Remember It - S1-E5
Trivia: In this episode we learn that Cyclops has been having a psychic affair with Madelyne Pryor, and Emma Frost, a.k.a the White Queen, was eavesdropping on one of their sessions. In the comics, it's actually Emma Frost that Cyclops began having the psychic affair with.
Bright Eyes - S1-E7
Trivia: Trask refers to Mr. Sinister's Sentinel attack on Genosha as a "mutant massacre." In the comics, there is a storyline called "Mutant Massacre," which saw Sinister tasking a group of mutants called the Marauders to kill the Morlocks. Years later, it was revealed that Gambit was hired to help sneak the Marauders into the Morlock tunnels, making him culpable in the act. This is contrary to Gambit helping to save some Morlocks from the Sentinel attack in this show.
Bright Eyes - S1-E7
Trivia: The title of this episode is likely a reference to Rogue calling Cable "Bright Eyes" in the season 2 episode "Time Fugitives, Part 2" of the original series.
Bright Eyes - S1-E7
Trivia: When Rogue is attacking the military compound, some of her moves are the same moves she performs in X-Men vs. Street Fighter. (00:04:34)
Trivia: Ross Marquand, who voices Professor X, previously portrayed Red Skull in Avengers: Infinity War and Avengers: Endgame. Cedric Smith, who voiced Professor X in the original animated series, also voiced Red Skull in one of the series' final episodes.