Alysha Umphress, who tore up the 2014 revival of On the Town as Hildy, the single-minded taxi driver, co-stars as the coffee-pouring waitress Rhetta in Paper Mill Playhouse’s upcoming production of the 1981 musical Pump Boys and Dinettes. 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. Performances begin April 6.