Fan Casting "Oroku Saki" in TMNT: Rise From The Sewers

Master Splinter tells his sons a story about an old friend of his from his childhood, an adopted brother named Oroku Saki. One day, the boys fell in love with the same woman, and when Splinter was married to and had a baby with this woman, Oroku killed the woman and stole his baby out of hatred, and now rules over the Japanese criminal underworld under the title of "The Shredder".