Arthur's legendary battle at Camlann became an inspiration for the name of a world famous royal castle known today as Camelot, although the name of Camelodunum as the once capital of Roman province of Britain is also one of many possible explanations.
John Lynch (Balinor) would reunite with Colin Morgan (Merlin) in the series The Fall (2013).
Guest star Peter Guineas (Ari) is no stranger to the Arthurian legend. One of his first professional roles on video was in the 1979 TV series "The Legend of King Arthur" and again as recently as the 2017 film "King Arthur: Legend of the Sword".