Thomas Mark Harmon(born September 2, 1951) is an American actor, producer and director. He is known for playing the lead role ofLeroy Jethro GibbsonNCIS (2003-2021), a role which has earned him six nominations at thePeople's Choice Awardsincluding 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 ofNCISspecial agentLeroy Jethro Gibbswas introduced in a guest starring role in two episodes ofJAG, and continued on the spinoff show NCIS.He had a recurringrole as Secret Servicespecial agentSimon Donovanin a four-episode story arc inThe West Wingin 2002, for which he received anEmmy Award nomination.One of his first national TV appearances (other than as an athlete) was in a commercial forKellogg'sProduct 19cereal with his father,Tom Harmon, its longstanding TV spokesman. Thanks to his sister Kristin's in-laws,OzzieandHarriet Nelson, he landed his first job as an actor in an episode ofOzzie's Girls.He has been starring in television and film since the mid-1970s, after a career as a collegiate football player with the UCLA Bruins.He's been married to actress Pam Dawber since 1987 and they have 2 sons. His son, actor Sean Harmon, had a recurring role as a young Leeroy Jethro Gibbs on NCIS.
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