Shredder

The Shredder (Oroku Saki) is a fictional character and supervillain in Mirage Comics. He is the leader of the Foot Clan and the archenemy of the Teenage Mutant Ninja Turtles. In every incarnation of the turtle team, the Shredder exists to challenge them, whether he be depicted as a human, mutant, alien, robot, zombie or demon.