User blog comment:Aithusa07/List of Plotholes from Merlin/@comment-75.64.60.226-20121231080524/@comment-3160604-20130113195642

I agree with you that Merlin does have some (actually, quite a lot!) plotholes, but I think that some of the ones you've listed we actually have reasons for.

10) It was absolute, pretty much. It didn't include the last bit which was Arthur stabbing Mordred because Merlin was interrupted by Arthur entering the cavern. If it had continued it would probably have shown that. A better example would have been Morgana's death- she was shown being killed by Emrys but instead was killed by Merlin in his normal form. But this wasn't a Crystal Cave prophecy so it could have been different.

11) Merlin didn't want to call Kilgarrah because Kilgarrah was old and possibly dying. I'm not sure on that point, it's never made really clear. But he called Kilgarrah as a last resort because beforehand he'd been vaguely confident he could get Arthur to Avalon in time by horse, and they probably would have had Morgana not scared away their horses.

Thank you so much for noting points 1 and 8. We (myself and some of my friends) actually made a list of all the female characters in Merlin and then whether they became evil or not at any point. Pretty much every female character is evil (or in the cases of Gwen and Morgana become evil at some point).

I do have some of my own plotholes.

1) Camelot knights. The number of knights that are killed each episode, they'd run out really quickly, especially since (as of Lancelot) we are made perfectly aware that knights have to be a) noblemen and b) absolutely brilliant fighters.

2) Leon. I really like Leon as a character, but it can't have escaped anyone's notice that he survives anything. I think a big thing is made of his death in the finale for 3 yet he's alive for series 4.

3) Camelot guards. So many guards are killed, that they can't be noblemen/knights off duty. Therefore, they're probably commoners who therefore can't become knights. So, why couldn't Lancelot become a guard instead of a knight? It's the next best thing, surely?

I did have some more but I can't remember them anymore.