When MarkHarmon departed NCIS after 19 seasons in 2021, it felt like the final time that fans would see his legendary character Leroy Jethro Gibbs grace their television screens ever again.
The actor played Leroy Jethro Gibbs on 'NCIS' from 2003 to 2021 MarkHarmon will be on hand to help introduce Leroy Jethro Gibbs' backstory. The actor, 73, who portrayed Gibbs on NCIS from 2003 to ...
NCIS: Origins introduces viewers to a young Leroy Jethro Gibbs as he starts his career at NCIS. The series uncovers key events in his life. It includes personal tragedies and professional challenges.
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