NCIS Says Goodbye to Mark Harmon After 18 Seasons

Mark Harmon’s run on the CBS drama NCIS is over after 18 seasons. The actor’s character, Leroy Jethro Gibbs, retired to Alaska on Monday night’s episode. Harmon’s exit is not unexpected. When CBS picked up the show for a 19th season, Harmon said he would be cutting back his role on the show. Steven D.…

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