Rattles is another member of the Tough Customers, and is one of the antagonists. He is 9 years old, Rattles has been a Tough Customer member since the first season. He is a grey dog. He wears a backwards baseball hat, black leather jacket, green T-shirt, blue jeans and high tops. He speaks with a Northern New Jersey accent. It was revealed in "Arthur Unraveled" that he has an affinity for knitting.