Cara Buono is an American actress whose career started in the late 1980s. The following decade, she got more roles on the big screen where she appeared in the films Gladiator, Waterland, and Kicking and Screaming. On television, she usually made guest appearances on some TV shows. In the 2000s, she first became known for her role as Grace Foster in Third Watch. She next appeared as Kelli Moltisanti in The Sopranos. Following this, she starred as Sheriff Anna Turner in the show The Dead Zone. In 2010, she portrayed Faye Miller in the acclaimed series Mad Men. For her role here, she was nominated for a Primetime Emmy Outstanding Guest Actress in a Drama Series. After some more guest appearances, she landed the role of Martine Rousseau in Person of Interest. In 2016, she began playing the role of Karen Wheeler in the Netflix series Stranger Things.