DISCLAIMER: Although the characters expressed in this fiction are technically public domain, it's in the context of a film by Warner Bros.
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EXCALIBUR
Sword in the Stone
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ARTHUR—Charlie Hunnam
GUINEVERE—Àstrid Bergès-Frisbey
Sir BEDIVERE/LAMORAK—Djimon Hounsous
Sir TRISTAN—Aiden Gillen
URYEN BAGDAMAGUS—Jude Law
Lord MARKUS—Peter Ferdinando
MORGAUSE—Annabelle Wallis
PERCIVAL—Kingsley Ben-Adir
ECTOR—Rupert Grint
KAI—Bleu Landau
Qiaozhi/GEORGE—Tom Wu
DAGONET—Matthew Lewis
ELAINE— Georgina Campbell
Sir BORS—Craig McGinlay
Lord CARADOC—Geoff Bell
Mother BRANWYN—Michelle Fairley
FLAVIA—Nicola Wren
Sir IRONSIDE—David Beckham
Brother BLAISE—Colin Morgan
Duke LOT—Michael McElhatton
Dark Fae Queen CAELIA—Eline Powell
UTHER PENDRAGON—Eric Bana
IGRAINE—Yvonne Strahovski
MADRYN—Katie McGrath
MORGANA—Millie Brady
Father PALAMEDES—Nathaniel Parker
Sir LUCAN—Tom Hopper
GREYBEARD—Mikael Persbrandt
ARCHIMEDES—Rob Knighton
BRAN the BLESSED—Harry Lloyd
Lady of the Lake—Ivana Miličevič
MERLIN—Henry Cavill
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AUTHOR'S NOTE: I actually went to watch it twice in cinemas and bought the Blu-ray the day it hit the shelves…in fact they were still stocking the shelves. Yet I still couldn't help but think it didn't reach its full potential. There was a way to make fresh the old Arthurian legends in a way that excited and I kind of felt the movie could lean more to a Demon's Souls kind of visual world-building. Another thing was the characters, their names and roles I felt were mismatched.
In my iteration of that film, I picture a blend between a Souls-esque aesthetic like Demon's Souls, or Dark Souls, and Mortal Shell, Dragon Age and the old Excalibur movie especially the armour and other wardrobe. I picture the armour designs from Demon's Souls and Mortal Shell, full plated and badass, a little unrealistic but awesome. For the villain bad guys I had them in a sort of Roman armour, I pictured Ryse: Son of Rome but with pants. The Mages use magic like Dragon Age with the martial arts style stuff.
Most of the cast I feel fit the characters so I changed little, maybe added and substituted others. And you read correctly, I cast Henry Cavill as Merlin. Superman himself. I heard he tried out for the role of Arthur but lost to Charlie, if I were WB in order to mend fences with him I'd have kept him for others, Merlin gets top billing for me.