Gregory Universe (Also referred to as 'Greg' or 'Mr. Universe') is a Progtagonist of Steven Universe Z. He appears from Chapter 1 and onward.
Greg is a funloving, but sensible adult of beach city. He was married to Rose Quartz. Steven is son who loves him very much. He was a once successful musician, under the stage name of "Mr. Universe", who now lives in a van and works at a Car Wash in Beach City.