Gina L. Gershon (born June 10, 1962) is an American actress, singer, and author. She has had roles in the films Cocktail (1988), Showgirls (1995), Bound (1996), Face/Off (1997), The Insider (1999), Demonlover (2002), P.S. I Love You (2007), Five Minarets in New York (2010), Killer Joe (2011) and House of Versace (2013). She has also had supporting roles in FX's Rescue Me and HBO's How to Make It in America. She currently portrays the role of Gladys Jones on The CW teen drama series Riverdale.