News 'NCIS' Renewed for Season 19 With Mark Harmon to Return Glad to hear this about Mark. He may do cameos rather than being an active participant. He is 70 years old after all. He may do what David McAllen has been doing with Ducky. David is 88. Been a fan since The Man from U.N.C.L.E.
Glad to hear this about Mark. He may do cameos rather than being an active participant. He is 70 years old after all. He may do what David McAllen has been doing with Ducky. David is 88. Been a fan since The Man from U.N.C.L.E.