The forthcoming 1,000th episode of the NCIS franchise will feature cameos from NCIS: Hawaii and NCIS: Los Angeles characters. As a spinoff to JAG, the procedural franchise has gained popularity since its launch in 2003 with the classic first installment, which currently stands as one of the longest-running series on television. Four more spinoffs were ordered, including NCIS: Los Angeles, NCIS: New Orleans, NCIS: Sydney, and NCIS: Hawai'i, all of which are about to hit 1,000 episodes collectively.
https://screenrant.com/ncis-1000th-episode-cast-vanessa-lachey-daniela-ruah-update/
