As NCIS: Los Angeles comes to an end after 14 seasons, it's worth looking at how the cast has changed over the years. The article focuses on those who have been series regulars for at least half the series, such as Chris O'Donnell, LL Cool J, Linda Hunt, Daniela Ruah, Barrett Foa, Eric Christian Olsen, and Renée Felice Smith. Gerald McRaney, Medalion Rahimi, and Caleb Castille also joined the cast in later seasons. Notably, Linda Hunt's character Hetty was last seen in Season 13, and Callen didn't have a first name until Season 7. The article provides a comparison of the cast's appearance in their first and last seasons on the show.
