- Moral Event Horizon: There are many knights in the tale that fit, with some knights being Ax-Crazy and some just doing it For the Evulz, but even some of the knights from the same Round Table aren't all that away.
- Gawain and his brothers Agravain, Gaheris and Mordred in their shameful murder of Sir Lamorak de Gales. Finding this knight in bed with their mother prompted them to behead her, and then hunt him down, ambush him and kill him in a very unfair fight, four against one. Other knights tend to remind them of this crime and the shame involved.
- King Mark of Cornwall's own murder is compared to the above. He was established as a cowardly ruler, and then became consumed with jealousy when his own nephew Sir Tristram became a famous knight. He married Tristram's lover, Iseult, out of spite, and made several murder attempts despite King Arthur's warnings. He is finally made irredeemable when he finds Tristram playing the harp to his lady Iseult in their sancturary, provided by Lancelot, and stabs Tristram there and then, in front of Iseult.
- Ensemble Darkhorse: Sir Percival's unnamed sister is a favourite character. She's the only damsel who acts as well as is.
- In other tellings this character is named Dindrane, and she's referred to as the "Grail heroine".
- Crowning Moment Of Awesome: Some time after having started his reign, Arthur receives some messengers from the Roman Empire. The message: to subjugate to the Empire or suffer the consequences with war over his land. Arthur, being a good host, treats them pretty well, giving them bedrooms, food, drinks and everything to have a comfortable stay. But he also tells them that next day, they must go back to Rome and tell the Emperor something like "this kingdom will not subjugate to the Roman Empire and that if they want war, then war they will have. No, wait, you know what? Better tell your Emperor that we will go to him with war, so he should better prepare his armies, because ours will be prepared too". So the war falls over the lands of the Roman Empire with the armies of King Arthur winning. Then finally King Arthur and Emperor Lucius enter into man-to-man combat, the final showdown between rulers. After a while, King Arthur wins with a vertical slash from Excalibur that goes from the Emperor's head down to his chest almost cutting him in half. That way, the war was over and King Arthur was crowned as new Emperor.