This is a post by EphemeristX which he updates weekly at the Unstable Molecule/Uncannyxnet Forum and the credit for the list is all his.
Part 1
Active Characters
Abeni (new) - Marvel Voices: Legacy #1
Abigail (new) - New Mutants #20
Abigail Brand - Empyre: Aftermath Avengers #1
Absalom - Excalibur #12
Ace Spencer - The Marvels #1
Adam X - X-Factor #5
Aero - X-Men #7
Allison Double - Excalibur #22
Amelia Voght - S.W.O.R.D. #1
Amino Fetus (new) - Hellions #6
Angel Salvadore - New Mutants #3
Anole - HoX #6
Apocalypse - HoX #5
Arakko - X-Men #16
Archangel - HoX #3
Arclight - Hellions #1
Armor - HoX #1
Artie Maddicks = Fantastic Four #26
Aurora - X-Factor #2
Avalanche - The Last Annihilation: Wiccan and Hulkling #1
Axel Bohusk - New Mutants #3
Banshee - HoX #1
Beak - New Mutants #3
Beast - HoX #4
Beef - Hellions #18
Bei the Blood Moon - X of Swords: Stasis #1
Bevatron - Way of X #4
Bishop - Marauders #1
Black Knight (Jackie Chopra) - Black Knight: Curse of the Ebony Blade #1
Black Tom - HoX #5
Bling! - Fallen Angels #6
Blink - S.W.O.R.D. #1
Bliss - Marauders #19
Blob - X-Force #2
Blockbuster - Hellions #1
Bombshell - Champions #1
Boom Boom - X-Force #1
Bouncer (Renata da Lima) - Marauders Annual #1
Brimstone Love - Marauders Annual #1
Briquette - Children of the Atom #2
Brutha Nature (new) - New Mutants #16
Broo - X-Men #8
Brute - Marauders #19
Burner - S.W.O.R.D. #3
Cable (Adult) - Cable #11
Cable (Teen) - X-Men #1
Callisto - Marauders #7
Cam Long (new) - New Mutants #15
Candra - Excalibur #12
Cannonball - New Mutants #2
Captain Britain (Betsy Braddock) - Excalibur #1
Carver (Morlock) - Marauders Annual #1
Cassandra Nova - Marauders v2 #1
Castor (new) - Cable #10
Catseye - Hellions #1
Dr. Cecelia Reyes - X-Men #1
Chamber - New Mutants #1
Christian Frost - Marauders #5
Christopher O'Leary (new) - New Mutants #16
Colossus - X-Force #1
Cosmar (new) - New Mutants #9
Crule - Excalibur #12
Curse (new) - Cable #1
Cybelle - Hellions #1
Cyclops - HoX #1
Cypher - HoX #1
D-Cel (new) - Juggernaut #1
Daken - X-Force #9
Darkstar - Avengers #46
Darwin - X-Men #5
Dazzler - HoX #6
Dead Girl - Strange Academy #8
Death - X of Swords: Creation #1
Destiny - Inferno #1
DJ - X-Factor #5
Doctor Nemesis - Empyre - Avengers #1
Domino - X-Force #1
Doop - X of Swords: Destruction #1
Dragoness - New Mutants #9
Dust - New Mutants #14
Egg (Goldballs) - HoX #5
Erg - Hellions #1
Elixir - HoX #5
Emma Frost - HoX #3
Empath - Hellions #1
Emplate - HoX #5
Exodus - HoX #5
Explodey Boy (new - undead) - Empyre - X-Men #1
Explodey Boy (new) - Empyre: X-Men #4
Eye-Boy - Giant-Size X-Men: Nightcrawler #1
Fabian Cortez - S.W.O.R.D. #1
Famine - X of Swords: Creation #1
Fantomex - Giant-Size X-Men: Fantomex #1
Fauna (new) - HoX #1
Fenris (Andrea and Andreas von Strucker) - Marauders #8
Feral - Women of Marvel #1
Fever Pitch - Marauders v2 #1
Fiery Calderak (new) - S.W.O.R.D. #8
Firestar - X-Men Vote (2022)
Fish (new) - Marauders #4
Flambe - Children of the Atom #1
Forearm - New Mutants #9
Forge - X-Force #2
Frenzy - S.W.O.R.D. #1
Galura (new) - Marvel Voices: Pride #1
Gambit - Excalibur #1
Gateway - Marauders #2
Genesis (Annihilation) - X of Swords: Stasis #1
Gentle - Black Panther v8 #3
Gerhart - Way of X #3
Gideon - Excalibur #12
