Mark Harmon
Leroy Jethro Gibbs (voice)
In 1991, years prior to the events of "NCIS," a young Leroy Jethro Gibbs starts his career as a newly minted special agent at the fledgling NCIS Camp Pendleton office where he forges his place on a gritty, ragtag team led by NCIS legend Mike Franks.
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