On Tuesday, November 20, at 8/7c, Olympic Gold Medalist McKayla Maroney is stopping by HART OF DIXIE, playing Tonya, one of Rose’s best friends. McKayla will be reprising her role in a January 2013 episode, as well! Check out a first look at McKayla’s acting chops and hear what series star Rachel Bilson has to say about her in this behind the scenes video.