Born in 1931 in Fort Worth, Texas, he was the son of actress Mary Martin. He gained fame as J.R. Ewing on the TV series "Dallas," becoming an iconic villain in television history. Before "Dallas," he starred as Major Anthony Nelson in the sitcom "I Dream of Jeannie." His career spanned several decades, including roles in film and theater. Known for his distinctive voice and charismatic presence, he also directed and produced. He passed away in 2012, leaving a lasting legacy in entertainment.