In Teenage Mutant Ninja Turtles: Amazing Adventures, Leonardo or Leo is a mutant turtle, and one of the four ninja sons adopted and trained by Hamato Yoshi (a.k.a. Splinter), along with his brothers Donatello, Michelangelo and Raphael. This version of Leonardo is branched off from his previous version in the 2012 TV series. His history before the events of Amazing Adventures is the same as that of his animated version.