When Mark Harmon left NCIS in 2021 after 18 seasons,Gary Cole initially feared it would spell the end of the show. However, they ultimately found success with his character, who brought fresh dynamics to the team.
Harmon’s potential return has been teased, but his focus has shifted to his book release, delaying any comeback plans. Despite uncertainties, NCIS continues to thrive, showcasing the resilience of the long-running series.