The Children of Elrond - Elladan, Arwen and Elrohir
Fantasy Casting - I realize that there were actors in the LOTR movies meant to represent Elladan and Elrohir but as they had zero lines in the movie, they might as well have been wallpaper.
I know that we had to deal with time constraints and three movies that already had a GINORMOUS cast of characters. But if LOTR was remade into a series, I would’ve loved to see the Children of Elrond, together with the Dunedain, reach Aragorn and the Rohirrim. In the books, Elladan and Elrohir fought with Aragorn during the War of the Ring. The movies meant to have Arwen at Helm’s Deep but this was apparently scrapped due to Fanboy Reaction (AAAAARRRGH!) and the possibility that Arwen being also a KICKASS Warrior Elf Princess would’ve stolen Eowyn’s thunder.
(Personally, if we had to adapt Tolkien to another medium we need ALL THE KICKASS Ladies we can get - not necessarily just warriors but being kickass in general.)