'Grimm' season 6 spoilers: cast hinted big revelations up ahead

The first look for the sixth and final season of "Grimm" is finally released.

In the trailer, the producers and the cast teased that the series will begin exactly where it left off in the season 5 finale, when Renard (Sasha Roiz) and Adalind's (Claire Coffee) daughter Diana (Hannah R. Loyd) took control of her father's body to kill Bonaparte (Shaun Toub) to save Nick's (David Giuntoli) life.

According to executive producer David Greenwalt, "Grimm" season 6 will answer some of the very large questions that were left hanging at the end of the previous season, including some that has yet to be dealt with in the supernatural police procedural series.

Roiz, on the other hand, revealed that the fight between Nick and his character Renard will intensify in the upcoming episodes. According to the actor, both of the characters are very determined to kill each other.

The rest of the cast were also talking about how fortunate they were to become a part of the show. Silas Weir Mitchell claimed that the people behind the show has a "natural, lucky affinity with each other," while Giuntoli revealed that everyone in the set loves each other, and they treat each one as family. He also included that they will continue being in other's lives even if the show has been discontinued.

Meanwhile, Jacqueline Toboni hinted that there will be a lot of surprises in "Grimm" season 6 when asked during an interview with Oregon Live. She also claimed that the series will have a highly emotional ending.

"I just read the finale," Toboni stated. "Get your tissues ready, because I was bawling, crying, We definitely lay it all out on the line. The payoff is really quite something."

NBC will air the premiere episode of "Grimm" season 6 on Friday, Jan. 6, 2017.