Leroy Gibbs
Leroy Jethro Gibbs 3
Name: Leroy Jethro Gibbs
Status: Alive
Age: 63
Date of birth: November 21, 1954
Birthplace: Stillwater, Pennsylvania,
United States of America
Nationality: Flag of the United States American
Affiliation: US NCIS logo NCIS
US Marine Corps logo USMC
Profession: NCIS: Special Agent
Rank: USMC: US Marine Corps Gunnery Sergeant Gunnery Sergeant
Father: Jackson Gibbs (d. 2014)
Marital status: Widowed/Divorced
Spouse(s): Wife:
Shannon Gibbs (d. 1991)
Diane Sterling (d. 2015)
Rebecca Chase
Stephanie Flynn
Significant other(s): Ex-lovers:
Jenny Shepard (d. 2008)
Hollis Mann
Samantha Ryan
Children: with Shannon Gibbs:
Kelly Gibbs (d. 1991)
Played by: Mark Harmon
Sean Harmon (younger)
Seasons: JAG: 8
NCIS: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
NCIS: New Orleans: 1, 2, 3
NCIS: Hidden Crimes
First episode: JAG:
"Ice Queen"
"Yankee White"
NCIS: New Orleans:
"Breaking Brig"
NCIS: Hidden Crimes:
"In the Line of Duty"
Last episode: JAG:
Appears in: 3 series, 19 seasons, 1+ episodes, 2 games

Leroy Jethro Gibbs (born November 21, 1954) is an NCIS Special Agent and the agent in charge of the Major Case Response Team at the Navy Yard in Washington, D.C..


Early lifeEdit

Characters metEdit

Behind the ScenesEdit

Leroy Jethro Gibbs was portrayed by Mark Harmon in Season 8 of JAG, all seasons of NCIS and Seasons 1 and 2 of NCIS: New Orleans.



  • Rule 1: Never let suspects stay together.
  • Rule 2: Always wear gloves at a crime scene.
  • Rule 3: Don't believe what you're told. Double check.
  • Rule 20: Always look under.