John Mahoney, Dead at 77: John Mahoney has died. The 77-year-old passed away on Sunday while in hospice care in Chicago. He was best known for playing the father on “Frasier” from 1993 to 2004. He won a SAG Award and got two Emmy and two Golden Globe nominations for the role. Later, he had a recurring role as Betty White’s love interest on “Hot in Cleveland.” Mahoney never married and had no children.