By Denny Dyroff, Staff Writer, The Times Tommy Castro and The Painkillers Award-winning guitarist/vocalist Tommy Castro and his band The Painkillers will return to this area for a show on May 4 at the Sellersville Theater (24 West Temple Avenue, Sellersville, 215-257-5808, www.st94.com). “We’ve played the Sellersville Theatre a number of times and always had a lot of fun,” said Castro, during...