Thomas Mark Harmon (born September 2, 1951) is an American actor, producer and director. He is known for playing the lead role of Leroy Jethro Gibbs on NCIS (2003-2021), a role which has earned him six nominations at the People's Choice Awards including a win for Favorite TV Crime Drama Actor in 2017. Since 2008, he has also been a producer and executive producer of the show as well as its' spinoff series NCIS: New Orleans. His character of NCIS special agent Leroy Jethro Gibbs was introduced in a guest starring role in two episodes of JAG, and continued on the spinoff show NCIS.
Did you know that in 1993, he received an NCAA Silver Anniversary Award for outstanding career achievements following his college football days?
Mark Harmon's portrayal of Special Agent Leroy Jethro Gibbs on NCIS became one of television's most iconic characters. Leading the procedural drama for nearly two decades, his stoic yet deeply moral performance captivated millions, making NCIS a global phenomenon and one of the most-watched shows worldwide.
Harmon's enduring presence on NCIS solidified his status as a beloved television lead, creating a character that defined an era of crime dramas and influenced subsequent portrayals of law enforcement on screen.
Also known as: M. Harmon