Grimm

Pilot - S1-E1

Character mistake: When Nick and Hank talk about going through the park, Hank says "come on, David." David is Nick's real name.

Tarantella - S1-E11

Character mistake: Hank's action as a cop towards the man on the boat makes no sense when going after Lena. He has to think the man he grabs is a potential victim. Obviously, he wants to keep him quiet, but there's no reason for Hank to hold his gun against an innocent man with his finger on (or near) the trigger.

Bishop73

Nameless - S2-E16

Factual error: The assassin sent to kill Captain Renard carries a French passport which lists his place of birth as "Marseilles". This is an old-fashioned spelling of the name now almost only seen in North America. The French spelling is and always has been "Marseille".

Necrothesp

More mistakes in Grimm

Nick Burkhardt: I guess you don't have to be a hexenbiest to be a witch.
Adalind Schade: You don't have to be a witch to work this kind of magic.

More quotes from Grimm