John Putch (born July 27, 1961) is an American actor, director and screenwriter. He is best known for his recurring role as Bob Morton on the 1980s sitcom One Day at a Time and as Sean Brody in the film Jaws 3-D. Putch was born in Chambersburg, Pennsylvania. He began his career as an actor at the age of five in summer theater company, The Totem Pole Playhouse, run by his father William H. Putch (1924–1983). He is the son of actress Jean Stapleton. After guest starring on his mother's series All in the Family, he was remembered by producer Norman Lear who cast him in a recurring role as Bob Morton on the sitcom One Day at a Time, appearing in fourteen episodes from 1976–1983. Putch's next notable role was in the film Jaws 3-D co-starring as Sean Brody the son of Roy Scheider's character, Martin Brody. For much of the 1980s into the 1990s he guest starred in a number of notable television series namely, Family Ties, The Fall Guy, The Love Boat, Hill Street Blues, Newhart, Star Trek: The Next Generation, 21 Jump Street, Seinfeld, Home Improvement as well as a starring role in the sitcom Room for Two.