Diggs is an Alsatian Police Dog and the main protagonist of Cats and Dogs The Revenge of Kitty Galore. He was initially thrown off the police force because of his disobedience. He became a laughing stock to the other dogs. However he was recruited to join D.O.G H.Q. in order to defeat Kitty Galore by Butch, an Anatolian Shepherd Dog.
He continues to disobey orders and he got thrown off of D.O.G. He's a complete idiot
It is reveal that he never trust anyone but himself.
He begins to learn the errors of his ways.
After Kitty Galore is defeated he goes back to live with Shane Larson, his handler in the police force.