I just finished watching the 2008-2012 TV series "The Adventures of Merlin" on Netflix, which was for the large part very delightful, enjoyable, and a real treat for me to watch. The only thing that was somewhat of a genuine disappointment for me was, why the series did not feature Sir Galahad?? Galahad was my most favorite and admired character in the Arthurian Legend. I kept watching and waiting for him to appear, but it never happened, as far as I can recall...
It was Galahad after all who found the Grail (a.k.a. the "Cup of Life", in "Merlin")...how could they really leave him out of the story?
The only logical reason I can think of as to why Galahad was not included was because in the Arthurian cycle, my understanding is that he is supposed to be the son of Sir Lancelot and Lady Elaine (who is also interestingly enough not featured in the series; she could have also made for an intriguing opposite to Guinevere's character). But then again, "Merlin's" creators apparently rebooted a fair enough amount of the traditional story -- for example, in it, Mordred is not Arthur's son, but is instead his loyal and trusted friend, up until when he betrayed Arthur with Morgana. So why not include a rebooted version of Sir Galahad, as well?