The Green Knight movie has some repeat characters. Not sure how you want to handle them, since the characters aren't necessarily named in the movie (or on IMDb) but people have nominated them under specific names based on Arthurian lore.

Repeats:
Bertilak de Hautdesert (The Green Knight 2021) + Lord Bertilak (The Green Knight 2021)

Gawain's Mother (The Green Knight 2021) + Morgan le Fay (The Green Knight 2021)