Metalhead is the fifth Ninja Turtle of the Teenage Mutant Ninja Turtles franchise. His colored mask is yellow. "Metal Head" originally began as a superhero with the power to control his fluid metal hair like tentacles, as well as a member of the Justice Force from the Mirage comics (which later serves a basis for the 2003 incarnation as well.) In the 1987 cartoon series, a separate character named "Metalhead," a robotic turtle, was created by Kraang, which would later served as a basis for the 2012 character of the same name but with a different backstory.