Sasha Roiz, Bitsie Tulloch as Sean Renard and Juliette Silverton in NBC's Grimm (RTR2WD14)
Actors Sasha Roiz (L) and Bitsie Tulloch arrive at the NBC Universal after party following the 69th annual Golden Globe Awards in Beverly Hills, California January 15, 2012. Reuters/Jason Redmond

There could only be a few “Grimm” Season 6 spoilers from lead actor David Giuntoli at this stage, as the NBC fantasy drama has just aired its Season 5 finale on May 20, or merely two weeks ago. Still, Giuntoli has a few things to say about his character Nick Burkhardt, as well as the return of Bitsie Tulloch’s Juliette and the complications with Claire Coffee’s Adalind.

Spoiler alert: This update contains major spoilers from the “Grimm” Season 5 finale and “Grimm” Season 6.

In the ending scene of the fifth season finale of “Grimm,” Conrad Bonaparte (Shaun Toub), a supposedly very powerful Zauberbiest, dies in the hands of Portland Mayor Sean Renard (Sasha Roiz), just when Bonaparte was about to off Nick. In effect, Renard saves Nick.

‘Grimm’ Season 5 Finale: Diana saves Nick, Renard rises to power in sixth season

The real Zauberbiest killer, however, is Diana (Hannah Loyd), the little Hexenbiest. How would Renard play it from there? Would he pretend to be a hero after their brawl in the precinct, or would he come clean about her daughter? Giuntoli has recently given a clue.

“Renard is going to be the big bad in Season 6. We’ll focus more on him and his rise to power and what that means,” Giuntoli has told TV Insider, adding this is “word on the street.”

Sasha Roiz seems to suggest the same thing. His character Renard is going to stay a Black Claw operative because that’s where he would be powerful.

“I think he’s one of those poor souls who will never be satisfied and will always be looking for another opportunity,” Roiz told TV Line.

‘Grimm’ Season 6: Bitsie Tulloch’s Juliette was dead, and now she’s back!

In the same interview, Giuntoli said Nick has some decisions to make now that it seems Juliette has returned. The magic healing stick seems to have revived Juliette, and she is feeling “a lot.” Bitsie Tulloch showed brilliant acting in revealing Juliette, showing the difference between the Hexenbiest assassin and the woman that Nick loved for years. What would Nick do now?

“Nick is now in love with a Hexenbiest [Claire Coffee’s Adalind Schade] and they have a child [baby Kelly]. Nick’s also gotta be thinking, ‘Does Juliette know she killed my mother?’” Giuntoli mused.

RELATED NEWS: 'Grimm' Season 5, Episode 17 Promo Video: Juliette ‘returns’ for Nick, Adalind warned (Review)

Between Renard leading the Black Claw and Juliette coming back in his life, Nick has a lot to process when “Grimm” Season 6 returns later this year on NBC. Giuntoli has taken up another role, though. He is going to direct an episode next season after five years of observing the directors he has worked with on the show.

There are 13 confirmed episodes in “Grimm” Season 6, but Giuntoli said there could be some additional episode orders. What he knows is that if the sixth season will be the last, the show’s writers would be able to give the fans some closure.

“Grimm” Season 6 is expected to return to NBC later this year. It premiered in October in the last three seasons, as well as its first season.