FBI BAU Supervisory Special Agent Emily Prentiss was played by Paget Brewster. Her mother used to be an ambassador in various Arab and Eastern European countries. Therefore, she is fluent in Arabic and can speak some Russian and Spanish as well. In season 4, episode Cold Comfort it is revealed that Emily Prentiss was born on October 12, making her a Libra. She joins the BAU in season 2, upon the departure of Agent Greenaway (Lola Glaudini).
Regular PVC (polyvinyl chloride) is a common, strong but lightweight plastic used in construction. It is made softer and more flexible by the addition of plasticizers. If no plasticizers are added, it is known as uPVC (unplasticized polyvinyl chloride), rigid PVC, or vinyl siding in the U.S.
Unplasticized poly(vinyl chloride) (uPVC) (Polyvinyl chloride) - uPVC, also known as rigid PVC, is extensively used in the building industry as a low-maintenance material, particularly in Ireland, the United Kingdom, in the United States and Canada. In the USA and Canada it is known as vinyl, or vinyl siding.