Christina Rene Hendricks is an American actress. She is most known for her role as Joan Harris on the AMC television series Mad Men and as Saffron on the FOX series Firefly. She has been nominated for four Emmy Awards for her work on Mad Men. A poll of female readers taken by Esquire magazine named Hendricks "the sexiest woman in the world". In 2010, she was voted Best Looking American Woman by Esquire magazine.