NCIS: Los Angeles was the first spin-off of the original NCIS franchise. Since its premiere in September 2009, the show has experienced several cast departures.

'NCIS: LA' preview: Eric Christian Olsen and boss tease big 'reveal' in two-part episode 'NCIS: LA' boss on the season finale and the explosion that could spell disaster for the team -- EXCLUSIVE ...

Debuting in Season 1 as a guest character, Deeks quickly became a fan favorite character because of his wit, humour, and action, and he was promoted to a recurring character in Se ...