Origin

Oroku Saki was a harsh embittered youth who sought to avenge the death of his older Oroku Nagi who was killed by Hamato Yoshi in a feud for a woman Tang Shen. Saki enrolled in Foot Clan and soon rose up the ranks becoming their most skilled warrior, he was chosen to lead the American branch of the Foot in New York.  The eighteen year old Saki siezed the opportunity for revenge and in New York he adopted the identity of the Shredder and murdered both Yoshi and Shen leaving only Yoshi's pet rat whose cage had broken during the struggle.

Fifteen years later and Saki had built up the New York Foot into a formidable criminal empire involved in drug smuggling, arms running and assassination. While arranging protention for a business a sai blade came through the window with a note attached from the student of Hamato Yoshi challenging Saki to a duel to the death. Arriving the address in the note as the Shredder he saw that his opponents were four giant talking turtles and had his Foot Ninja battle them. The turtles managed to beat the Foot Ninja but not without some injuries, Shredder took on the turtles themselves. The four battled the Shredder individualy and together not faring well until the turtle Leonardo scored a lucky hot by plunging his sword through the Shredder's torso. Asking the turtle to "finish it", the turtle said that Saki could regain his honour by taking his own life. Taking out a thermite grenade the Shredder swore if he must take his own life he would take the turtles lives with him. Quickly, Donatello used his Bo Staff to knock Shredder and the grenade off the rooftop, the resulting explosion tore the Shredder to pieces.

Return of the Shredder

entered the fray and battled the Shredder directly. The building caught on fire, and upon hearing sirens of approaching fire trucks the Shredder ordered his ninja to retreat but he promised his enemies that the war was far from over

A year on after the exile in Northampton the turtles returned to New York to face the Foot Clan and Shredder. The turtles managed to infiltrate the Foot Head Quarters with Leonardo managing to make it to the Shredder's inner sanctum. Waiting for him there the Shredder told the turtle of how  he had returned to life. The Foot having a vast knowledge of both science and magic had worms, that adapt their own cells to whatever they feed upon. Feeding on the pieces of Oroku Saki they began to bond together to form a colony  which repaired Saki's body resurrecting him from the dead. Leonardo fought Shredder in a fierce battle that spilled out onto the roof.  As the building started fall apart (due to the other turtles battling the Foot) the two lunged towards each other with Leonardo using his sword to decapitate the Shredder as the building exploded.

Worms of Madness

Current Shredder

Shredder in other media

1987 Animated series