Herbert "The Chief" Dumbrowski is a main character of T.U.F.F. Puppy. He was once T.U.F.F.'s number one agent during his youth. But as he became the chief, he succumbed to various age-related detriments, including a bionic foot, artificial hip, false teeth, and short-term memory loss. Although he is small, he still retains combat skills, as well as super strength for a flea, considering he is able to "judo-flip" criminals as big as gorillas.