When Kevin Eastman and Peter Laird created the Ninja Turtles, they named them after the famous artist. This is known through all of the different medias of Teenage Mutant Ninja Turtles. And through the years there’s only one name that changed in the way they spell it. From issue 1 of Mirage TMNT Volume 1, Michelangelo’s name was spelled Michaelangelo. There was an a right after the h. Though in 2000, there was a change to that spelling. This was only mentioned once in character, in an area only the online fans know of.