Raph is an alligator-snapping turtle mutant. He has three younger brothers, Donnie, Leo and Mikey, and he has an adoptive sister, April O'Neil. His father is Splinter Hamato. Raph is the largest of his family so, naturally, he's the most protective of his family and friends. On the outside, he may seem intimidating and frightening, but he's truly a softie and a gentle giant at heart. He constantly worries for the safety of his loved ones, which leads to constant anxiety. 