Why Did Mark Harmon Leave “NCIS”? All About His Departure From the Hit CBS Series 4 Years Ago

Harmon has remained connected to the NCIS universe through the prequel series NCIS: Origins, which debuted in October 2024.
Us Weekly

How Did Mark Harmon Return to ‘NCIS’ for ‘Origins’ Crossover After His Exit as Gibbs?

Harmon’s return to the NCIS universe comes years after his exit.

Austin Stowell, Wilmer Valderrama, more preview 'intense' “NCIS” crossover with “NCIS: Origins”: 'There will be tears'

One haunting unresolved case unites two teams across 30 years in a first-ever crossover that sees the returns of Mark Harmon ...
Soap Central

What happened to Breena on NCIS? Michelle Pierce's exit revisited

The popular CBS military procedural show NCIS premiered in 2003 and has since been one of the beloved shows on the network.

Kyle Schmid Says Mark Harmon’s ‘NCIS: Origins’ Return for Crossover ‘Elevates’ the Show

The upcoming NCIS and NCIS: Origins crossover brings Mark Harmon back onscreen as Leroy Jethro Gibbs, though his presence ...

‘NCIS’ & ‘Origins’ Crossover: Connecting Timelines, Learning a Gibbs Rule & More

Executive producers from both shows preview the event, explain the challenges of crafting such a unique crossover, and share the themes it allowed them to explore.