https://www.hollywoodreporter.com/movies/movie-news/masters-universe-movie-nicholas-galitzine-1235910399/
Seems like an odd choice. I didn't care for his performance in The Idea of You and he doesn't look like he-man to me.
Who da fuck is dat guy?
Never heard of him (mind you, I'd never heard of Hemsworth before Thor, Cavill before Man of Steel, or Gadot before BvS).
Maybe he is playing Adam.
They'd probably do a version of the special effects from that first Captain America movie where Steve Rogers is digitally made to look shrimpy before he got the super-soldier serum.
He played a gay character so, NOPE. Disqualified.
But He-Man character does... kinda look a bit gay.