Today Mark Harmon is 70. Today is also the birthday of Keanu Reeves, Salma Hayek, Katt Williams, Terry Bradshaw, Mary Jo Catlett, Eugenio Derbez, Robert Shapiro, Keith Allen, Harvey Levin, and the late Hal Ashby, Chuck McCann, Mel Stuart, Marge Champion, and Sue Mengers. J.R.R. Tolkien died 48 years ago in 1973 at age 81. Troy Donahue died twenty years ago in 2001 at age 65. Bob Denver died sixteen years ago in 2005 at age 70.