Leonardo is the oldest and leader of the teenage mutant ninja turtles. He is usually the most mature but he can also make a few jokes then and there. He is the one that makes the strategies which is why he’s the leader. He is the size and has the body of a normal red eared slider turtle  just with extended limbs and digits which give him the ability to stand but he can’t walk on his hind legs. His choice of weapon is two tiny katana to match size, used to kill, another reason why he is leader.