Butch is an agent of D.O.G.S. and mentored Lou. He is one of the main protagonists of Cats and Dogs series. He is the current mentor of Diggs. Butch is a grumpy, serious Anatolian Shepherd who just wants to retire. Old and, like I said before, grumpy, Butch wasn't very happy when Lou told him he'd be mentoring Diggs, but the wise dog had enough smarts to show respect for the head of D.O.G.S. but knew he was the boss of Diggs. Butch doubted Diggs for all his mistakes, from blowing up a used car dealership to letting the MacDougall twins get away. However, he no longer doubted Diggs after Diggs proved himself a true agent by defeating Kitty Galore and blowing up the satellite broadcasting the "Call of the Wild".