Fans will finally be able to see Mark Harmon's grand return to the part of Leroy Jethro Gibbs in an ambitious crossover ...
Mark Harmon, who spent 18 seasons on "NCIS," is reprising his role as special agent Leroy Jethro Gibbs for a crossover event.
PRIMETIMER on MSN
Complete cast breakdown of 9-1-1: Nashville season 1: Who plays who & where you’ve seen them before
Nashville season 1, from Chris O’Donnell’s steadfast fire captain to LeAnn Rimes’ scheming singer. Get to know the stars bringing Music City’s first responders to life.
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