Mark Harmon to appear on 'Origins' in 'NCIS' crossover and Gibbs is 'no longer alone'
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Mark Harmon to appear on 'Origins' in 'NCIS' crossover and Gibbs is 'no longer alone'

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Mark Harmon is reprising his iconic role as Leroy Jethro Gibbs in the NCIS crossover event with the prequel series NCIS: Origins, signaling an exciting return for fans.

Why It Matters

The return of Mark Harmon as Leroy Jethro Gibbs underscores the enduring popularity of NCIS (TV series) and its ability to engage fans through innovative crossover (fiction) events, potentially boosting viewership for both shows.