‘NCIS’ Star Mark Harmon to Return as Gibbs in ‘NCIS: Origins’ During Veterans Day Crossover

NCIS' star Mark Harmon is reprising the role of Leroy Jethro Gibbs in an upcoming Veteran's day crossover episode of 'NCIS: ...

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

Harmon, 74, will make a rare guest appearance on "Origins" as Gibbs, the character he played for 18 "NCIS" seasons, during the first crossover event between the two CBS dramas on Veteran's Day, Nov.