So I’m a huge ass nerd and was looking at the voice actors that worked on Steven Universe. When I got the Amethyst, her voice actress really didn’t work on much. The online thing she seemed to be a part of for a long time was Barney. She played this character
"Your favourite character can’t be someone who’s barely on the show"
It just occurred to me why Greg had so much more personality in Rose’s Room than any other person. Greg is the one human Rose got to know more than any other person on Earth.