YOU'RE NOT ON NICKTOONS ANYMORE! Some TMNT stuff really isn't for little kids. Concept art of "The Unknown."Concept art of "The Unknown."Add a photo to this gallery Retrieved from "https://turtlepedia.fandom.com/wiki/Seymour_Gutz_(IDW)/Gallery?oldid=509329" Categories: Character galleries IDW galleries Community content is available under CC-BY-SA unless otherwise noted.