<Tr> <Td_colspan="2"> ← Previous Season 8 </Td> </Tr> <Tr> <Td_colspan="2"> List of NCIS: Los Angeles episodes </Td> </Tr> <P> The ninth season of NCIS: Los Angeles premiered on October 1, 2017 on CBS for the 2017--18 television season . The season is due to contain 24 episodes . </P> <Ul> <Li> Chris O'Donnell as Grisha "G ." Callen, NCIS Senior Special Agent (SSA) of the Office of Special Projects (O.S.P.) in Los Angeles </Li> <Li> Daniela Ruah as Kensi Blye, NCIS Special Agent </Li> <Li> Eric Christian Olsen as Marty Deeks, L.A.P.D. Liaison Detective </Li> <Li> Barrett Foa as Eric Beale, NCIS Technical Operator </Li> <Li> Renee Felice Smith as Nell Jones, NCIS Special Agent and Intelligence Analyst </Li> <Li> Nia Long as Shay Mosley, NCIS Executive Assistant Director for Pacific Operations (EADPAC) </Li> <Li> Linda Hunt as Henrietta Lange, NCIS Supervisory Special Agent and Operations Manager </Li> <Li> LL Cool J as Sam Hanna, NCIS Special Agent, second in command </Li> </Ul>

When does season 9 of ncis los angeles start