The NCIS Universe is constantly expanding, and fans have become captivated by the original cast and the spinoff actors’ romances, both on and off screen.
“NCIS” debuted in 2003 as a backdoor pilot for “JAG,” which ran from 1995 to 2005. “NCIS,” originally starring Mark Harmon as Leroy Jethro Gibbs, entered its 21st season in February 2024.
With the addition of spinoffs, including “NCIS: New Orleans,” “NCIS: Los Angeles,” “NCIS: Hawai’i,” and “NCIS: Sydney,” the NCIS franchise reached a milestone of 1,000 total episodes in April 2024.