Sam Hanna Should Become a Full-Time 'NCIS' Cast Member After His Season 22 Appearance

Almost 16 years after his debut in NCIS Season 6, Episode 22, LL Cool J's Sam Hanna returned in Season 22, Episode 18, and it wasn't part of a crossover. NCIS Season 6 Episodes 22 and 23 served as a two-part backdoor pilot for what would become NCIS: Los Angeles, starring LL Cool J, Chris O'Donnell, and Daniela Ruah. The first NCIS spinoff (though technically, NCIS was also a spinoff) ran for 14 seasons before being canceled. Besides its setting, what differentiated NCIS: LA from its flagship show was how it followed the NCIS Office of Special Projects (OSP) — an elite team with cutting-edge technology who were skilled at undercover assignments.