Splinter
Fictional character
Splinter, often referred to as Master Splinter or Sensei by his students/sons, is a fictional character from Teenage Mutant Ninja Turtles comics and all related media. A mutant rat, he is the grave and stoic sage of the Turtles, their ninjutsu and... Wikipedia
Foes: Super Shredder, Tengu Shredder, and Cyber Shredder
Species: Brown rat and Mutants in fiction
Weight: 90 lbs.
Abilities: Mastery of ninjutsu; High intellect; Keen sense of smell; Stealth mastery
Children: Leonardo, Raphael, Donatello, and Michelangelo (adoptive sons); Miwa/Karai (daughter; 2012 series)