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the Show is 6 years old and has been on for 6 seasons
the show is actually 9 years because it will start its 9th season this year
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Earn +20 ptsQ: How old is mark harmon NCIS?
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How old is Mark Harmon?
Mark Harmon is 65 years old (birthdate: September 2, 1951).
What is Mark harmon's favourite food?
Actor Mark Harmon's favorite food is unknown. Mark has been acting for over 30 years and most known for his role in NCIS.
How many kids does Mark Harmon have?
Mark Harmon has 2 children
How tall is John Mark Harmon?
Mark Harmon is 6ft tall.
Is mark Harmon related to Richard Harmon?
no they are not related
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