From Wikipedia, the free encyclopedia. Robert Fuller (born July 29, 1933) is an American former television Western actor and current rancher. In his five decades of television, he's best known for starring roles on the popular 1960s western series Laramie as Jess Harper, and Wagon Train as Cooper Smith, as well as his work for his lead role, Dr. Kelly Brackett, in the popular 1970s medical drama Emergency!, opposite his best friends Julie London and her husband Bobby Troup.  Description above ...