Rebecca Sugar Creator, Executive Producer Zach Callison Steven Voice Estelle Garnet Voice Deedee Magno Pearl Voice Michaela Dietz Amethyst Voice Uzo Aduba Bismuth Guest Voice Lisa Hannigan Blue Diamond Guest Voice Patti LuPone Yellow Diamond Guest Voice Toks Olagundoye Nanefua, Cluster Guest Voice Jennifer Paz Lapis Lazuli, Cluster Guest Voice Shelby Rabara Peridot, Cluster Guest Voice Grace Rolek Connie Maheswaran Guest Voice Tom Scharpling Greg Universe Guest Voice Erica Luttrell Sapphire, Cluster Guest Voice Charlyne Yi Ruby, Cluster Guest Voice Curtis Lelash Executive Producer Brian A. Miller Executive Producer Jennifer Pelphrey Executive Producer Rob Sorcher Executive Producer Miki Brewster Writer Jeff Liu Writer Katie Mitroff Writer Paul Villeco Writer