Sprocket is a character from the television show Fraggle Rock. He's a dog who lives with his owner Doc in Doc's Workshop. Sprocket appeared in almost every episode. Sprocket has seen Fraggles but Doc does not meet them until the last episodes.
Some episodes of Fraggle Rock Sprocket has had a very large part such as Sprocket's Big Adventure, where Sprocket gets stuck in the Fraggle hole and the Fraggles help get him out. Sprocket also appeared in all of the International Versions of the Show (where he had a various usually local performers).