Fans will finally be able to see Mark Harmon's grand return to the part of Leroy Jethro Gibbs in an ambitious crossover ...
Harmon will return in the flesh for a special crossover event on Tuesday, Nov. 11. For one night only, “NCIS” and “NCIS: ...
Origins to make a cameo appearance as Gibbs. Find out when to expect to see him make his second appearance on the series.