Dennis is a town in Barnstable County, Massachusetts which is coextensive with Cape Cod. Currently, Dennis is a popular seaside resort town, notable for its stately colonial mansions along the northern Cape Cod Bay coastline, and its picturesque, warm water beaches along the southern Nantucket Sound.
The Cape Playhouse, in northern Dennis, is the oldest summer theatre in the United States, and among the most well-known. The actress Bette Davis was 'discovered' while working there as an usher.