Howler - (Pug) Howler is the inventor of the Pound Puppies squad. He's often inventing creations to solve the teams' problems. As his name implies, he often howls after the end of his sentences or at the end of an episode. Howler is generally not the spotlight puppy and has appeared less in season 2. Voiced by Robert Morse. He was originally voiced by Frank Welker in the Pound Puppies TV Special and only howls. Frank Welker would later reprise his role as Howler in Pound Puppies and the Legend of Big Paw.