Mark Harmon is mainly known for his acting on NCIS. He has been portraying Agent "Gibbs" since 2003. 

He is married and has two children with his wife Pam Dawber.

Mark Harmon has showbusiness in his genes. His mother is actress Elyse Knox and his father was a professional football player, and Mark  probably inherited his talent from him as well: he successfully played football in college.

Mark Harmon: Movies and TV Shows 

In 1983, when he was in his early 30s, Mark Harmon was seen in the series "St. Elsewhere" as "Dr. Caldwell". After two seasons the actor left the series: he had asked the authors to write more appealing storylines for his character. That led to the authors cutting the characer from the series.

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'NCIS' Cast: Through The Years With The Actors

In 1986 the actor was awarded the title "Sexiest Man Alive" by the "People" magazine, so it's no wonder that the ladies have kept an eye on him. But Mark Harmon has been happy with Pam Dawber since 1987, they have been married for more than 30 years. They have two sons who were born in 1988 and 1992.

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Mark Harmon: 9 Facts About The 'NCIS' Legend

Trivia 

- Mark Harmon has been known to wear shirts that were sent to him by his fans

- Before he became an actor, Mark Harmon worked as a carpenter and a lifeguard.

- Young "Gibbs" on NCIS is played by his son Sean Harmon

- Bought his first car at age 13.