| Issue | #12 |
| Published | January 2002 |
| Cover Price | $2.25 |
| Pages | 36 |
| Editing | Mark Powers; Pete Franco (Assistant Editor) |
| Notes | Cover colored directly on pencil artwork; cardstock paper. |
| Characters | Professor X |
| Genre | Superhero |
| Pencils | Adam Kubert (signed) |
| Colors | Richard Isanove (signed) |
| Notes | Cover colored directly on pencil artwork; cardstock paper. |
| Reprinted | in Ultimate X-Men Deluxe (Panini, 2005 series) #2 |
| Characters | Professor X; Cyclops; Marvel Girl; Storm; Beast; Colossus; Wolverine; Iceman; Dr. Cornelius; Nick Fury; Colonel John Wraith; Sabretooth; Nightcrawler; Juggernaut; Rogue; General "Thunderbolt" Ross |
| Genre | Superhero |
| Letters | typeset |
| Notes | Recap of the events which led to the start of this issue. |
| Characters | Wolverine; Sabretooth; Iceman; Colossus; Toad; Cyclops; Storm; Scarlet Witch; Nightcrawler; Beast; Quicksilver; Colonel Wraith; Dr. Cornelius; Juggernaut; Professor X; Marvel Girl; Rogue; Nick Fury |
| Genre | Superhero |
| Script | Mark Millar |
| Pencils | Adam Kubert; Tom Derenick |
| Inks | Danny Miki; Scott Hanna; Lary Stucker |
| Colors | Richard Isanove |
| Letters | RS/Comicraft/WA [= Wes Abbott] |
| Notes | "Return to Weapon X": Part 6 of 6. |
| Reprinted | in Ultimate X-Men Deluxe (Panini, 2005 series) #2 |
| Notes | House Advertisement (One-Pager) for Marvel Comics Series (subscription page with Ultimates illustration). |
| Notes | Total of 8 one-page and 1 two-page advertisements for: Osmosis Jones (video/DVD, WB), Frosted Flakes (cereal, Kellogg's), Warioland 4 (game, Nintendo), Burger King Big Kids (restaurant, Burger King), Marvel ReCharge (collectible card game, Marvel, 2 pages), Make Your Holidays Marvel-ous! (merchandise, Dynamic Forces), Marvel In Motion (CD dotcomic, marvelinmotion.com), Tobacco is whacko (anti-drugs, Lorillard), Ultimate Spider-Man Underoos (clothes, Fruit of the Loom). |