Surfside 6 is an ABC television series that aired from 1960 to 1962. The show centered on a Miami Beach detective agency set on a houseboat. It featured Troy Donahue as Sandy Winfield II, Van Williams as Kenny Madison, and Lee Patterson as Dave Thorne. Diane McBain co-starred as socialite Daphne Dutton, whose yacht was berthed next to their houseboat, and Margarita Sierra also had a supporting role as Cha Cha O'Brien.