The main character of the Steven Universe cartoon series is Steven Quartz Universe. Steven is the son of Greg Universe and Rose Quartz. He is the only known hybrid between Gem and humans, the first Crystal Gem. Steven holds powers beyond normal humans or gems. He is devoted to protecting humanity and helping those who are in need. Steven is often described as having an optimistic, friendly, soft-hearted, and happy-to-help attitude. He is also a musical person and occasionally plays his ukulele. A fanart Steven Universe progress bar for YouTube with Steven Quartz Universe.