Fans should expect Nick (David Giuntoli) to cause a lot of damage on Grimm now that he has become a zombie.
Giuntoli spoke with TV Guide Magazine about the repercussions that are sure to occur in the wake of Nick's zombification in the season 2 finale.
"Nick will do a lot of damage and he'll be forever changed as result of this. Giuntoli said, laughing. "There's going to be a lot of zombie residue! It's like the Royal Families want him to recruit and control whole armies of Wesen."
He added that Zombie Nick won't be dragging his feet slowly like they do on "that other show," referring to The Walking Dead. "He's wicked fast and all super-rage. He's total destruction!"
Nick's friends and colleagues will do whatever means possible to try and stop him from causing too much damage.
"They know how these zombies behave and they know how Grimms behave and that the combination could be insane," Giuntoli said. "They'll use whatever means they can to either capture him or get him out of this state before he creates too much terror and panic."
The actor said that there would be more things of interest in the upcoming season of Grimm than Zombie Nick. For one, there will be a wedding between Monroe (Silas Weir Mitchell) and Rosalee (Bree Turner).
Other storylines in the mix this year include sewer alligators and a story about three sister mermaids that is "grotesque and unsavory." Giuntoli said that these mermaids are not of the typical "Disneyfied" variety.
Season 3 of Grimm premieres Friday, Oct. 25 at 9 p.m. on NBC.
Watch this sneak peak at season 3 here: