Issue cover. Verify the exact issue, printing, and cover before buying.
Marvel · Silver Age · 1965
X-Men #12
Marvel · 1965
Noted for: The Juggernaut
KEY ISSUEShop this issue
We may earn a commission from these links, at no extra cost to you. Disclosure.
Before you buy
Verify the issue and printing, check the grader certification, review restoration notes, and compare recent sold examples in the same grade.
The X-Men #12 in context
Why collectors care
The first appearance of the Juggernaut, cover-dated July 1965, by Stan Lee and Jack Kirby. Cain Marko became one of the X-Men's most enduring foes and, as Professor X's stepbrother, is central to the franchise's family drama.
How to identify it
X-Men #12, July 1965, from the original 1963 series — not the 1991 X-Men volume, which also has a #12.
Common mistakes
Confusing the 1965 and 1991 issues, which is easy from a thumbnail. The 12-cent cover price and the year separate them instantly.
Grade considerations
Early X-Men issues are notorious for spine stress; high grade is genuinely difficult and priced accordingly.
Part of these hubs
X-Men #1
Marvel · 1963
1st: X-Men team
Fantastic Four #1
Marvel · 1961
1st: Fantastic Four
Amazing Spider-Man #1
Marvel · 1963
1st: Solo Spider-Man series
Amazing Fantasy #15
Marvel · 1962
1st: Spider-Man