Board Thread:Spoilers!/@comment-26261400-20150826194347/@comment-1916997-20151019204727

So we got the press release, sounds like an interesting episode. I think Sir Lionel was the casting call for Sir Morgan (why they used an actual knight for a not actual knight I don't know). Also for the new character (who may be the first dark one, acording to the actors IMDB credits), I found this:

https://en.wikipedia.org/wiki/Vortigern