In 2002, Clarkson was cast in a supporting role in Todd Haynes's period drama "Far from Heaven", opposite Julianne Moore and Dennis Quaid, playing the neighbor of a repressed housewife in the 1950s. The same year, she starred as Margaret White in the television film adaptation of Stephen King's "Carrie". Between 2002 and 2005, Clarkson had a guest-starring role on the HBO drama series "Six Feet Under", playing Sarah O'Connor, the artist sister of Ruth Fisher. For her portrayal, she won two Primetime Emmy Awards for Outstanding Guest Actress in a Drama Series, in 2002 and 2005, respectively.