Making television history on April 15, 2024, the long-running crime drama NCIS unveiled its 1,000th episode on CBS. Aptly titled “A Thousand Yards,” the landmark episode comes full circle to address a crime that Leroy Jethro Gibbs (Mark Harmon) and his investigative team faced and failed to resolve in Season 1 in 2003. However, despite rounding up as many cast members as possible for the 1,000th episode, the glaring absence of at least three original characters is hard to overlook.