Odd case - "Ben 10" refers to 3 US cartoons, Ben 10 and its sequel series Ben 10 Alien Force and Ultimate Alien. The latter two shows, which are what most of the fandom is based on, have two definitely chromatic chars (Julie Yamamoto and Alan Albright) and a few others who are indeterminate. Question is whether it counts as having a chromatic creator - while the creators of the original show were white, the head writer & show runner for Alien Force/Ultimate Alien is the awesome Dwayne McDuffie.