When the original Teenage Mutant Ninja Turtles Cartoon was cancelled, a lot of great characters disappeared from the different worlds of TMNT. Mirage, Image, The Next Mutation, 4Kids, and even the movie has not picked up these characters. As they laid in the past, seeming to be forgotten. Though when Viacom bought up the Teenage Mutant Ninja Turtle property back in 2009, none of us realized just how many of these lost characters would make their returns in one universe or another.