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Mark Harmon

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Mark Harmon
Birth name Thomas Mark Harmon
Born September 2, 1951 in Burbank, California, USA
Notable Roles Special Agent Gibbs in NCIS
Dr. Jack McNeil in Chicago Hope
Dr. Robert Caldwell in St. Elsewhere
Notable Episodes
Awards star on the Hollywood Walk of Fame
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Mark Harmon is a prolific actor, having appeared in numerous television shows and movies since his first few character roles for Police Woman, Adam-12 and Emergency! in the mid-1970s. Most recently, Harmon has appeared as Special Agent Gibbs on the Belisarius Productions show NCIS, as well as appearing in the recent Disney remake of the classic movie Freaky Friday. In addition to these roles, he made four appearances on the hit show The West Wing as Agent Simon Donovan and received an Emmy nomination for Outstanding Guest Actor in a Drama Series.


Starring Roles

Series Role Year(s) Season(s)
Sam Mike Breen 1978 1
240-Robert Dwayne Thibideaux 1979–1980 1
Flamingo Road Fielding Carlyle 1981–1982 1 2
St. Elsewhere Robert Caldwell 1983–1986 2 3 4
Reasonable Doubts Dicky Cobb 1991–1993 1 2
Charlie Grace Charlie Grace 1995–1996 1
Chicago Hope Jack McNeil 1996–2000 3 4 5 6
NCIS Leroy Jethro Gibbs 2003–  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Guest Starring Roles

Series Role Episode Airdate
Police Woman Paul Donin 1x17 - No Place to Hide January 31, 1975
Emergency! Officer Dave Gordon 4x22 - 905-Wild March 1, 1975
Laverne & Shirley Victor 1x09 - Dating Slump March 30, 1976
The Love Boat Doug Bradbury 3x01/02 - Alaska Wedding Cruise: Buddy & Portia's Story / Julie's Story / Carol & Doug's Story / Peter & Alicia's Story September 15, 1979
Saturday Night Live Himself 12x18 - Mark Harmon/Suzanne Vega May 9, 1987
The West Wing Secret Service Agent Simon Donovan 3x18 - Enemies Foreign and Domestic May 1, 2002
The West Wing Secret Service Agent Simon Donovan 3x19 - The Black Vera Wang May 8, 2002
The West Wing Secret Service Agent Simon Donovan 3x20 - We Killed Yamamoto May 15, 2002
The West Wing Secret Service Agent Simon Donovan 3x21 - Posse Comitatus May 22, 2002
JAG Special Agent Gibbs 8x20 - Ice Queen (1) April 22, 2003
JAG Special Agent Gibbs 8x21 - Meltdown (2) April 29, 2003

Specials and Made-for-TV Movies

Title Role Airdate Series/Banner
For All Time Charles Lattimer October 18, 2000

Talk, News and Game Show Appearances


Episode Director

Series Episode Airdate Credit
Chicago Hope 5x20 - From Here to Maternity April 14, 1999
Chicago Hope 6x21 - Everybody's Special at Chicago Hope April 27, 2000
Boston Public 2x09 - Chapter Thirty-One January 14, 2002
Boston Public 2x17 - Chapter Thirty-Nine March 18, 2002


Series Produced

Series Year(s) Credit Season(s)
NCIS 2011 –  Executive Producer

Memorable Moments

Awards and Accolades

Primetime Emmy Awards

(2 Nominations)

Golden Globe Awards

(4 Nominations)