Time Fugitives: Part 2 - S2-E8
Trivia: SPOILER FOR X-MEN '97: When Jean Grey scans Cable's mind, she sees an image of Cyclops, and seemingly herself as well, with her hair down (as opposed to her usually having it in a ponytail). Following the revelation in X-Men '97 that the Jean Grey seen in the first few episodes was actually a clone, producer Larry Houston revealed that he deliberately drew the Jean seen in Cable's mind to have her hair down, to suggest it was actually the clone who is Cable's real mother.
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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