Other mistake: Hawk gets a mohawk, but his hair was too short to style it like that.
Suggested correction: The mohawk was not a prop, but the actual hair of the actor they shaved off and mended together for him.
That is true, it was the actor's actual hair, but in the realm of the show, Eli's hair was not long enough to style that large of a mohawk out of it.
Black Blood - S1-E1
Other mistake: All the Greek name variants are used over the Latin ones - including even "Odysseus" over the more familiar "Ulysses" (who is the same person). However when the story of Actaeon comes up, it's suddenly the goddess "Diana" that he saw. But all the gods have their Greek names, so that should be "Artemis." (As indeed is used in episode 2). (00:39:35)
Other mistake: The shopkeeper hands Danny a Beretta 92fs/M9 handgun with a detached suppressor. To mount a suppressor to the muzzle end of the handgun the barrel needs to be threaded, and this one isn't. Sometimes barrels are threaded and when no suppressor is attached they are protected by a thread barrel cap to protect the threads from dings and bumps. There is no thread cap here either. (00:22:35)
Other mistake: After Starfire burns the guy in the room everything is burned but the picture, magically.
No Way Out - S3-E3
Other mistake: Higgins is asked if she can hack a security feed from an office. She replies that she can do it, but it will only be audio, no video. When she hacks it, is only video, no audio. (00:14:10 - 00:15:35)
Other mistake: The Seattle Police officer's badge states Seattle Police, but the patch on his jacket states Metropolitan Police. (01:15:00)
Other mistake: Dong-mae grabs a sword and slits the throat of a Japanese man, which causes blood to get splattered over both the left and right side of his face, as well as his neck and his chest. This would not be possible for multiple reasons. One, the slit was relatively small, so there wouldn't have been that much blood. Two, Dong-mae was standing too far away from him for the blood to travel that far. Three, Dong-mae had his head turned away from the man when he slit his throat. (00:43:19)
Other mistake: The opening scene shows a captive with a hood over his head being dragged barefoot along a long driveway by two men. His feet are dragging over the ground. He is then strung up by his hands, and when they show his feet, there is not a scratch on them.
Other mistake: Athena goes to her patrol car to turn on the lights so the chopper can see her and the victim, but as she approaches her cruiser, the lights are reflecting on the ground already, even though they weren't activated yet.