Hellboy creator Mike Mignola had a huge hand in developing the look of Steven Universe. The Cartoon Network showrunner talked about the iconic cartoonist helping with the main character’s design in a new documentary, Mike Mignola: Drawing Monsters. It turns out Mignola had the idea to use the star imagery on Steven’s shirt. But, the legendary comic artist also introduced the diamond motif across the series as well. Sugar was massively thankful for his input early in the process. Back then, she didn’t even know if she was going to get a chance to bring Steven to series at Cartoon Network. Her vision became a reality to the tune of a wildly successful show, a spinoff, and a movie. So, everything kind of panned out. But, who knows what would have happened if she didn’t seek out some timely advice from the Hellboy creator.