Mad Dog is one of Don Karnage's Air Pirates. His partner is Dump Truck.He is an antrophomorphic dog.He flies in hybride airplane. Mad Dog is usually the brain and Dump Truck is a muscle when it comes to doing dirty work for Karnage.Karnage usually beats Mad Dog when he is angry. Mad Dog is something of a coward and he will do what ever his boss tells him to do, like in Polly Wants A Treasure when he tortured Kit Cloudkicker, to get Baloo and Ignatz the Parot attention. He is a mean, arrogant, determined, defiant, obnoxious, grouchy, menacing, annoying, dishonest, dramatic, obedient and gluttonous dog.
His voice actor is Charlie Adler.