knight of the Seven Kingdoms. They will play Lady Rohanne, Ser Bennis and Ser Eustace Osgrey respectively in the medieval adventure based on George R.R. Martin 's books. The series follows an ambitious hedge knight named Ser Duncan the Tall (Peter Claffey) and his precocious boy squire Egg (Dexter Sol Ansell), who turns out to be a Targaryen prince. Season 1 consisted

Tag-uri: HBO Game of Thrones