The Mark Harmon was born with the Hollywood and football in his veins: His mother, starred in dozens of the movies throughout the 1940s as well as Elyse Knox his father, Heisman Trophy winner was a Tom Harmon as well as played for the LA Rams.
After that very successful college football career at UCLA, and where Mark Harmon was the star quarterback, as well as a brief flirtation with the law school, the Harmon deciding to be provide acting a great shot.