Mark Harmon to Make Guest Appearance as Gibbs
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Harmon will return in the flesh for a special crossover event on Tuesday, Nov. 11. For one night only, “NCIS” and “NCIS: ...
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Mark Harmon Speaks Out as CBS Shocks Fans With Major 'NCIS' News
NCIS star Mark Harmon famously portrayed Leroy Jethro Gibbs for 19 seasons. Mark left the CBS drama in 2021, and fans have ...
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