Mark Harmon’s ‘NCIS’ Legacy: His Costars Weigh In

"Phoenix" -- While on medical leave, Ducky orders the exhumation of a Navy commander’s body from a case closed 12 years ago. Meanwhile, the NCIS team investigates the recent death of a Marine. As both cases unfold, the team begins to question whether the two are somehow connected, on NCIS, Tuesday, Oct. 9 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Pictured left to right: David McCallum, Michael Weatherly, Sean Murray, Cote de Pablo and Mark Harmon Photo: Robert Voets/CBS © 2012 CBS Broadcasting Inc. All Rights Reserved. Content Exchange

For over 18 seasons, Mark Harmon played NCIS fearless leader, Leroy Jethro Gibbs, and even though he’s no longer appearing on-screen — he’s still an exec producer — his legacy continues.

Below, we’ve rounded up what his costars have said about Harmon, who exited four episodes into Season 19, over the years.

Michael Weatherly (Anthony DiNozzo)

“[Harmon is] a very rare person in this business because there’s no assistant, no entourage. Mark is largely just a very straight-forward, approachable, calm, assertive guy. He’s not a people pleaser.” (2009)

David McCallum (“Ducky” Mallard)

“There was always a certain degree of chaos [at one point during the series’ production], but it’s all gone now. Mark was instrumental in putting our house in order—I really thank him for that.” (2007)

Mark Harmon's 'NCIS' Exit: A Farewell to GibbsSee Also

Mark Harmon's 'NCIS' Exit: A Farewell to Gibbs

They don’t make ’em like Gibbs anymore. He cared about his team and doing what was right, no matter the cost. Here’s why we’ll miss having him around

Cote de Pablo (Ziva David)

“We were always trying to infuse [scenes] with different things, try something new. Mark has been here for years, and he’s still bringing it.” (2019)

Pam Dawber, Mark Harmon in NCIS

Cliff Lipson/CBS

Pam Dawber (Marcie Warren — and Mark’s real-life wife)

“Mark is for the best of everybody and everything. His ego does not extend. He just wants it all to work.” (2021)

NCIS, Mondays, 9/8c, CBS

This article originally ran on


Tags Content Exchange

Recommended for you