When NBC's Grimm returns for its spring premiere Friday at 9/8c, Nick (David Giuntoli) has just discovered that his girlfriend Juliette (Bitsie Tulloch) has been seeing his boss Capt. Renard (Sasha Roiz) on the sly. And even though Nick is a Grimm, Renard is half Hexenbiest, which makes for quite a matchup in this world. While Grimms are known for trouncing Wesen, fans of the show know that Renard is known for his rage — shirtless rage that is.
Check out this exclusive video of the cast discussing the origins of shirtless rage, hashtags and the evolution of Nick's unique Grimm skill. Continue reading for more scoop on Grimm's return: