On the Town star Alysha Umphress plays coffee-pouring waitress Rhetta in Paper Mill Playhouse’s production of Pump Boys and Dinettes, running now through May 1. The Tony-nominated musical about the sisters who run the Double Cupp rest stop diner across a lonely North Carolina highway from a gas station also stars James Barry, Gabe Bowling, Julie Foldesi, Jason Ostrowski and Sam Weber.