What’s next for NCIS LA Season 5? After five episodes, the NCIS spin-off gave its viewers a tumultuous start of the season. The only question now is what will happen next?

On its 100th episode entitled “Reznikov, N.”, the team (G. Callen, Kensi, Deeks, and Sam) investigated a kidnapping case, which eventually gave a brief insight on Callen’s past, particularly his father [See Pics].

Pillar Entertainment revealed via Twitter on October 24 that Callen’s Dad will be played by Anthony Fanelli.

HUGE congrats 2 our LA client,Anthony Fanelli 4r booking a recurring role on NCIS: Los Angeles.He plays Chris O'Donnell's dad in flashbacks!

— Pillar Entertainment (@pillarent) October 24, 2013

In Season 5 of NCIS LA, Fanelli will have a recurring role of Callen’s father in flashbacks.

While there’s still no official report on how Fanelli’s character will be portrayed, it’s quite certain will be having more of Callen’s past this season.

On the other hand, it looks like Deeks (played by Eric Christian Olsen) has a new addiction! In an upcoming episode, viewers will see Deeks entering a Malibu center for his “Sex Addiction.”

While this is just an undercover mission, Executive Producer Shane Brennan shares this will be a fun episode for Deeks to work with other people.

Knowing Deeks, he will probably try to charm his way in again to keep his cover.

But, the more interesting question here is how this upcoming episode will affect his relationship with Kensi.

Earlier episodes revealed a huge growth for Deeks and Kensi’s (played by Daniela Ruah) relationship. If Deeks meet a hot and sexy patient in the group, will Kensi get jealous?

No matter what happens, one thing is for sure – “Densi” will be making a major progress this Season 5 as assured by Executive Producer Shane Brennan.

As for Dani’s real-life pregnancy, Brennan also assured viewers it will not affect the dynamics between the two.

 “We won't be addressing that. Dani's pregnant. Kensi's not. Through the magic of television hopefully no one will notice she's pregnant," told Brennan according to TV Fanatic.

"There's a series of steps throughout this season that crank up the relationship further and further and further. There's a pretty powerful revelation towards the end of the season that forces them to take stock," the executive producer added.