Gimmick (new) - Children of the Atom #1
Ginny Guzman - X-Factor #3
Glob Herman - Excalibur #1
Gorgeous George - X-Force #9
Gorgon - HoX #5
Greycrow (Scalphunter) - Hellions #1
Gwenpool - X-Factor #3
Halcyon (new) - Iron Man #4 (confirmed)/Iron Man #1 (first appearance)
Harold Leland - Marauders #26
Harpoon - Hellions #1
Havok - HoX #6
Healer - X-Force #1
Hector Pullman (new) - New Mutants #15
Hellion - X-Factor #5
Hex Butcher (new) - Hellions #6
Hope - HoX #5
Hugo (new) - X-Men/FF #3
Hump - Marauders #19
Husk - HoX #3
Icarus - X-Men #7
Iceman - HoX #1
Idyll (new) - Hellions #14
Isca the Unbeaten - X of Swords: Stasis #1
Jackie Bohusk - New Mutants #3
Jamie Rogers (new) - New Mutants #15
Janet Bohusk - New Mutants #3
Javier Sandoval (new) - Marvel Voices: Comunidades #1
Jean Grey - HoX #1
Jelby (new) - Deadpool #6
Jessie Drake - Marvel Voices: Pride #1
Jetstream - Hellions #1
Jodi (new) - Runaways #35
Joseph Bohusk - New Mutants #3
Josh Engelhard (new) - New Mutants #16
Josiah Guthrie - X-Men #8
Jubilee - HoX #6
Julia (new) - New Mutants #16
Julian (new) - Marvel: Indigenous Voices #1
Jumbo Carnation - Marauders #7
Kappa (new) - New Mutants #20
Kara Bohusk - New Mutants #3
Karma - New Mutants #1
Kate Pryde - HoX #1
Katherine Bohusk - New Mutants #3
Kayla (new) - X-Force #11
Kevin Mulhearn - Excalibur #22
Khora of the Burning Heart (new) - S.W.O.R.D. #5
Kid Omega - X-Force #2
Kobak Never-held (new) - S.W.O.R.D. #9
Krakoa - HoX #1
Krystal M'Kraan (new) - Lords of Empyre - Emperor Hulkling #1
La Toya Bohusk - New Mutants #3
Lactuca the Knower (new) - Planet-Size X-Men #1
Lady Lotus - The Marvels #1
Lady Mastermind - Giant-Size X-Men: Nightcrawler #1
Lash (new) - Marauders #20
Layla Miller - X-Corp #3
Leech - Fantastic Four #26
Legion - Way of X #1
Leonara Eng (new) - New Mutants #16
Liana (new) - New Mutants #16
Lifter - S.W.O.R.D. #3
Lila Cheney - S.W.O.R.D. #1
Loa - X-Men #11
Lodus Logos (new) - S.W.O.R.D #8
Lost (new) - Way of X #2 (named)/Way of X #1 (first appearance)
Lourdes Chantel - Marauders #26
Mad Jim Jaspers - X of Swords: Stasis #1
Maddie - X-Men Unlimited Infinity Comic #22
Madelyne Pryor - Hellions #1
Madison Jeffries - Sabretooth #1
Maggott - Children of the Atom #1
Magik - New Mutants #1
Magma - New Mutants #8
Magneto - HoX #1
Malice - Excalibur #19
Mammomax - Curse of the Man-Thing: X-Men
Manifold - Empyre: Aftermath Avengers #1
Manikin - Valkyrie: Jane Foster #6
Manon - New Mutants #3
Markos Argyros (new) - New Mutants #16
Marlon Bohusk - New Mutants #3
Marrow - Marauders #19
Masque - Marauders #7
Mastermind (Jason Wyngarde) - Empyre: X-Men #2
Mastermind (Martinique Jason) - Hellions #10
Maverick - Wolverine #9
Maxime - New Mutants #3
Melter - Sabretooth #1
Meggan - Excalibur #1
Mentallo - S.W.O.R.D. #2
Mercury - X-Factor #5
Michael Bohusk - New Mutants #3
Micromax - X-Men Vote (2022)
Mikhail Rasuptin - X-Force #11
Mirage - New Mutants #1
Mister X - Ravencroft #1
Moira X - HoX #6
Mole (Morlock) - Sabretooth #1
Monarch (Jamie Braddock) - Excalibur #1
Mondo - New Mutants #1
Monica Sellers (new) - New Mutants #16
Mordred - Black Knight: Curse of the Ebony Blade #2
Mother Rapture (new) - Hellions #6
Mr. Sinister - HoX #5
Mudgear the Recanter (new) - Hellions #6
Multiple Man - X-Force #4
Mystique - HoX #1