Savage Land, Strange Heart (2) - S3-E9
Continuity mistake: When the fully regenerated Garokk emerges from the mountain, his loincloth is an orange-brown color. A couple of shots later, it is now grayish-brown. (00:17:14)
Savage Land, Strange Heart (1) - S3-E8
Continuity mistake: When Lykos departed the Savage Land in Magneto's aircraft, it only had one seat. Later in the episode after Sauron has abducted Storm, the aircraft now has two seats. (00:04:05 - 00:10:07)
Savage Land, Strange Heart (1) - S3-E8
Continuity mistake: When the X-Men are flying into the Savage Land, Beast is reading a book with a blank spine. After Wolverine tells Jubilee about Garokk, Beast's book suddenly has writing on the spine. (00:13:08)
Savage Land, Strange Heart (1) - S3-E8
Continuity mistake: When Lykos transforming into Kazar, his wings tear out of his jacket sleeves, and are incorrectly colored the same brown as the jacket. A couple of shots later, his wings have disappeared and don't form again until his entire jacket is torn off. (00:07:13)
Savage Land, Strange Heart (2) - S3-E9
Continuity mistake: When the giant monolith of Garokk forms out of the mountain, the markings around its eyes are red. In subsequent shots, the markings are now the same gray color as the rest of the monolith. (00:13:18)
Savage Land, Strange Heart (1) - S3-E8
Continuity mistake: When Beast catches Rogue after Sauron tosses her, her black headband briefly turns white. (00:17:52)
Savage Land, Strange Heart (1) - S3-E8
Continuity mistake: When Lykos is walking by the museum, the lettering on the banner above the doors is spread out almost the entire width. When the shot changes, the lettering is now more compacted. (00:05:56)
Savage Land, Strange Heart (1) - S3-E8
Continuity mistake: When Karl Lykos is climbing into the aircraft, the color of the lumbar section of the seat changes to a darker shade of yellow between shots. (00:04:06)
Savage Land, Strange Heart (2) - S3-E9
Continuity mistake: When Storm is explaining her behavior to Rogue, the communication devices from her chest are missing, owing to her ripping them off a few scenes earlier. Moments later when Rogue is draping a blanket over Storm, the communication devices are suddenly back in place. (00:20:12)
Savage Land, Strange Heart (2) - S3-E9
Continuity mistake: When Wolverine is calling out to Rogue and Storm, his claws are retracted into his arms. When the shot changes, his claws are extended. His hands also go from being cupped around his mouth to being instantly down at his sides. (00:19:15)
Savage Land, Strange Heart (2) - S3-E9
Continuity mistake: When Beast is holding up Storm's arm and saying "Crisis contained," his white fingernails have been colored the same blue as his fur. (00:09:25)
Savage Land, Strange Heart (2) - S3-E9
Continuity mistake: When Wolverine places his hand on Storm's head, her eyes are open. When the shot changes, her eyes are closed. When the shot changes again, her eyes are open again. (00:08:25)
Savage Land, Strange Heart (2) - S3-E9
Continuity mistake: When Rogue is walking towards Beast after he has sedated Storm, there is a hut directly to her right. When the shot changes, the hut has disappeared. (00:07:41)
Savage Land, Strange Heart (1) - S3-E8
Continuity mistake: When Beast is quoting Shakespeare, his map is brown with yellow edges. When the shot changes, the entire map is brown. (00:06:26)
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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