Splinter is a character from the "Teenage Mutant Ninja Turtles" movies. He was the pet rat of Hamato Yoshi, until Yoshi was killed by the Shredder. Splinter was later mutated due to exposure to Mutagen Ooze. He took the Teenage Mutant Ninja Turtles in their care as his father and taught them everything he knows about the code of bushido. He is wise, kind and loyal.