Season 13 saw several additions to the main cast: Academy Award winner George Kennedy as Carter McKay, who buys Ray's ranch after Ray and Jenna move to Switzerland, and eventually becomes the head of Ewing Oil rival WestStar; Cathy Podewell as the young, naïve, Cally Harper, who becomes J.R.'s second wife; Sasha Mitchell as J.R.'s illegitimate, first born, son, James Beaumont; Kimberly Foster as April's devious sister Michelle Stevens, who marries both James and Cliff Barnes; and finally Lesley-Anne Down as PR woman Stephanie Rogers. While Kennedy and Podewell had appeared as guest stars throughout season 12, Mitchell, Foster and Down's characters were all new to the series when they joined the regular cast.