When does T.U.F.F. Puppy return?

The Turbo Undercover Fighting Force (T.U.F.F.) headquarters (HQ) is an organization that protects Petropolis from crime. Dudley Puppy (voiced by Jerry Trainor) is a white mixed-breed dog who wears a black t-shirt. Other characters include The Chief, The Chameleon, Bird Brain, Larry, Ollie, Francisco, Zippy, Owl, Bad Dog, and Skunk.