Mark Harmon Biography, Career, Age, Height, Affairs & Net Worth

Mark Harmon Biography

Mark Harmon was born on September 2, 1951, in Burbank, California, the U.S. He is an American actor. His full name is Thomas Mark Harmon. Similarly, he is well-recognized for his role as SSA Leroy Jethro Gibbs in the police procedural NCIS.

Age, Height, Weight & Measurements

As per his birth date, he is 69 years old as of 2021. He stands at a height of 6 feet 0 inches and weighs around 84 KG. Additionally, he has blue eyes and dark brown hair.

Relationship Status

The actor is in a marital relationship with actress Pam Dawber. The couple had started dating each other in 1986 and tied the knot on March 21, 1987. They also welcomed two sons together: Sean Thomas Harmon in April 1988 and Ty Christian Harmon in June 1992.


Regarding his family, his father’s name is Tom Harmon, an American football player whereas his mother’s name is Elyse Knox (née Elsie Lillian Kornbrath), an actress and model. In addition, he has two older sisters: late actress Kristin Nelson and actress Kelly Harmon.

Education, School/College University

Addressing his educational profile, he completed his high school education at Harvard-Westlake School. He also achieved a two-year associate degree at Pierce College and earned a B.A. in Communications from the University of California, Los Angeles.


Mark Harmon initially played American football in Pierce College and played as a quarterback for UCLA  Bruins Football.  He then started to make his career as a merchandise director and he made his acting debut in an episode of Ozzie’s Girls. Similarly, he appeared in TV series such as Police Woman, Delvecchio, Sam, and appeared in films such as Comes a Horseman (1978),  Beyond the Poseidon Adventure (1979). He appeared as Dwayne Thibodeaux in 240-Robert, Fielding Carlyle in Flamingo Road, and gained good recognition for his role as Dr. Robert Caldwell in the medical drama St. Elsewhere from 1983 to 1986.

Mark Harmon Biography
Mark Harmon Biography

He also portrayed Dr. Jack McNeil in the medical drama Chicago Hope from 1996 to 2000 and landed in the role of SSA Leroy Jethro Gibbs in the police procedural drama series NCIS in 2003. He has been portraying the role since then and is also working as a producer and executive producer since 2008. Likewise, his film works include, Let’s Get Harry (1986), After the Promise (1987), Worth Winning (1989), Cold Heaven (1991), Fear and Loathing in Las Vegas (1998), Crossfire Trail (2001), Chasing Liberty (2004), among others.

Mark Harmon’s Social Media

He is not available on any social media.

Mark Harmon’s Rumors and Controversy/Scandal

There are no known controversies about Mark Harmon.

Net Worth

What is the earning of Mark Harmon? How much is his net worth and How rich is he in 2021? He has accumulated a huge amount of net worth of $ 100 million, which he has earned from his successful acting, producing, and directing career.


  • Full Name: Thomas Mark Harmon
  • Profession: Actor, Producer, Voice Actor, Former Football Quarterback
  • Age: 69
  • Date of Birth:  September 2, 1951
  • Birth Place: Burbank, California, U.S
  • Zodiac Sign: Virgo
  • Nationality: American
  • Height: 6 feet 0 inches
  • Weight: 84 KG
  • Eye Color: Blue
  • Hair Color: Dark Brown
  • School: Harvard-Westlake School
  • College/University: Pierce College, University of California, Los Angeles
  • Father: Tom Harmon
  • Mother: Elyse Knox (née Elsie Lillian Kornbrath)
  • Sibling: Kristin Nelson (Older Sister, Deceased), Kelly Harmon (Older Sister)
  • Net Worth 2021: $ 100 million
  • Source of Income: Acting, Producing, Directing