To celebrate the 20th anniversary of NCIS, the creative minds behind the show got together to reminisce about its early days. During their discussion, they revealed that Blake Lively's sister, Robyn Lively, was initially considered for a role on the show. However, they ultimately decided to give the role to Sasha Alexander. While Robyn didn't make the cut, she went on to have a successful career in films.

NCIS has been airing on CBS for two decades.