The Lotus and the Steel - S4-E13
Factual error: When Wolverine tears off the man's car door, he does so by putting his hands inside the spaces between the car door and the car's body. Those spaces are way too narrow for a person to fit their fingers inside. (00:03:25)
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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