Gizmo was Billy's pet and one of a kind. He is a Gremlin, but because Billy respected the 2 rules (no water or feeding after midnight) the creature stayed good, cute and friendly. Gizmo learned to talk a little bit by the end of their adventures and was the hero vs the army of evil Gremlins. Howie Mandel voiced the cute little fuzzy guy. The concept and look of Gizmo came to light a fusion of different little dog breeds for his fur and arms/legs. he is by far the most loved star in the movie and one of the most memorable cue creatures of the 80s movies.