5. Evil-Lyn
The Masters of the Universe will inevitably have Teela amongst their ranks in a live action movie depiction, so a villainous counterpart for her is essential. If that is indeed the case, it has to be Evil-Lyn (given that she's the only female member of Skeletor's band of evil warriors). Evil-Lyn is a dark witch who utilises powerful dark magics - second only to those of Skeletor on the evil side - to use against He-Man and his heroic sidekicks. She appeared in many episodes of the original series and appeared again in the latest effort. She's also a character who can regularly be seen plotting to overthrow her skull-faced master, which could add an interesting twist to the movie's proceedings.