A group of magical guardians called the Crystal Gems teach a boy to use his special abilities as a human-Gem hybrid to help them protect humanity. Tom Scharpling, Michaela Dietz, Zach Callison, Deedee Magno, Estelle, Zach Callison, Estelle, Michaela Dietz, Deedee Magno, Tom Scharpling, Rebecca Sugar Added on Netflix 2023-11-21. Youtube Trailer