to 1988, Dawber again had the title role in a television series, playing Samantha Russell in the CBS sitcom My Sister Sam, co-starring Rebecca Schaeffer. The series was a success in its first season, but it suffered a massive ratings drop in its second after moving to Saturday night. My Sister Sam was cancelled in April 1988, with half of the second season's episodes never shown on CBS, but eventually broadcast (along with all previous episodes) on USA Network. In July 1989, over a year after the show's cancellation, Schaeffer was shot and killed in front of her apartment in Los Angeles by Robert John Bardo, a man who had stalked her for three years. Dawber was reportedly "devastated" by her former co-star's death. Dawber and her other surviving My Sister Sam co-stars, Joel Brooks, David Naughton and Jenny O'Hara, all participated in a filmed public service announcement about gun violence prevention, and Dawber herself became a gun control advocate. With the birth of her second child, she largely retired from the entertainment industry for family reasons, acting sporadically during the 1990s. Film work Although mostly known for her television work, Dawber has starred in several films, including the comedy movie Stay Tuned (1992) with John Ritter and the period movie I'll Remember April (1999), alongside husband Mark Harmon. Return to television In 1997, Dawber starred in the short-lived sitcom Life... and Stuff on CBS. In 2014, she reunited with Robin Williams on his comedy series The Crazy Ones as a love interest of Williams's character. But the reunion failed to boost the show's ratings, and it was cancelled shortly afterwards. Williams, already suffering from Lewy body disease by this time, died by suicide later that year. Dawber is a national spokeswoman for Big Brothers Big Sisters of America. Garry K. Marshall, the film-and-television comedy writer-producer-director who enabled Dawber's professional breakthrough, died in 2016. That year, Dawber made a guest appearance on The Odd Couple in a tribute episode to Marshall, along with other Marshall alumni Ron Howard, Garry's sister Penny Marshall, Cindy Williams, Anson Williams, Don Most and Marion Ross. For the first time in her career, she appeared with her husband and fellow actor, Mark Harmon on CBS' NCIS in 2021 for seven episodes as '"seasoned investigative journalist" Marcie Warren. Personal life Dawber married actor Mark Harmon on March 21, 1987, in a private ceremony. They have two