John Mahoney (20 June 1940 – 4 February 2018) was a British actor, known for playing Martin "Marty" Crane, the retired police officer, father of Kelsey Grammer's Dr. Frasier Crane, in the American TV series Frasier (NBC, 1993–2004). Description above from the Wikipedia article John Mahoney, licensed under CC-BY-SA, full list of contributors on Wikipedia.