The Phoenix Saga (1): Sacrifice - S3-E3
Trivia: The orange space suits that the X-Men wear more closely resemble those worn by Russian cosmonauts than the black and white space suits worn by American astronauts. This is likely the result of the animation company in the Philippines being given notes to draw the characters in space suits, but in their research probably came across the Russian design, and not knowing any better or investigating further, went with that style.
Trivia: George Buza, who voiced Beast, never watched any episodes of this show until 2019, more than 20 years after the show ended. He finally decided to watch them at the insistence of Cal Dodd, who voiced Wolverine, because Buza was scheduled to be a guest at his first comic con, and decided he needed to have knowledge of the show, knowing that fans at conventions would be asking him questions about it.
Trivia: Despite the character's current massive popularity, Deadpool only made three unofficial cameos on this show, as the character was not nearly as popular in the early 90s. Once as a mental projection during a psychic session between Professor X and Sabretooth in the season 1 episode "Deadly Reunions"; as an illusion created by the dark side of Professor X's consciousness in the season 3 episode "The Phoenix Saga Part 2: The Dark Shroud"; and as form that Morph took during a confrontation with Wolverine in the season 2 episode "Whatever It Takes." Deadpool was set to make his first official appearance in a television series in the second season of "Wolverine and the X-Men", but that show was canceled before this ever came to fruition.
