10+ Great Photos of Mark Harmon
10+ Great Photos of Mark Harmon. Apr 27, 2017 · early life. Sep 28, 2021 · a new season of ncis has finally arrived, but this season is going to look a bit different than the previous ones as mark harmon, who plays leroy jethro gibbs, takes a step back from the show.while he won't be entirely absent this season, he will be noticeably absent from many of … Born on september 2, 1951, in burbank, california, actor thomas mark harmon faced some challenges growing up. Thomas mark harmon (born september 2, 1951) is an american actor, producer, director and former football quarterback. Initially a college football player, his role on st.