Goodbye to Juliette, hello to a new lean, mean, Black Claw fighting machine.

'Grimm' Season 5: A Leader Of The Wesen Uprising Revealed? NBC Announces New Character

Grimm resurrected the body of Nick Burkhardt's (David Giuntoli) former girlfriend, but it appears Hadrian's Wall had no use for the life that once inhabited the hexenbiest's form. Even though Eve (Bitsie Tulloch) has Juliette's memory, she is a far cry from the character we once knew.

"[She] is a weapon," Tulloch told TV Line. "She is very badass, and she's almost robotic... It's not so much that she's ruthless, it's that she's very calculated and all she's focused on is getting the job done."

'Grimm' Season 5: Another Major Death On The Way, David Giuntoli Teases Upcoming Demise

Despite the emotional complications Eve's debut poses for the Scooby Gang, Meisner's (Damien Puckler) creation could be key to turning the tide against the Wesen Uprising. Not only has Tulloch buffed up for the role, but Eve will have a handle on her hexenbiest powers in a way that Juliette never did.

"The new character is all about reining it in and utilizing this in the best possible way, not wasting an ounce of this incredible power that she has," Tulloch explained.

Find out more when Grimm returns to NBC on Jan. 29.