Character mistake: When Carly expresses her relief to Beast that he is fine after he was attacked by the anti-mutant group, he incredulously asks her how she knew he was a mutant. Aside from the fact that the Friends of Humanity were openly calling him a mutant in her presence when they accosted him, Carly was shown touching Beast's hand earlier in the episode. Despite being blind, she would also know that Beast's fur-covered hands would be quite different from the hands of regular people she might have touched. Given these facts, Beast should not have been surprised that Carly knew he was a mutant. (00:03:25 - 00:08:40)
Continuity mistake: The metal tubes on Wolverine's gloves appear and disappear when he is talking to Jean Grey. (00:04:19 - 00:05:07)
Continuity mistake: When Wolverine is infiltrating the Friends of Humanity's headquarters, and later when he is talking to Graydon Creed in their auditorium, some shots show him wearing a gold wristband on his left wrist, and other times he is not wearing one. (00:06:20 - 00:14:30)
Continuity mistake: The Friends of Humanity members have patches on the backs of their shirts/vests/overalls that say FOH, but when the two members are checking on Wolverine in the alley, their patches read HOH. (00:07:00)
Continuity mistake: The word-plate on the eye clinic director's office door is silver when first shown. A few moments later, it is the same color as the door, and the lettering isn't as bold. (00:07:45)
Continuity mistake: When Beast first enters Carly's room to tell her he won't be at her operation, she is not wearing any headphones. When the shot changes, she is suddenly wearing some. (00:08:15)
Continuity mistake: When Beast is looking through the photo album, it reads "Family Photos" on the front cover. When he tosses it to the floor, the "Family Photos" writing has now moved to the back cover. (00:09:35)
Other mistake: When Jean is bringing a tray of food to Beast, the liquid in the glass is not oscillating. (00:09:38)
Continuity mistake: When Beast throws the book at the mirror, his reflection remains stationary while he himself is walking towards the mirror. (00:09:50)
Continuity mistake: Just before the mirror shatters, Beast's reflection shows him burying his face in his left hand. When the shot changes, it is his right hand. (00:09:55)
Continuity mistake: When Beast first enters Carly's room at the end of her procedure, there is no window on the door. Later when Carly's father enters, the door now has a window on it. (00:11:05 - 00:12:05)
Continuity mistake: When Dr. Bohlson is starting to remove the bandages around Carly's eyes, he is not wearing a stethoscope. After Beast interrupts the procedure and walks up to Carly, Bohlson is suddenly wearing a stethoscope. (00:11:05)
Revealing mistake: When Beast is entering Carly's room to see if her procedure was a success, he passes through the door frame. (00:11:08)
Continuity mistake: When Dr. Bohlson is cutting through the bandages around Carly's eyes, there is an audible tear, but when he stops cutting and steps away, the bandages are completely intact. (00:11:10)
Plot hole: After Beast and Dr. Bohlson leave Carly's room, they briefly chat in the hallway just outside the door for less than 15 seconds in real time, and then discover that in that brief time frame, the Friends of Humanity abducted Carly from her second-story room via the window, managed to incapacitate the nurse, security guard and Carly's father, toss around furniture and spray paint "For Humanity" on one of the walls, all without any of the victims making a sound or the Friends of Humanity making a sound themselves. The Friends of Humanity aren't ninjas, rather they are shown to be somewhat bumbling, so there's no way they could have done all that as quickly and quietly as shown. (00:12:30)
Continuity mistake: When Dr. Bohlson follows Beast out of Carly's room, he closes the door behind him. A couple of shots later, the door is open. The door is then closed again when Bohlson is reentering the room. (00:12:30)
Audio problem: When Beast is saying "If anything happens to her," his mouth is wide open for the last three words. (00:13:15)
Continuity mistake: When Cyclops says to Beast "We're ready to help," his left hand comes into view, and you can see it is bare. Moments later, he is now wearing a glove on that hand. (00:14:55)
Continuity mistake: When Graydon Creed is interrogating Carly, their positions in the room are different depending on the shot. When first shown, she is tied to a chair, with a bare wall a few feet to her left. When Wolverine enters the room, he enters through a door that is now on the wall on Carly's left that was previously bare. When Wolverine tells Creed to let her go, they are suddenly right next to a wall on Carly's right. Then when Creed is pointing the gun at Wolverine and for the remainder of the scene, Carly is suddenly facing the door Wolverine came through. (00:15:35 - 00:17:50)
Continuity mistake: When Carly is telling Graydon Creed to leave her alone, her head is tilted towards her right shoulder. When the shot changes, she is facing straight. (00:15:57)
Answer: Chris Potter, the original Gambit voice actor, did indeed quit the role in the 4th season. His last episode was The Phalanx Covenant Part 1 so it seems reasonable that Fox would limit the use of the character even though it was recast. It doesn't appear that Potter left the role due to animosity, he stated in an interview that he wished to play Gambit in the first live action X-Men film.
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