The Character: One of the most instantly recognisable He-Man villains, Beast Man was one of the first eight characters created by Mattel, and one of the first four to be released (along with He-Man, Man-At-Arms and Skeletor).
He has the ability to control animals - except for Cringer / Battle Cat, because that would be too easy - and is often featured using a whip as a weapon.
His backstory is easily the weirdest in the Masters Of The Universe universe; he was a human farmer named Biff Beastman, who was recruited on a space-mission (because if there's one thing astronauts need, it's farm skills), which crash-landed on Eternia.
Once there, he mutated into a large red whatever, and joined Skeletor's gang.
We really hope this story is incorporated into the movie.
The Actor: With a future slate of movies that sound so bad-ass - Hunter Killer, Motor City, Thunder Run, Manhunt, Olympus Has Fallen - their names could easily double as He-Man episodes, Butler certainly has the testosterone the role requires.
All together now: "THIS. IS. SNAKE MOUNTAIN!"
Possible Problems: We're not sure if Butler has the ability to put across the weird subordinate side of the Beast Man character, who sometimes appeared to deliberately mess up missions, apparently because he got a strange kick from being told off by Skeletor.
We just don't see King Leonidas enjoying begging for forgiveness after being called a fool for the fiftieth time.