Bandit is the name of Jonny's pet, a small white dog. He has been so named because his eyes have a black, mask-like coloration around them. This coloration is occasionally instrumental in foiling antagonists. He is unique among his fellow Hanna-Barbera dogs (such as Scooby-Doo, Huckleberry Hound, and Hong Kong Phooey), as he is a regular non-anthropomorhic dog. Though, he seems uncannily able to understand human speech and is capable of complex facial expressions. Don Messick provided Bandit's vocal effects, which were combined with an archived clip of an actual dog barking.
Creator Doug Wildey wanted to have a monkey as Jonny's pet, but he was overruled by Hanna-Barbera. Wildey has also said that Bandit was intended to be a bulldog. However, Bandit does not actually conform to any breed standard. His tail is too long for any bulldog variant. He is too small to be an English Bulldog, unless he remains a puppy throughout the series. His ears are floppy, so he does not conform to the breed standard for a French Bulldog. In many ways he resembles a pug, except that pugs have a distinctive curved tail.