The Shredder (シュレッダー Shureddā) is the archenemy of Splinter and the Ninja Turtles in the Teenage Mutant Ninja Turtles franchise and typically serves as the main antagonist of the franchise, often wielding tekkō-kagi and sharing the identity of Oroku Saki. The Shredder has been depicted as both human and non-human, male and female.