Rahzar

Chris Bradford is one of The Shredder's top henchman. As a human, he was a very skilled and quite well known martial artist, with his own line of dojos. By night, however, he operated (and still does) as a ninja under Shredder's employ. After coming face-to-face with Shredder's enemies (the Turtles) a few times, he came into contact with a substance known as mutagen, transforming him into a giant anthropomorphic dog, which Michelangelo dubbed "Dogpound".

Trivia

 * Dogpound will become Littlefoot's enemy in Littlefoot's Adventures of Teenage Mutant Ninja Turtles (2012 TV series).