NCIS Universe: A Look at the Actors’ Dating Histories and Spin-Offs

The NCIS Universe is ever-growing, captivating fans with the romances of both the original cast and spinoff actors, both on-screen and off.

NCIS premiered in 2003 as a backdoor pilot for JAG, which aired from 1995 to 2005. The show, which initially featured Mark Harmon as Leroy Jethro Gibbs, began its 22nd season in October 2024.

Before the start of that season — and due to the introduction of spinoffs like NCIS: New Orleans, NCIS: Los Angeles, NCIS: Hawai’i, and NCIS: Sydney — the NCIS franchise celebrated reaching 1,000 episodes in April 2024. The prequel series NCIS: Origins debuted that October, further enriching its legacy.

While fans eagerly support their beloved characters in their quests for love — we’re looking at you, Jessica Knight and Jimmy Palmer — the real-life relationships of the actors have also drawn in audiences over the years.

Scroll down to discover the marital status of NCIS stars from the main series and its numerous spinoffs, including who’s married, who’s single, and everything in between: