Featured Characters:

• X-Men
  • Cyclops (Scott Summers)
  • Wolverine (Logan)
  • Beast (Dr. Hank McCoy)
  • Rogue
  • Jubilee (Jubilation Lee)
  • Gambit (Remy LeBeau)
  • Magneto (Erik Magnus Lehnsherr)
  • Bishop (Leaves)
  • Morph (Impersonates Spiral and Magik/Darkchylde)
  • Jean Grey (Rejoins)

Supporting Characters:

• Goblin Queen (Madelyne Pryor) (First appearance as Madelyne Pryor) (Leaves X-Men)
• Nathan Summers
• Roberto Da Costa

Antagonists:

• Mr. Sinister (Nathaniel Essex)
• Sentinels (Illusion or holographic simulation)

Other Characters:

• X-Men
  • Professor X (Charles Xavier) (Photo)
  • Iceman (Bobby Drake) (Photo)
  • Angel (Warren Worthington III) (Photo)
• Phoenix Force (Only in flashback)
• John Grey (Only in flashback)
• Elaine Grey (Only in flashback)
• Annie Richardson (First appearance) (Only in flashback) (Death)
• Nina Da Costa (Illusion or holographic simulation)
• Shard (Illusion or holographic simulation)
• Christopher Summers (Mentioned)
• Forge (Future) (Mentioned)
• Storm (Ororo Munroe)
• Forge

Races and Species:

• Mutants
• Humans
• Sentinels (Illusion or holographic simulation)
• Demons

Locations:

• Earth-92131
  • Earth
    • United States of America
      • New York
        • Westchester County
          • X-Mansion
      • Texas
        • Dallas
          • Tequila Mockingbird Bar (First appearance)
  • Hell
  • Astral Plane
• Earth-121893 (Referenced)

Items:

• Ruby-Quartz Sunglasses
• X-Uniforms
  • Cyclops' Visor
  • Wolverine's Suit
• Soulsword
• Techno-Organic Virus
• Bishop's Temporal Transceiver

Events:

• Inferno

When a visitor arrives at the mansion with a dangerous secret that threatens Cyclops and Jean's relationship, the team is propelled into a tragic confrontation with an immortal mad scientist.

The intro title card sequence has been updated again: the order now being Magneto, Cyclops, Jean Grey, Wolverine, Morph, Rogue, Beast, Gambit, Jubilee, and Bishop.

• Inferno (Event)
• "Descent"