Season's greetings to one and all! I've checked my list and checked it twice. And trust me, I really do know who's been naughty or nice! 
- —Beast (dressed as Santa)
Appearing in "Hark How the Bells -- !"
Featured Characters:
- X-Men
Supporting Characters:
- Xavier Institute student body
- X-23 (Joins)
- New Mutants Squad
- Hellions Squad
- Corsairs Squad
- Alpha Squadron
- Several unidentified others
- Angel (Warren Worthington III)
- Husk (Paige Guthrie)
- Lila Cheney
- Cannonball (Sam Guthrie)
- Professor X (Charles Xavier)
- Magneto (Erik Magnus Lehnsherr)
- Jubilee (Jubilation Lee)
Other Characters:
- Danny Miller
- Jerry Miller
- Lara Miller
- Callie
- Several unnamed civillians
- Mutantes Sans Frontières (First appearance)
- Rogue (Anna Marie) (Mentioned)
- John Grey
- Elaine Grey
- Unnamed police officer
- X-Force (Mentioned in narration)
- New Mutants (Mentioned)
Races and Species:
Locations:
Items:
- X-Uniforms
- Wolverine's Suit
- Adamantium (on Wolverine and X-23's claws and body)
- Surge's Power Gauntlets Mark II
- Cybernetic Sunglasses
- Cyclops' Visor
Synopsis for "Hark How the Bells -- !"
The X-Men celebrate Christmas with a family whom they saved from a car accident earlier.