See How the 'NCIS: LA' Cast Has Changed Since Their First Seasons (PHOTOS)
Sonja Flemming/CBS; Bill Inoshita/CBS
Ron P. Jaffe/CBS
Chris O'Donnell as G. Callen in Season 1
Chris O'Donnell as Grisha Aleksandrovich Nikolaev Callen in Season 10
LL Cool J as Sam Hanna in Season 1
LL Cool J as Sam Hanna in Season 10
Ron P. Jaffe/CBS
Daniela Ruah as Kensi Blye in Season 1
Daniela Ruah as Kensi Blye in Season 10
Eric Christian Olsen as Marty Deeks in Season 1
Eric Christian Olsen as Marty Deeks in Season 10
Linda Hunt as Hetty Lange in Season 1
Linda Hunt as Hetty Lange in Season 10
Barrett Foa as Eric Beale in Season 1
Barrett Foa as Eric Beale in Season 10
Renée Felice Smith as Nell Jones in Season 2
Renée Felice Smith as Nell Jones in Season 10
The cast of NCIS: Los Angeles has changed a bit from its first season (and its introduction over on NCIS).
Characters have come and gone (RIP Dom), one of the agents has gotten to know quite a bit about his past (including his name), and, 10 years later, partners have even gotten married. But, for the most part, the team is the same.
She was once on the other side of a case.
Chris O'Donnell (Callen), LL Cool J (Sam), Daniela Ruah (Kensi), Linda Hunt (Hetty), Barrett Foa (Eric), and Eric Christian Olsen (Deeks) all appeared in Season 1 (though Olsen only guest starred in two episodes). Renée Felice Smith (Nell) joined in Season 2. And they're still on the show going into Season 11.
Click through the gallery above to see how they looked in their first seasons and in the most recent one.
From horrific crimes to emotional moments, here are the episodes we can't forget so easily.
NCIS: Los Angeles, Season 11 Premiere, Sunday, September 29, 9:30/8:30c, CBS