Leonardo or Leo is one of the four main protagonists in Teenage Mutant Ninja Turtles and a member of the TMNT. He is the Karai's younger adoptive brother, and older brother of Raphael, Donatello, and Michelangelo, and the eldest Male child to Master Splinter. He is "The Leader" of the team. The Fearless Leader of the Group "My name's Leo. I've got 3 rowdy brothers who always give me a hard time. But I keep them in line... usually. Master Splinter picked me to lead because I eat, sleep and...