Christina Rene Hendricks (born May 3, 1975) is an American actress. She is most known for her role as Joan Harris on the AMCtelevision series Mad Men and as Saffron on the FOX series Firefly. She has been nominated for four Emmy Awards for her work onMad Men. A poll of female readers taken by Esquire magazine named Hendricks “the sexiest woman in the world”.[1] In 2010, she was voted Best Looking