Robert Hughes M.D. is a fictional character on the American soap opera As the World Turns. Bob was played by actor Don Hastings from October 1960 until the series' final episode on September 17, 2010. Actors Bobby Alford and Ronnie Welch played Bob previously between 1956 and 1960. He was briefly married to Lisa Miller (with whom he had son Tom) during the 1960s; he and Lisa remain close friends. He is currently married to Kim Hughes, with whom he had a daughter, Sabrina, and a son, Chris. Bob was also the last character seen on the show, leaving his office at the end of the final episode with the words "Good night," which mirrored the first words spoken on the show, "Good morning, dear," spoken by Helen Wagner as she portrayed Bob's mother, Nancy Hughes.