January Kristen Jones (born January 5, 1978) is an American actress and model. She is best known for playing Betty Draper in the television series Mad Men (2007–15), as well as for notable roles in American Wedding (2003), We are Marshall (2006), and in the 2011 films Unknown, Seeking Justice, and X-Men: First Class. Since 2015, Jones has been starring as Melissa Chartres in the Fox series The Last Man on Earth
For her work on Mad Men she received two Golden Globe nominations and one Emmy nomination.Jones was born in South Dakota,the daughter of Karen, who manages a Scheels sporting goods store, and Marvin Jones, a coach, gym teacher, and fitness directorShe is of Czech, Danish, English, Welsh, and German descent. She is named after January Wayne, a character in Jacqueline Susann’s Once Is Not Enough. She has two sisters, Jacey and Jina. She spent much of her childhood in Hecla, South Dakota, where her family moved in 1979 .Jones has had supporting roles in Anger Management (2003), Love Actually, and Dirty Dancing: Havana Nights. In 2005, she appeared as a U.S. border guard’s wife in the film The Three Burials of Melquiades Estrada, directed by and starring Tommy Lee Jones. In We Are Marshall (2006), she played the role of Carol Dawson, wife of American football coach William “Red” Dawson.
She played the lead female role in the movie Love’s Enduring Promise as a pioneer family’s oldest child. Her character falls in love with a mysterious man who saves her father’s life.
She also appeared in the AMC original television drama series Mad Men for seven seasons as young suburban housewife and mother Betty Draper Francis. She received two Golden Globe nominations and one Emmy nomination for her performances.
Jones is also known for her role as Cadence Flaherty, the love interest of both Steve Stifler and Paul Finch in the 2003 comedy film American Wedding, the third installment of the American Pie film series