On March 24, 2026, NCIS aired its 500th episode, marking a significant milestone in the series’ long-running history. The show, created by Donald Bellisario, has become a staple of American television, focusing on the special agents of the Naval Criminal Investigative Service.
Originally led by Mark Harmon as Leroy Jethro Gibbs, NCIS has captivated audiences with its blend of drama, action, and humor. The series has garnered a viewership of 9.7 million in the 2023-24 season, although this number declined to 7.85 million in the following season.
Despite its popularity, NCIS has received only 3 Emmy nominations and has yet to secure a win. The show has also spawned 5 domestic spinoff series and 1 international spinoff, NCIS: Sydney, and has been licensed in over 200 international markets.
The legacy of NCIS is further highlighted by the contributions of cast members like David McCallum, who portrayed Dr. Donald ‘Ducky’ Mallard from the very first season until his passing in 2023. His character became a beloved figure among fans, showcasing the show’s ability to create memorable characters.
NCIS was originally spun off from the series JAG, which concluded in May 2005, and has since established itself as the highest-rated broadcast TV series for five consecutive years. This impressive achievement underscores the show’s resilience and ability to adapt to changing viewer preferences.
As the series continues to evolve, fans and observers are eager to see what the future holds for NCIS. With its rich history and dedicated fanbase, the show remains a significant player in the television landscape.
Details remain unconfirmed regarding the show’s plans for additional episodes or potential new spinoffs, but the excitement surrounding NCIS is palpable as it celebrates this remarkable milestone.