NCIS: L.A. season 12 is underway and building anticipation for each and every new episode. We're now seven episodes in and viewers have been treated to exciting cases, new faces, and romantic drama. Now, add to the list the comeback of an NCIS: L.A. fan-favourite.

Warning: Season 12 spoilers follow!

NCIS: L.A. season 12: Fan-favourite makes a comeback

CIA Officer "Vostanik Sabatino" (Erik Palladino) is a fan-favourite on NCIS: L.A. and he's returning to the series in the new episode "Love Kills." Officer "Sabatino" is looking for "Pietra Rey" (Mariela Garriga), who viewers already know from season 9, and needs the assistance of the NCIS: L.A. team.

"Sabatino" is investigating the murder of a man who was going to expose a forgery scandal. "Pietra" is suspected to have been involved and must be found. The new episode airs on Jan. 10 on CBS.

"Sabatino" actor Erik Palladino is a veteran of NCIS: L.A. dating back to season 3 in 2012. Most recently, he also acted in The Marvelous Mrs. Maisel and Watchmen. What's more, he sings in the rock band Hearing Red—one multitalented star. Now fans can look forward to seeing Officer "Sabatino" again.

NCIS: Los Angeles: "Deeks" action coming in new episode

"Deeks" (Eric Christian Olsen) will also be at the centre of the new episode. After losing his job as a Liaison Officer, there was finally clarity about his career. "Hetty" (Linda Hunt) put things in motion for a new job as a real NCIS agent. "Deeks" has arrived at FLETC and now it's time to train. Will he be able to manage the training?

Fans also await closure on what will happen with "Callen" (Chris O'Donnell) and "Anna" (Bar Paly), after engagement plans were thwarted in last week's episode. Watch the new episode this Sunday, Jan. 10.

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