CBS announced that Mark Harmon will reprise his role as Leroy Jethro Gibbs in an upcoming guest appearance on 'NCIS' and ...
The upcoming NCIS and NCIS: Origins crossover brings Mark Harmon back onscreen as Leroy Jethro Gibbs, though his presence ...
NCIS alum Mark Harmon is set to return to the long-running CBS series for a special crossover event between the procedural ...
'NCIS' executive producer Charles Floyd Johnson admitted Harmon, who played Agent Leroy Jethro Gibbs, "stayed on longer" than the actor intended Stephanie Wenger is a TV Writer/Reporter at PEOPLE. She ...
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