Appearing in "The Traitor"
Featured Characters:
- Professor Charles Xavier (First appearance)
- X.S.E (First appearance)
- Bishop (First appearance)
- Malcolm (First appearance)
- Randall (First appearance)
- unnamed agents
Supporting Characters:
- John Grey (First appearance)
- Jean Grey (First appearance)
- FBI (First appearance)
- Fred Duncan (First appearance)
- unnamed agents
Villains:
- Trevor Fitzroy (First appearance)
Other Characters:
- X-Men (Illusion or holographic simulation)
- Iceman (Robert Drake) (Illusion or holographic simulation)
- Beast (Hank McCoy) (Illusion or holographic simulation)
- Cyclops (Scott Summers) (Illusion or holographic simulation)
- Marvel Girl (Jean Grey) (Illusion or holographic simulation)
- Angel (Warren Worthington III) (Illusion or holographic simulation)
- Colossus (Piotr Rasputin) (Illusion or holographic simulation)
- Nightcrawler (Kurt Wagner) (Illusion or holographic simulation)
- Storm (Ororo Munroe) (Illusion or holographic simulation)
- Wolverine (James Howlett) (Illusion or holographic simulation)
- Rogue (Anna Marie) (Illusion or holographic simulation)
- Gambit (Remy LeBeau) (Illusion or holographic simulation)
- Sentinels (Illusion or holographic simulation)
Locations:
- Earth-97799 (First appearance)
- Salem Center (First appearance)
- Xavier's School for Gifted Youngsters (First appearance)
- Salem Center (First appearance)
Items:
Vehicles:
Synopsis for "The Traitor"
Trevor Fitzroy goes back into the past to convince Professor Charles Xavier to not create the X-Men.